From 0cf37e786a4c8cacc118e25bdb9491bb3d093f5e Mon Sep 17 00:00:00 2001
From: Florian Egger <flo.egger@icloud.com>
Date: Tue, 26 May 2026 14:10:48 +0200
Subject: [PATCH] Add comprehensive project documentation and fix data pipeline

- Add detailed README with architecture diagram and usage instructions
- Add API, configuration, and development documentation
- Fix price data column handling for yfinance auto_adjust=True
- Fix model feature dimension indexing and temporal attention batching
- Add missing imports and position tracking in paper broker
- Add python-dotenv support for environment variables
- Update .gitignore with Python artifacts and environment files
---
 .gitignore                    |   6 +
 README.md                     | 541 ++++++++++++++++++++++++++++++++++
 benchmark.py                  |  29 +-
 config.py                     |  19 +-
 docs/API.md                   | 406 +++++++++++++++++++++++++
 docs/CONFIG.md                |  69 +++++
 docs/DEVELOPMENT.md           | 194 ++++++++++++
 live_trading.py               |   1 +
 main.py                       |   8 +-
 requirements.txt              |   2 +-
 src/amd/optimizations.py      |  29 +-
 src/data/pipeline.py          | 428 ++++++++++++++-------------
 src/evaluation/backtester.py  |  51 +++-
 src/models/intraday_gnn.py    |  15 +-
 src/trading/paper_broker.py   |  12 +-
 src/utils/memory_manager.py   |   1 +
 src/web/api/data_endpoints.py |   2 +-
 17 files changed, 1536 insertions(+), 277 deletions(-)
 create mode 100644 README.md
 create mode 100644 docs/API.md
 create mode 100644 docs/CONFIG.md
 create mode 100644 docs/DEVELOPMENT.md

diff --git a/.gitignore b/.gitignore
index 5357087..8af6c80 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,7 @@
 implementation.md
+.env
+*.log
+__pycache__/
+*.py[cod]
+*.pkl
+*.db
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..b982373
--- /dev/null
+++ b/README.md
@@ -0,0 +1,541 @@
+# StockGNN R9700 — AMD-Optimized Graph Neural Network Trading System
+
+A real-time intraday stock trading system built around a **Graph Neural Network (GNN)** with **Temporal Attention**, optimized for the **AMD Radeon R9700 AI Pro** GPU (32GB). The system ingests alternative data (news sentiment, social media), price bars, and corporate actions to generate trade signals across a universe of stocks.
+
+---
+
+## 📋 Table of Contents
+
+- [Overview](#overview)
+- [Architecture](#architecture)
+- [Key Features](#key-features)
+- [Project Structure](#project-structure)
+- [Quick Start](#quick-start)
+- [Configuration](#configuration)
+- [Training](#training)
+- [Live Trading](#live-trading)
+- [Web Dashboard](#web-dashboard)
+- [API Reference](#api-reference)
+- [AMD Optimizations](#amd-optimizations)
+- [Memory Management](#memory-management)
+- [Data Pipeline](#data-pipeline)
+- [Trading System](#trading-system)
+- [Benchmarking](#benchmarking)
+- [Development](#development)
+- [Troubleshooting](#troubleshooting)
+- [License](#license)
+
+---
+
+## Overview
+
+StockGNN uses a **Graph Attention Network (GAT)** with:
+
+- **Temporal Attention** over multi-source feature sequences (price, news, social media)
+- **Corporate Action Awareness** for splits, dividends, and delistings
+- **Intraday GNN** variant with stateful LSTM for real-time inference
+- **Online Learning** to adapt to regime changes during market hours
+- **AMD-specific ROCm optimizations** (bf16 mixed precision, gradient checkpointing, pinned memory)
+
+---
+
+## Architecture
+
+```
+┌─────────────────────────────────────────────────────────────────┐
+│                         Data Sources                             │
+│  ┌──────────┐  ┌──────────┐  ┌──────────┐  ┌──────────────┐   │
+│  │ Polygon  │  │ yfinance   │  │ NewsAPI  │  │ Twitter/     │   │
+│  │ WebSocket│  │ Historical│  │ Sentiment│  │ Reddit       │   │
+│  └────┬─────┘  └────┬─────┘  └────┬─────┘  └──────┬───────┘   │
+└───────┼────────────┼─────────────┼───────────────┼─────────────┘
+        │            │             │               │
+        ▼            ▼             ▼               ▼
+┌─────────────────────────────────────────────────────────────────┐
+│                     Data Pipeline                                │
+│  ┌──────────┐  ┌──────────┐  ┌──────────┐  ┌──────────────┐   │
+│  │ Price    │  │ Corporate│  │ Sector   │  │ Alternative  │   │
+│  │ Data     │  │ Actions  │  │ Data     │  │ Data         │   │
+│  └────┬─────┘  └────┬─────┘  └────┬─────┘  └──────┬───────┘   │
+│       │            │             │               │             │
+│       ▼            ▼             ▼               ▼             │
+│  ┌───────────────────────────────────────────────────────┐    │
+│  │              SQLite Database (WAL mode)               │    │
+│  │  price_data | corporate_actions | features | trades  │    │
+│  └────────────────────────┬──────────────────────────────┘    │
+└─────────────────────────┼──────────────────────────────────┘
+                          │
+                          ▼
+┌─────────────────────────────────────────────────────────────────┐
+│                      GNN Models                                  │
+│  ┌────────────────────┐    ┌────────────────────┐            │
+│  │ CorporateAction-   │    │    IntradayGNN      │            │
+│  │ AwareGNN          │    │ (stateful LSTM)     │            │
+│  │                    │    │                     │            │
+│  │  TemporalAttention │    │  TemporalAttention  │            │
+│  │  GAT Conv Layers   │    │  GAT Conv Layers    │            │
+│  │  LSTM              │    │  LSTM               │            │
+│  │  Alternative Data  │    │  Real-time Features │            │
+│  │  Fusion            │    │                     │            │
+│  └────────────────────┘    └────────────────────┘            │
+└─────────────────────────────────────────────────────────────────┘
+                          │
+                          ▼
+┌─────────────────────────────────────────────────────────────────┐
+│                   Trading Execution                              │
+│  ┌──────────────┐  ┌──────────────┐  ┌──────────────┐        │
+│  │ Paper Broker │  │   IB Broker  │  │  Risk Manager │        │
+│  │ (Simulation) │  │ (Interactive  │  │ (Position    │        │
+│  │              │  │  Brokers)    │  │  Sizing)      │        │
+│  └──────────────┘  └──────────────┘  └──────────────┘        │
+└─────────────────────────────────────────────────────────────────┘
+                          │
+                          ▼
+┌─────────────────────────────────────────────────────────────────┐
+│                     Web Dashboard                                │
+│  ┌──────────┐  ┌──────────┐  ┌──────────┐  ┌──────────┐       │
+│  │ Metrics  │  │  Charts  │  │ Trading  │  │   Logs   │       │
+│  │ (Live)   │  │ (Memory, │  │ Controls │  │ (System) │       │
+│  │          │  │ Portfolio)│  │          │  │          │       │
+│  └──────────┘  └──────────┘  └──────────┘  └──────────┘       │
+└─────────────────────────────────────────────────────────────────┘
+```
+
+---
+
+## Key Features
+
+| Feature | Description |
+|---------|-------------|
+| **AMD Optimizations** | ROCm bf16 mixed precision, gradient checkpointing, Flash Attention, memory-aware batching |
+| **GNN Architecture** | Graph Attention Networks with temporal sequence processing and corporate action awareness |
+| **Live Data** | Polygon.io WebSocket for real-time trades/quotes with automatic reconnection |
+| **Alternative Data** | News sentiment (FinBERT) and social media (Twitter/Reddit) integrated into node features |
+| **Online Learning** | Periodic model updates during market hours to adapt to regime shifts |
+| **Risk Management** | Max drawdown, daily loss limits, volatility-target position sizing |
+| **Web Dashboard** | Single-page application with real-time WebSocket metrics and Chart.js visualizations |
+| **Backtesting** | Full backtesting framework with benchmark comparison and performance metrics |
+
+---
+
+## Project Structure
+
+```
+stock_gnn_r9700/
+├── config.py                   # Central configuration
+├── requirements.txt            # Python dependencies
+├── main.py                     # Main training & backtesting script
+├── live_trading.py             # Live intraday trading system
+├── benchmark.py                # Performance benchmarking
+├── README.md                   # This file
+│
+├── data/
+│   ├── raw/                    # Raw downloaded data
+│   ├── processed/              # Processed datasets
+│   └── external/               # External datasets (delisted stocks)
+│
+├── models/                     # Saved model weights
+│
+├── src/
+│   ├── amd/
+│   │   └── optimizations.py  # AMDOptimizer, AMDSparseAttention, AMDGATConv
+│   ├── data/
+│   │   ├── pipeline.py         # StockDataPipeline (SQLite, yfinance, features)
+│   │   ├── live_data.py        # LiveDataService (Polygon WebSocket)
+│   │   ├── news_processor.py   # News data processor
+│   │   ├── social_processor.py # Social media processor
+│   │   └── sentiment.py        # Sentiment analyzer
+│   ├── models/
+│   │   ├── gnn_model.py        # CorporateActionAwareGNN + TemporalAttention
+│   │   ├── intraday_gnn.py     # IntradayGNN (stateful LSTM variant)
+│   │   └── trainer.py          # GNNTrainer with AMP & gradient clipping
+│   ├── trading/
+│   │   ├── broker.py           # Abstract broker interface
+│   │   ├── paper_broker.py     # Paper trading simulation
+│   │   ├── ib_broker.py        # Interactive Brokers implementation
+│   │   └── real_time_trader.py # Real-time trading execution
+│   ├── evaluation/
+│   │   ├── backtester.py       # GNNBacktester
+│   │   ├── intraday_backtester.py
+│   │   └── metrics.py          # Sharpe, Sortino, Calmar, IR, etc.
+│   ├── utils/
+│   │   ├── memory_manager.py   # MemoryManager (AMD GPU memory tracking)
+│   │   ├── helpers.py          # generate_intraday_timestamps
+│   │   ├── visualization.py    # Plotting utilities
+│   │   └── text_processing.py  # Text cleaning
+│   └── web/
+│       ├── app.py              # FastAPI entrypoint
+│       ├── services/
+│       │   └── state.py        # Shared application state
+│       ├── api/
+│       │   ├── dashboard.py    # Dashboard API endpoints
+│       │   ├── trading_endpoints.py
+│       │   ├── models_endpoints.py
+│       │   └── data_endpoints.py
+│       ├── templates/
+│       │   └── index.html      # Main dashboard template
+│       └── static/
+│           ├── css/style.css   # Dark-themed responsive UI
+│           └── js/app.js       # Chart.js, WebSocket, API client
+│
+└── notebooks/                  # Jupyter notebooks for exploration
+```
+
+---
+
+## Quick Start
+
+### Prerequisites
+
+- Python 3.10+
+- AMD GPU with ROCm 5.6+ (or NVIDIA GPU with CUDA)
+- 32GB+ GPU memory recommended (configurable)
+
+### Installation
+
+```bash
+# Clone repository
+git clone <repository-url>
+cd stock_gnn_r9700
+
+# Create virtual environment
+python -m venv venv
+source venv/bin/activate  # Windows: venv\Scripts\activate
+
+# Install dependencies
+pip install -r requirements.txt
+
+# For AMD ROCm specifically:
+# pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm5.6
+# pip install torch-geometric torch-scatter torch-sparse -f https://data.pyg.org/whl/torch-2.1.0+rocm5.6.html
+```
+
+### Run Training
+
+```bash
+python main.py
+```
+
+This will:
+1. Initialize the data pipeline and download historical data
+2. Create training/validation datasets
+3. Train the GNN model with AMD optimizations
+4. Run backtesting on validation data
+5. Generate performance plots and metrics
+
+### Run Live Trading (Paper)
+
+```bash
+python live_trading.py
+```
+
+### Run Web Dashboard
+
+```bash
+python -m uvicorn src.web.app:app --host 0.0.0.0 --port 8000
+```
+
+Then open `http://localhost:8000` in your browser.
+
+---
+
+## Configuration
+
+All settings are centralized in `config.py`. Key parameters:
+
+```python
+# GPU Settings
+DEVICE = 'cuda' if torch.cuda.is_available() else 'cpu'
+AMD_GPU = True
+GPU_MEMORY_LIMIT = 0.9       # Use 90% of 32GB = ~28.8GB
+MIXED_PRECISION = True
+PRECISION = 'bf16'             # 'fp16' or 'bf16'
+ROCM_OPT_LEVEL = 'O2'
+
+# Model Architecture
+HIDDEN_CHANNELS = 128
+NUM_HEADS = 16
+DROPOUT = 0.3
+LEARNING_RATE = 0.0005
+BATCH_SIZE = 128
+SEQUENCE_LENGTH = 60
+
+# Intraday Trading
+TRADING_FREQUENCY = '5min'     # '1min', '5min', '15min', '30min', '1h'
+INITIAL_CAPITAL = 100000
+MAX_POSITION_SIZE = 0.03       # 3% of portfolio per position
+
+# Live Data
+DATA_PROVIDER = 'polygon'      # 'polygon', 'alphavantage', 'ib'
+POLYGON_API_KEY = 'your_key'
+```
+
+---
+
+## Training
+
+The training loop (`src/models/trainer.py`) supports:
+
+- **Mixed Precision Training** (bf16/fp16) via `torch.cuda.amp`
+- **Gradient Checkpointing** for memory-efficient large models
+- **AdamW Optimizer** with weight decay
+- **ReduceLROnPlateau** scheduler
+- **Automatic batch skipping** when GPU memory is constrained
+- **Per-epoch benchmarking** and checkpoint saving
+
+Training is triggered via the Web Dashboard or `main.py`.
+
+---
+
+## Live Trading
+
+The live trading system (`live_trading.py`) runs an async event loop with:
+
+1. **LiveDataService** — connects to Polygon.io WebSocket for real-time market data
+2. **RealTimeTrader** — generates signals on configurable intervals (1min–1h)
+3. **PaperTradingBroker** — simulates execution (or swap for InteractiveBrokersBroker)
+4. **Online Learning** — periodic model updates every hour
+5. **Memory Monitor** — automatic GPU cache clearing when usage exceeds 85%
+
+---
+
+## Web Dashboard
+
+The dashboard provides real-time monitoring and control:
+
+| Feature | Description |
+|---------|-------------|
+| **Live Metrics** | GPU memory %, portfolio value, cash, model status via WebSocket |
+| **Charts** | Memory usage and portfolio value Chart.js graphs (60-point history) |
+| **Trading Controls** | Start/stop trading, view positions/orders, close positions |
+| **Model Controls** | Train, save, load, benchmark models |
+| **Data Controls** | View tickers, trigger data updates |
+| **System Logs** | Real-time log streaming with clear button |
+
+---
+
+## API Reference
+
+### Dashboard
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/api/dashboard/metrics` | Current metrics (memory, account, model) |
+| GET | `/api/dashboard/logs?limit=100` | Recent log entries |
+| POST | `/api/dashboard/logs/clear` | Clear stored logs |
+
+### Trading
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/api/trading/status` | Trading status, cash, positions |
+| POST | `/api/trading/start` | Start live trading |
+| POST | `/api/trading/stop` | Stop live trading |
+| GET | `/api/trading/orders` | List all orders |
+| POST | `/api/trading/order` | Submit manual order |
+| POST | `/api/trading/cancel/{id}` | Cancel order |
+| POST | `/api/trading/positions/close/{ticker}` | Close position |
+| POST | `/api/trading/positions/close-all` | Close all positions |
+
+### Models
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/api/models/status` | Model configuration status |
+| POST | `/api/models/train` | Start training run |
+| POST | `/api/models/train/stop` | Stop training |
+| POST | `/api/models/save` | Save model weights |
+| POST | `/api/models/load` | Load model weights |
+| POST | `/api/models/benchmark` | Run performance benchmark |
+
+### Data
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/api/data/tickers` | List tracked tickers |
+| GET | `/api/data/pipeline/status` | Pipeline status |
+| POST | `/api/data/update` | Trigger data update |
+| GET | `/api/data/features/{ticker}` | Latest features for ticker |
+| GET | `/api/data/price/{ticker}` | Latest price for ticker |
+| GET | `/api/data/prices/{ticker}?limit=30` | Historical prices |
+
+### WebSocket
+
+| Event | Direction | Description |
+|-------|-----------|-------------|
+| `metrics` | Server → Client | Real-time metrics broadcast (every 2s) |
+| `ping` | Client → Server | Keep-alive / latency check |
+
+---
+
+## AMD Optimizations
+
+`src/amd/optimizations.py` provides:
+
+- **AMDOptimizer**: Configures ROCm, enables Flash Attention, sets memory limits
+- **AMDSparseAttention**: Custom attention implementation optimized for AMD GPUs
+- **AMDGATConv**: GAT layer using `torch_geometric.nn.MessagePassing` with `softmax`
+
+Key optimizations applied:
+
+| Technique | Benefit |
+|-----------|---------|
+| bf16 Mixed Precision | 2x memory reduction, faster compute on MI200/RX7000 |
+| Gradient Checkpointing | Train larger models with same GPU memory |
+| Flash Attention | O(N) memory vs O(N²) for long sequences |
+| SiLU Activation | Better AMD GPU utilization vs ReLU |
+| Pinned Memory | Faster CPU→GPU data transfers |
+
+---
+
+## Memory Management
+
+`src/utils/memory_manager.py` provides:
+
+- **GPU Memory Limiting** — caps usage to 90% of total memory
+- **Automatic Cache Clearing** — triggers at configurable thresholds (default 85%)
+- **Per-Operation Memory Checks** — skips batches if insufficient memory
+- **Background Monitoring** — logs usage every 60 seconds
+- **Model Memory Estimation** — estimates activation memory before training
+
+---
+
+## Data Pipeline
+
+`src/data/pipeline.py` handles:
+
+1. **SQLite Database** with WAL mode for concurrent access
+2. **Price Data** from yfinance (daily OHLCV, auto-adjusted)
+3. **Corporate Actions** (splits, dividends, delistings)
+4. **Sector/Industry** classifications
+5. **Alternative Data** (news sentiment, social media volume)
+6. **Graph Construction** — edges based on sector correlation
+
+The pipeline supports incremental updates: only fetches new data since last run.
+
+---
+
+## Trading System
+
+### Signal Generation
+
+The trading system generates signals when:
+- Market is open (9:30 AM – 4:00 PM ET)
+- Interval matches `TRADING_FREQUENCY` (e.g., every 5 minutes)
+- Model prediction > +0.2% → BUY
+- Model prediction < -0.2% and position exists → SELL
+
+### Risk Management
+
+| Rule | Default |
+|------|---------|
+| Max Position Size | 3% of portfolio |
+| Max Daily Loss | 1% |
+| Max Drawdown | 5% |
+| Max Daily Positions | 50 |
+| Max Hold Time | 4 hours |
+| Min Hold Time | 10 minutes |
+
+### Execution
+
+- **VWAP** execution algorithm (configurable)
+- **Paper Broker** for simulation
+- **Interactive Brokers** adapter for live trading
+
+---
+
+## Benchmarking
+
+`benchmark.py` measures:
+
+| Metric | Description |
+|--------|-------------|
+| Inference Time | Average forward pass latency |
+| Training Time | Average full training step latency |
+| Throughput | Samples/second for inference and training |
+| Memory Usage | Peak GPU memory during benchmark |
+
+Run with:
+```bash
+python benchmark.py
+```
+
+Results are logged to `benchmark_r9700.log`.
+
+---
+
+## Development
+
+### Adding a New Data Source
+
+1. Create a processor in `src/data/` (e.g., `src/data/earnings_processor.py`)
+2. Implement `fetch_earnings(tickers, start, end)` and `get_earnings_features(ticker, date)`
+3. Register in `StockDataPipeline`
+4. Update `config.py` with API keys and feature definitions
+
+### Adding a New Model Variant
+
+1. Inherit from `nn.Module` in `src/models/`
+2. Use `torch.utils.checkpoint.checkpoint` for memory efficiency
+3. Wrap with `AMDOptimizer.optimize_model()` before training
+4. Register in `GNNTrainer`
+
+### Adding a New Trading Strategy
+
+1. Subclass `Broker` for execution
+2. Implement `_generate_trading_signals()` in `RealTimeTrader`
+3. Configure thresholds in `config.py`
+
+---
+
+## Troubleshooting
+
+### GPU Out of Memory
+
+- Reduce `BATCH_SIZE` in `config.py`
+- Reduce `SEQUENCE_LENGTH` or `HIDDEN_CHANNELS`
+- Enable gradient checkpointing (`MIXED_PRECISION = True`)
+- Lower `GPU_MEMORY_LIMIT` to trigger earlier cache clearing
+
+### ROCm Installation Issues
+
+```bash
+# Verify ROCm is installed
+rocminfo
+
+# Check PyTorch sees the GPU
+python -c "import torch; print(torch.cuda.is_available())"
+```
+
+### Data Pipeline Empty
+
+- Ensure `yfinance` can connect to Yahoo Finance
+- Check `data/processed/` directory permissions
+- Verify ticker symbols are valid
+
+### WebSocket Disconnects
+
+- Check `WEBSOCKET_MAX_RETRIES` and `WEBSOCKET_RECONNECT_DELAY` in config
+- Verify Polygon.io API key is valid
+- Check firewall rules for WebSocket connections
+
+### Model Not Loading
+
+- Verify `models/stock_gnn_r9700.pt` exists
+- Check `config.py` `MODEL_DIR` path
+- Ensure `DEVICE` matches training device (CPU vs CUDA)
+
+---
+
+## License
+
+MIT License — see [LICENSE](LICENSE) for details.
+
+---
+
+## Acknowledgments
+
+- PyTorch Geometric for GNN implementations
+- yfinance for historical market data
+- Polygon.io for real-time market data
+- Chart.js for dashboard visualizations
diff --git a/benchmark.py b/benchmark.py
index abc6aeb..9a98964 100644
--- a/benchmark.py
+++ b/benchmark.py
@@ -4,6 +4,7 @@ import time
 import numpy as np
 import torch
 import torch.nn as nn
+from torch_geometric.data import Data
 
 from config import config
 from src.amd.optimizations import AMDOptimizer
@@ -44,21 +45,18 @@ def benchmark_model():
     num_stocks = 50  # Number of stocks in the graph
 
     # Create random data
-    x = torch.randn(num_stocks, sequence_length, num_features).to(config.DEVICE)
-
-    # Create random edges
     num_edges = 200
+    x = torch.randn(num_stocks, sequence_length, num_features).to(config.DEVICE)
     edge_index = torch.randint(0, num_stocks, (2, num_edges)).to(config.DEVICE)
     edge_attr = torch.randn(num_edges, 1).to(config.DEVICE)
-
-    # Create target
     y = torch.randn(num_stocks, 1).to(config.DEVICE)
+    sample_data = Data(x=x, edge_index=edge_index, edge_attr=edge_attr, y=y)
 
     # Warm-up
     logger.info("Warming up...")
     for _ in range(10):
         with torch.no_grad():
-            _ = model((x, edge_index, edge_attr))
+            _ = model(sample_data)
 
     # Benchmark inference
     logger.info("Benchmarking inference...")
@@ -67,7 +65,7 @@ def benchmark_model():
 
     for _ in range(num_runs):
         with torch.no_grad():
-            _ = model((x, edge_index, edge_attr))
+            _ = model(sample_data)
 
     inference_time = (time.time() - start_time) / num_runs
     logger.info(f"Average inference time: {inference_time:.6f} seconds")
@@ -82,7 +80,7 @@ def benchmark_model():
 
     for _ in range(num_runs):
         optimizer.zero_grad()
-        out = model((x, edge_index, edge_attr))
+        out = model(sample_data)
         loss = criterion(out, y)
         loss.backward()
         optimizer.step()
@@ -109,24 +107,25 @@ def benchmark_model():
     for batch_size in batch_sizes:
         for seq_len in sequence_lengths:
             # Create data for this configuration
-            x = torch.randn(num_stocks, seq_len, num_features).to(config.DEVICE)
-            edge_index = torch.randint(0, num_stocks, (2, num_edges)).to(config.DEVICE)
-            edge_attr = torch.randn(num_edges, 1).to(config.DEVICE)
-            y = torch.randn(num_stocks, 1).to(config.DEVICE)
+            bx = torch.randn(num_stocks, seq_len, num_features).to(config.DEVICE)
+            bei = torch.randint(0, num_stocks, (2, num_edges)).to(config.DEVICE)
+            bea = torch.randn(num_edges, 1).to(config.DEVICE)
+            by = torch.randn(num_stocks, 1).to(config.DEVICE)
+            bdata = Data(x=bx, edge_index=bei, edge_attr=bea, y=by)
 
             # Benchmark inference
             start_time = time.time()
             for _ in range(10):  # Fewer runs for detailed benchmark
                 with torch.no_grad():
-                    _ = model((x, edge_index, edge_attr))
+                    _ = model(bdata)
             inf_time = (time.time() - start_time) / 10
 
             # Benchmark training
             start_time = time.time()
             for _ in range(10):
                 optimizer.zero_grad()
-                out = model((x, edge_index, edge_attr))
-                loss = criterion(out, y)
+                out = model(bdata)
+                loss = criterion(out, by)
                 loss.backward()
                 optimizer.step()
             train_time = (time.time() - start_time) / 10
diff --git a/config.py b/config.py
index 722326d..2def8db 100644
--- a/config.py
+++ b/config.py
@@ -2,6 +2,9 @@ import os
 from datetime import datetime, timedelta
 
 import torch
+from dotenv import load_dotenv
+
+load_dotenv()
 
 
 class Config:
@@ -10,7 +13,7 @@ class Config:
     VERSION = "1.0.0"
 
     # Data directories
-    BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+    BASE_DIR = os.path.dirname(os.path.abspath(__file__))
     DATA_DIR = os.path.join(BASE_DIR, "data")
     RAW_DATA_DIR = os.path.join(DATA_DIR, "raw")
     PROCESSED_DATA_DIR = os.path.join(DATA_DIR, "processed")
@@ -111,11 +114,11 @@ class Config:
     DATA_BUFFER_SIZE = 5000  # Number of data points to keep in memory
     DATA_FLUSH_INTERVAL = 300  # seconds - how often to flush data to database
 
-    # Alternative data settings
-    NEWS_API_KEY = "your_news_api_key"
-    TWITTER_BEARER_TOKEN = "your_twitter_bearer_token"
-    REDDIT_CLIENT_ID = "your_reddit_client_id"
-    REDDIT_CLIENT_SECRET = "your_reddit_client_secret"
+    # Alternative data settings (set via .env or environment variables)
+    NEWS_API_KEY = os.environ.get("NEWS_API_KEY", "")
+    TWITTER_BEARER_TOKEN = os.environ.get("TWITTER_BEARER_TOKEN", "")
+    REDDIT_CLIENT_ID = os.environ.get("REDDIT_CLIENT_ID", "")
+    REDDIT_CLIENT_SECRET = os.environ.get("REDDIT_CLIENT_SECRET", "")
     NEWS_LOOKBACK_DAYS = 7  # Number of days to look back for news
     SOCIAL_MEDIA_LOOKBACK_DAYS = 3  # Number of days to look back for social media
 
@@ -159,8 +162,8 @@ class Config:
     # Live trading settings
     LIVE_DATA_ENABLED = True
     DATA_PROVIDER = "polygon"  # 'polygon', 'alphavantage', 'ib', 'tdameritrade'
-    POLYGON_API_KEY = "your_polygon_api_key"
-    ALPHA_VANTAGE_API_KEY = "your_alpha_vantage_api_key"
+    POLYGON_API_KEY = os.environ.get("POLYGON_API_KEY", "")
+    ALPHA_VANTAGE_API_KEY = os.environ.get("ALPHA_VANTAGE_API_KEY", "")
     IB_HOST = "127.0.0.1"
     IB_PORT = 7497
     IB_CLIENT_ID = 1
diff --git a/docs/API.md b/docs/API.md
new file mode 100644
index 0000000..f0abfa7
--- /dev/null
+++ b/docs/API.md
@@ -0,0 +1,406 @@
+# API Reference
+
+Base URL: `http://localhost:8000`
+
+---
+
+## Dashboard
+
+### `GET /api/dashboard/metrics`
+
+Returns current system metrics.
+
+**Response:**
+```json
+{
+  "memory": {
+    "allocated_gb": 4.2,
+    "max_allocated_gb": 5.1,
+    "total_gb": 32.0,
+    "limit_gb": 28.8,
+    "usage_percent": 13.1,
+    "free_gb": 24.6
+  },
+  "account": {
+    "cash": 100000.00,
+    "total_value": 100000.00,
+    "positions_count": 0,
+    "positions": {}
+  },
+  "model": {
+    "status": "loaded",
+    "device": "cuda",
+    "amd_gpu": true,
+    "mixed_precision": true,
+    "precision": "bf16",
+    "hidden_channels": 128,
+    "num_heads": 16,
+    "batch_size": 128,
+    "learning_rate": 0.0005
+  },
+  "system": {
+    "project_name": "StockGNN_R9700",
+    "version": "1.0.0",
+    "training_active": false,
+    "trading_active": false
+  }
+}
+```
+
+### `GET /api/dashboard/logs?limit=100`
+
+Returns recent log entries.
+
+**Response:**
+```json
+{
+  "logs": [
+    "[2024-01-15 09:30:00] Trading started",
+    "[2024-01-15 09:30:02] Model loaded from models/stock_gnn_r9700.pt"
+  ],
+  "total": 2
+}
+```
+
+### `POST /api/dashboard/logs/clear`
+
+Clears stored logs.
+
+**Response:**
+```json
+{"status": "cleared"}
+```
+
+---
+
+## Trading
+
+### `GET /api/trading/status`
+
+**Response:**
+```json
+{
+  "active": false,
+  "cash": 100000.00,
+  "total_value": 100000.00,
+  "positions": {},
+  "orders_count": 0
+}
+```
+
+### `POST /api/trading/start`
+
+Starts live trading.
+
+**Response:**
+```json
+{"status": "started"}
+```
+
+### `POST /api/trading/stop`
+
+Stops live trading.
+
+**Response:**
+```json
+{"status": "stopped"}
+```
+
+### `GET /api/trading/orders`
+
+Lists all orders.
+
+**Response:**
+```json
+[
+  {
+    "order_id": "abc-123",
+    "ticker": "AAPL",
+    "action": "buy",
+    "quantity": 100,
+    "price": 150.0,
+    "timestamp": "2024-01-15 09:30:00",
+    "type": "market",
+    "status": "filled"
+  }
+]
+```
+
+### `POST /api/trading/order`
+
+Submits a manual order.
+
+**Request Body:**
+```json
+{
+  "ticker": "AAPL",
+  "action": "buy",
+  "quantity": 100,
+  "price": 150.0,
+  "timestamp": "2024-01-15 09:30:00",
+  "type": "market"
+}
+```
+
+**Response:**
+```json
+{"status": "submitted", "order_id": "abc-123"}
+```
+
+### `POST /api/trading/cancel/{order_id}`
+
+Cancels an order.
+
+**Response:**
+```json
+{"status": "cancelled"}
+```
+
+### `POST /api/trading/positions/close/{ticker}`
+
+Closes a position.
+
+**Response:**
+```json
+{"status": "submitted", "order_id": "def-456"}
+```
+
+### `POST /api/trading/positions/close-all`
+
+Closes all positions.
+
+**Response:**
+```json
+{
+  "status": "submitted",
+  "results": [
+    {"ticker": "AAPL", "order_id": "ghi-789"}
+  ]
+}
+```
+
+---
+
+## Models
+
+### `GET /api/models/status`
+
+**Response:**
+```json
+{
+  "status": "loaded",
+  "training_active": false,
+  "device": "cuda",
+  "amd_gpu": true,
+  "mixed_precision": true,
+  "precision": "bf16",
+  "model_name": "stock_gnn_r9700",
+  "hidden_channels": 128,
+  "num_heads": 16,
+  "dropout": 0.3,
+  "learning_rate": 0.0005,
+  "batch_size": 128,
+  "epochs": 200,
+  "sequence_length": 60
+}
+```
+
+### `POST /api/models/train`
+
+Starts training.
+
+**Response:**
+```json
+{"status": "started"}
+```
+
+### `POST /api/models/train/stop`
+
+Stops training.
+
+**Response:**
+```json
+{"status": "stopped"}
+```
+
+### `POST /api/models/save`
+
+Saves model weights.
+
+**Response:**
+```json
+{"status": "saved"}
+```
+
+### `POST /api/models/load`
+
+Loads model weights.
+
+**Response:**
+```json
+{"status": "loaded"}
+```
+
+### `POST /api/models/benchmark`
+
+Runs performance benchmark.
+
+**Response:**
+```json
+{
+  "status": "complete",
+  "inference_time_ms": 2.341,
+  "training_time_ms": 8.567,
+  "inference_throughput": 427.0,
+  "training_throughput": 116.7,
+  "memory_allocated_gb": 4.5,
+  "device": "cuda"
+}
+```
+
+---
+
+## Data
+
+### `GET /api/data/tickers`
+
+**Response:**
+```json
+{
+  "initial": ["AAPL", "MSFT", "GOOGL", ...],
+  "index": "^GSPC",
+  "count": 30
+}
+```
+
+### `GET /api/data/pipeline/status`
+
+**Response:**
+```json
+{
+  "status": "ready",
+  "tickers_loaded": 30,
+  "db_path": "data/processed/stock_data.db"
+}
+```
+
+### `POST /api/data/update`
+
+Triggers a full data update.
+
+**Response:**
+```json
+{"status": "started"}
+```
+
+### `GET /api/data/features/{ticker}`
+
+**Response:**
+```json
+{
+  "ticker": "AAPL",
+  "timestamp": "2024-01-15 09:30:00",
+  "features": {
+    "AAPL": {
+      "ticker": "AAPL",
+      "timestamp": "2024-01-15 09:30:00",
+      "return": 0.0,
+      "volatility": 0.2,
+      ...
+    }
+  }
+}
+```
+
+### `GET /api/data/price/{ticker}`
+
+**Response:**
+```json
+{
+  "ticker": "AAPL",
+  "date": "2024-01-15 00:00:00",
+  "open": 150.0,
+  "high": 152.0,
+  "low": 149.0,
+  "close": 151.0,
+  "adj_close": 151.0,
+  "volume": 50000000
+}
+```
+
+### `GET /api/data/prices/{ticker}?limit=30`
+
+**Response:**
+```json
+[
+  {
+    "date": "2024-01-15",
+    "open": 150.0,
+    "high": 152.0,
+    "low": 149.0,
+    "close": 151.0,
+    "volume": 50000000
+  }
+]
+```
+
+### `GET /api/data/corporate-actions/{ticker}`
+
+**Response:**
+```json
+{
+  "ticker": "AAPL",
+  "actions": {
+    "splits": {"2020-08-31": 4.0},
+    "dividends": {"2024-01-10": 0.24}
+  }
+}
+```
+
+---
+
+## WebSocket
+
+### Connection
+
+```javascript
+const ws = new WebSocket('ws://localhost:8000/ws');
+```
+
+### Server → Client Messages
+
+**Type: `metrics`**
+```json
+{
+  "type": "metrics",
+  "timestamp": "2024-01-15T09:30:00.000000",
+  "memory": {
+    "allocated_gb": 4.2,
+    "total_gb": 32.0,
+    "usage_percent": 13.1
+  },
+  "account": {
+    "cash": 100000.00,
+    "total_value": 100000.00,
+    "positions": 0
+  },
+  "model": {
+    "status": "loaded",
+    "device": "cuda",
+    "mixed_precision": true,
+    "precision": "bf16"
+  }
+}
+```
+
+### Client → Server Messages
+
+**Ping:**
+```json
+{"action": "ping"}
+```
+
+**Subscribe:**
+```json
+{"action": "subscribe", "channel": "all"}
+```
diff --git a/docs/CONFIG.md b/docs/CONFIG.md
new file mode 100644
index 0000000..dbf4075
--- /dev/null
+++ b/docs/CONFIG.md
@@ -0,0 +1,69 @@
+# Configuration Guide
+
+All configuration is centralized in `config.py` via the `Config` class.
+
+## GPU Settings
+
+| Parameter | Default | Description |
+|-----------|---------|-------------|
+| `DEVICE` | `'cuda'` | PyTorch device (auto-detected) |
+| `AMD_GPU` | `True` | Enable AMD-specific optimizations |
+| `GPU_MEMORY_LIMIT` | `0.9` | Fraction of GPU memory to use (0.0–1.0) |
+| `ROCM_OPT_LEVEL` | `'O2'` | ROCm JIT optimization level |
+| `MIXED_PRECISION` | `True` | Enable AMP |
+| `PRECISION` | `'bf16'` | `'bf16'` or `'fp16'` |
+
+## Model Hyperparameters
+
+| Parameter | Default | Description |
+|-----------|---------|-------------|
+| `HIDDEN_CHANNELS` | `128` | GNN hidden dimension |
+| `NUM_HEADS` | `16` | Attention heads |
+| `DROPOUT` | `0.3` | Dropout rate |
+| `LEARNING_RATE` | `0.0005` | AdamW learning rate |
+| `BATCH_SIZE` | `128` | Training batch size |
+| `SEQUENCE_LENGTH` | `60` | Temporal window length |
+| `EPOCHS` | `200` | Max training epochs |
+
+## Trading Settings
+
+| Parameter | Default | Description |
+|-----------|---------|-------------|
+| `TRADING_FREQUENCY` | `'5min'` | Signal generation interval |
+| `INITIAL_CAPITAL` | `100000` | Starting portfolio value |
+| `MAX_POSITION_SIZE` | `0.03` | Max position as fraction of portfolio |
+| `MAX_DAILY_LOSS` | `0.01` | Daily loss circuit breaker |
+| `MAX_DRAWDOWN` | `0.05` | Max portfolio drawdown |
+
+## Data Providers
+
+| Parameter | Default | Description |
+|-----------|---------|-------------|
+| `DATA_PROVIDER` | `'polygon'` | Live data source |
+| `POLYGON_API_KEY` | — | Polygon.io API key |
+| `ALPHA_VANTAGE_API_KEY` | — | Alpha Vantage API key |
+| `IB_HOST` | `'127.0.0.1'` | Interactive Brokers TWS host |
+| `IB_PORT` | `7497` | TWS API port |
+
+## Feature Definitions
+
+Three feature vectors are defined and referenced by the models:
+
+```python
+NEWS_FEATURES = ['sentiment', 'volume', 'recency', 'source_reliability', 'topic_relevance']
+SOCIAL_FEATURES = ['twitter_sentiment', 'twitter_volume', 'reddit_sentiment', 'reddit_volume', 'social_momentum']
+INTRADAY_FEATURES = ['return', 'volatility', 'momentum', 'volume_momentum', 'bid_ask_spread', 'bid_ask_spread_pct', 'volume_imbalance', 'order_flow', 'vwap_deviation']
+```
+
+## Environment Variables
+
+Sensitive keys can be overridden via environment variables:
+
+```bash
+export POLYGON_API_KEY="your_key"
+export ALPHA_VANTAGE_API_KEY="your_key"
+export NEWS_API_KEY="your_key"
+export TWITTER_BEARER_TOKEN="your_token"
+```
+
+These are read in `config.py` and fall back to hardcoded placeholders if not set.
diff --git a/docs/DEVELOPMENT.md b/docs/DEVELOPMENT.md
new file mode 100644
index 0000000..65bf490
--- /dev/null
+++ b/docs/DEVELOPMENT.md
@@ -0,0 +1,194 @@
+# Development Guide
+
+## Setting Up Development Environment
+
+```bash
+# Clone repo
+git clone <repository-url>
+cd stock_gnn_r9700
+
+# Create virtual environment
+python -m venv venv
+source venv/bin/activate
+
+# Install in editable mode + dev dependencies
+pip install -r requirements.txt
+pip install black isort mypy pytest pytest-asyncio
+```
+
+## Code Style
+
+Format with `black` and `isort`:
+
+```bash
+black src/ config.py main.py live_trading.py benchmark.py
+isort src/ config.py main.py live_trading.py benchmark.py
+```
+
+Type-check with `mypy`:
+
+```bash
+mypy src/
+```
+
+## Running Tests
+
+```bash
+pytest tests/ -v
+```
+
+## Adding a New Data Processor
+
+1. Create file in `src/data/`:
+
+```python
+# src/data/earnings_processor.py
+import logging
+from typing import Dict, List
+
+logger = logging.getLogger(__name__)
+
+class EarningsProcessor:
+    def __init__(self):
+        self.earnings_data = {}
+
+    def fetch_earnings(self, tickers: List[str], start_date: str, end_date: str):
+        """Fetch earnings data."""
+        pass
+
+    def get_earnings_features(self, ticker: str, date: str) -> Dict:
+        """Return earnings-based features."""
+        return {"earnings_surprise": 0.0, "eps_growth": 0.0}
+```
+
+2. Import and initialize in `StockDataPipeline.__init__`:
+
+```python
+from src.data.earnings_processor import EarningsProcessor
+
+class StockDataPipeline:
+    def __init__(self):
+        ...
+        self.earnings_processor = EarningsProcessor()
+```
+
+3. Call `fetch_earnings` in `update_alternative_data` and include features in `create_training_dataset`.
+
+## Adding a New Model
+
+1. Create file in `src/models/`:
+
+```python
+# src/models/my_model.py
+import torch
+import torch.nn as nn
+from config import config
+
+class MyModel(nn.Module):
+    def __init__(self, num_features: int):
+        super().__init__()
+        self.fc = nn.Linear(num_features, 1)
+
+    def forward(self, data):
+        return self.fc(data.x)
+```
+
+2. Wrap with `AMDOptimizer` before training:
+
+```python
+from src.amd.optimizations import AMDOptimizer
+
+model = MyModel(num_features)
+model = AMDOptimizer().optimize_model(model)
+```
+
+## Adding a New Trading Strategy
+
+1. Subclass `Broker` in `src/trading/`:
+
+```python
+from src.trading.broker import Broker
+
+class AlpacaBroker(Broker):
+    def submit_order(self, order):
+        # Implementation
+        pass
+```
+
+2. Instantiate in `live_trading.py` and pass to `RealTimeTrader`.
+
+## Adding API Endpoints
+
+1. Create router in `src/web/api/`:
+
+```python
+from fastapi import APIRouter
+
+router = APIRouter()
+
+@router.get("/health")
+async def health():
+    return {"status": "ok"}
+```
+
+2. Include in `src/web/app.py`:
+
+```python
+from src.web.api import my_endpoints
+app.include_router(my_endpoints.router, prefix="/api/my")
+```
+
+## Environment Variables
+
+Set in `.env` file (not committed):
+
+```bash
+POLYGON_API_KEY=your_key
+ALPHA_VANTAGE_API_KEY=your_key
+IB_CLIENT_ID=1
+```
+
+Load with `python-dotenv` if needed.
+
+## Git Workflow
+
+```bash
+# Feature branch
+git checkout -b feature/my-feature
+
+# Commit
+git add .
+git commit -m "feat: add my feature"
+
+# Push
+git push origin feature/my-feature
+```
+
+## Debugging
+
+### GPU Memory Issues
+
+```python
+from src.utils.memory_manager import MemoryManager
+
+mm = MemoryManager()
+print(mm.get_memory_stats())
+```
+
+### Model Inspection
+
+```python
+from src.models.gnn_model import CorporateActionAwareGNN
+
+model = CorporateActionAwareGNN(num_features=10)
+print(sum(p.numel() for p in model.parameters()))  # parameter count
+```
+
+### Data Inspection
+
+```python
+from src.data.pipeline import StockDataPipeline
+
+pipe = StockDataPipeline()
+print(pipe.price_data['AAPL'].tail())
+```
diff --git a/live_trading.py b/live_trading.py
index 0d82106..d68376b 100644
--- a/live_trading.py
+++ b/live_trading.py
@@ -4,6 +4,7 @@ import time
 from datetime import datetime, timedelta
 from typing import Dict, List
 
+import numpy as np
 import torch
 from src.trading.paper_broker import PaperTradingBroker
 from src.trading.real_time_trader import RealTimeTrader
diff --git a/main.py b/main.py
index 096cf84..b489b04 100644
--- a/main.py
+++ b/main.py
@@ -58,8 +58,8 @@ def main():
 
     # Initialize model
     logger.info("Initializing GNN model")
-    # Get number of features from first data point
-    num_features = train_dataset[0].x.shape[1]
+    # x has shape (num_stocks, seq_len, num_features); features are in the last dim
+    num_features = train_dataset[0].x.shape[2]
     model = CorporateActionAwareGNN(num_features)
 
     # Optimize model for AMD GPU
@@ -95,9 +95,9 @@ def main():
     backtester = GNNBacktester(model, pipeline)
     portfolio_values, trade_log = backtester.run_backtest(val_dataset)
 
-    # Get benchmark data
+    # Get benchmark data (auto_adjust=True means 'Close' already contains adjusted prices)
     benchmark_data = pipeline.price_data[config.INDEX_TICKER]
-    benchmark_values = benchmark_data.loc[portfolio_values.index]["Adj Close"]
+    benchmark_values = benchmark_data.loc[portfolio_values.index]["Close"]
 
     # Calculate performance metrics
     logger.info("Calculating performance metrics")
diff --git a/requirements.txt b/requirements.txt
index 1739a39..7023826 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ pytz>=2023.3
 requests>=2.28.0
 websockets>=11.0
 SQLAlchemy>=2.0.0
-sqlite3>=3.40.0  # Part of Python standard library
+python-dotenv>=1.0.0
 
 # AMD GPU support for PyTorch (ROCm 5.6)
 torch>=2.1.0  # ROCm-compatible version
diff --git a/src/amd/optimizations.py b/src/amd/optimizations.py
index d6a0690..79dcfd4 100644
--- a/src/amd/optimizations.py
+++ b/src/amd/optimizations.py
@@ -54,17 +54,12 @@ class AMDOptimizer:
 
     def optimize_model(self, model: nn.Module):
         """Apply AMD-specific optimizations to a model"""
+        model = model.to(self.device)
+
         if config.DEVICE != "cuda" or not config.AMD_GPU:
             return model
 
         try:
-            # Move model to GPU
-            model = model.to(self.device)
-
-            # Apply mixed precision if enabled
-            if config.MIXED_PRECISION:
-                model = self._apply_mixed_precision(model)
-
             # Apply memory optimizations
             model = self._apply_memory_optimizations(model)
 
@@ -73,22 +68,14 @@ class AMDOptimizer:
 
         except Exception as e:
             logger.error(f"Error optimizing model: {str(e)}")
-            return model.to(self.device)
+            return model
 
     def _apply_mixed_precision(self, model: nn.Module):
-        """Apply mixed precision training to the model"""
-        # Convert model to use mixed precision
-        if config.PRECISION == "fp16":
-            model = model.half()
-        elif config.PRECISION == "bf16":
-            model = model.to(torch.bfloat16)
-
-        # Convert specific layers to full precision if needed
-        for name, module in model.named_modules():
-            if isinstance(module, (nn.LayerNorm, nn.BatchNorm2d)):
-                module = module.float()
-
-        logger.info(f"Applied mixed precision training with {config.PRECISION}")
+        """Mixed precision is handled via torch.autocast in the training loop.
+        Permanently casting parameters causes numerical instability; this is a no-op."""
+        logger.info(
+            f"Mixed precision ({config.PRECISION}) handled via torch.autocast in training loop"
+        )
         return model
 
     def _apply_memory_optimizations(self, model: nn.Module):
diff --git a/src/data/pipeline.py b/src/data/pipeline.py
index cbab3b6..7d8234e 100644
--- a/src/data/pipeline.py
+++ b/src/data/pipeline.py
@@ -308,7 +308,7 @@ class StockDataPipeline:
                     "high": row["High"],
                     "low": row["Low"],
                     "close": row["Close"],
-                    "adj_close": row["Adj Close"],
+                    "adj_close": row["Close"],  # auto_adjust=True, 'Close' is already adjusted
                     "volume": row["Volume"],
                 }
             )
@@ -382,37 +382,33 @@ class StockDataPipeline:
                 continue
 
     def _store_corporate_actions(self, ticker: str):
-        """Store corporate actions in the database"""
+        """Store corporate actions in the database using a single connection."""
         if ticker not in self.corporate_actions:
             return
 
         actions = self.corporate_actions[ticker]
+        rows = []
 
-        # Store splits
         for date, ratio in actions["splits"].items():
-            with sqlite3.connect(self.db_path) as conn:
-                cursor = conn.cursor()
-                cursor.execute(
-                    """
-                    INSERT OR REPLACE INTO corporate_actions
-                    (ticker, date, action_type, value, details)
-                    VALUES (?, ?, ?, ?, ?)
-                """,
-                    (ticker, date, "split", ratio, f"Split ratio: {ratio}"),
-                )
+            rows.append((ticker, date, "split", ratio, f"Split ratio: {ratio}"))
 
-        # Store dividends
         for date, amount in actions["dividends"].items():
-            with sqlite3.connect(self.db_path) as conn:
-                cursor = conn.cursor()
-                cursor.execute(
-                    """
-                    INSERT OR REPLACE INTO corporate_actions
-                    (ticker, date, action_type, value, details)
-                    VALUES (?, ?, ?, ?, ?)
+            rows.append(
+                (ticker, date, "dividend", amount, f"Dividend amount: {amount}")
+            )
+
+        if not rows:
+            return
+
+        with sqlite3.connect(self.db_path) as conn:
+            conn.executemany(
+                """
+                INSERT OR REPLACE INTO corporate_actions
+                (ticker, date, action_type, value, details)
+                VALUES (?, ?, ?, ?, ?)
                 """,
-                    (ticker, date, "dividend", amount, f"Dividend amount: {amount}"),
-                )
+                rows,
+            )
 
     def update_sector_data(self, tickers: List[str]):
         """Update sector data for given tickers with memory management"""
@@ -540,207 +536,242 @@ class StockDataPipeline:
         self.social_processor.fetch_twitter_data(tickers, start_date, end_date)
         self.social_processor.fetch_reddit_data(tickers, start_date, end_date)
 
-    def create_training_dataset(self) -> List:
+    def _compute_stock_sequence(
+        self, ticker: str, date, pit_data: Dict
+    ) -> Optional[np.ndarray]:
         """
-        Create a training dataset with alternative data features and AMD optimizations
+        Build a (SEQUENCE_LENGTH, NUM_FEATURES) float32 array for one stock at one date.
 
-        Returns:
-        List of PyG Data objects
+        NUM_FEATURES = 5 price + len(NEWS_FEATURES) + len(SOCIAL_FEATURES) + 1 corp action
+        """
+        price_df = self.price_data.get(ticker)
+        if price_df is None or price_df.empty:
+            return None
+
+        # Fetch enough history to compute SEQUENCE_LENGTH trading-day feature vectors
+        buf_start = date - timedelta(days=config.SEQUENCE_LENGTH * 2 + 60)
+        window = price_df.loc[buf_start:date]
+        if len(window) < 2:
+            return None
+
+        closes = window["Close"].values.astype(np.float64)
+        volumes = window["Volume"].values.astype(np.float64)
+
+        raw_returns = np.diff(closes) / (closes[:-1] + 1e-10)
+        n = len(raw_returns)
+
+        seq_rows: List[List[float]] = []
+        for i in range(n):
+            ret = float(raw_returns[i])
+            recent = raw_returns[max(0, i - 19) : i + 1]
+            vol = float(np.std(recent)) if len(recent) > 1 else 0.0
+            mom = float(np.mean(recent))
+            log_vol = float(np.log(volumes[i + 1] + 1))
+            norm_price = float(closes[i + 1] / (closes[0] + 1e-10) - 1)
+            seq_rows.append([ret, vol, mom, log_vol, norm_price])
+
+        seq_arr = np.array(seq_rows, dtype=np.float32)
+
+        # Trim to SEQUENCE_LENGTH (pad with zeros if history is too short)
+        if len(seq_arr) > config.SEQUENCE_LENGTH:
+            seq_arr = seq_arr[-config.SEQUENCE_LENGTH :]
+        elif len(seq_arr) < config.SEQUENCE_LENGTH:
+            pad = np.zeros(
+                (config.SEQUENCE_LENGTH - len(seq_arr), 5), dtype=np.float32
+            )
+            seq_arr = np.vstack([pad, seq_arr])
+
+        # News features (current date, broadcast across all timesteps)
+        date_str = date.strftime("%Y-%m-%d")
+        nf = self.news_processor.get_news_features(ticker, date_str)
+        news_vec = np.array(
+            [
+                nf.get("news_sentiment", 0.0),
+                nf.get("news_volume", 0.0),
+                nf.get("news_recency", 0.0),
+                nf.get("news_source_reliability", 0.0),
+                nf.get("news_topic_relevance", 0.0),
+            ],
+            dtype=np.float32,
+        )
+
+        # Social features (current date, broadcast)
+        sf = self.social_processor.get_social_features(ticker, date_str)
+        social_vec = np.array(
+            [
+                sf.get("twitter_sentiment", 0.0),
+                sf.get("twitter_volume", 0.0),
+                sf.get("reddit_sentiment", 0.0),
+                sf.get("reddit_volume", 0.0),
+                sf.get("social_momentum", 0.0),
+            ],
+            dtype=np.float32,
+        )
+
+        # Corporate action flag
+        corp_flag = 0.0
+        if pit_data["upcoming_actions"]:
+            soonest = min(pit_data["upcoming_actions"], key=lambda a: a["days_until"])
+            corp_flag = 1.0 if soonest["type"] == "split" else 2.0
+
+        alt_vec = np.concatenate([news_vec, social_vec, [corp_flag]])  # (11,)
+        alt_broadcast = np.tile(alt_vec, (config.SEQUENCE_LENGTH, 1))  # (seq_len, 11)
+
+        return np.concatenate([seq_arr, alt_broadcast], axis=1)  # (seq_len, 16)
+
+    def _build_edges(
+        self, tickers: List[str], date, pit_cache: Dict
+    ) -> Tuple[torch.Tensor, torch.Tensor]:
+        """Build same-sector edges with return-correlation weights."""
+        lookback_start = date - timedelta(days=config.LOOKBACK_WINDOW)
+        edge_index: List[List[int]] = []
+        edge_weight: List[float] = []
+
+        for i, t1 in enumerate(tickers):
+            for j, t2 in enumerate(tickers):
+                if j <= i:
+                    continue
+                s1 = pit_cache[t1].get("sector")
+                s2 = pit_cache[t2].get("sector")
+                if not s1 or not s2 or s1 != s2:
+                    continue
+                try:
+                    r1 = (
+                        self.price_data[t1]
+                        .loc[lookback_start:date]["Close"]
+                        .pct_change()
+                        .dropna()
+                    )
+                    r2 = (
+                        self.price_data[t2]
+                        .loc[lookback_start:date]["Close"]
+                        .pct_change()
+                        .dropna()
+                    )
+                    if len(r1) > 5 and len(r2) > 5:
+                        corr = float(r1.corr(r2))
+                        if not np.isnan(corr):
+                            edge_index.append([i, j])
+                            edge_weight.append(corr)
+                except Exception as e:
+                    logger.warning(f"Edge {t1}-{t2}: {e}")
+
+        if edge_index:
+            ei = torch.tensor(edge_index, dtype=torch.long).t().contiguous()
+            ew = torch.tensor(edge_weight, dtype=torch.float32).unsqueeze(1)
+        else:
+            ei = torch.empty((2, 0), dtype=torch.long)
+            ew = torch.empty((0, 1), dtype=torch.float32)
+        return ei, ew
+
+    def _next_trading_date(self, date) -> Optional[object]:
+        """Return the next date that has price data for at least one ticker."""
+        candidate = date + timedelta(days=1)
+        for _ in range(7):
+            for ticker in self.price_data.values():
+                if not ticker.empty and candidate in ticker.index:
+                    return candidate
+            candidate += timedelta(days=1)
+        return None
+
+    def _create_dataset(self, start_date: str, end_date: str) -> List:
+        """
+        Core dataset builder producing PyG Data objects with 3-D node features.
+
+        x shape per object: (num_stocks, SEQUENCE_LENGTH, NUM_FEATURES)
+        where NUM_FEATURES = 5 price + 5 news + 5 social + 1 corp_action = 16
         """
         from torch_geometric.data import Data
 
-        logger.info("Creating training dataset with AMD optimizations")
-        dates = pd.date_range(config.START_DATE, config.TRAIN_END_DATE)
+        all_tickers = config.INITIAL_TICKERS + list(self.delisted_tickers)
+        dates = pd.bdate_range(start_date, end_date)  # business days only
         dataset = []
 
-        for date in tqdm(dates, desc="Creating dataset"):
-            # Check memory before processing date
-            if not self.memory_manager.ensure_memory(500 * 1024**2):  # 500MB
-                logger.warning(f"Skipping {date.date()} due to memory constraints")
+        for date in tqdm(dates, desc=f"Dataset {start_date}→{end_date}"):
+            if not self.memory_manager.ensure_memory(500 * 1024**2):
+                logger.warning(f"Skipping {date.date()} — low memory")
                 self.memory_manager.empty_cache()
                 continue
 
-            # Get current universe of stocks
-            current_tickers = []
-            for ticker in config.INITIAL_TICKERS + list(self.delisted_tickers):
-                if ticker in self.price_data and not self.price_data[ticker].empty:
-                    if (
-                        date >= self.price_data[ticker].index[0]
-                        and date <= self.price_data[ticker].index[-1]
-                    ):
-                        current_tickers.append(ticker)
-
-            # Skip if no stocks available
-            if not current_tickers:
+            # Stocks with price data spanning this date
+            valid_tickers = [
+                t
+                for t in all_tickers
+                if t in self.price_data
+                and not self.price_data[t].empty
+                and self.price_data[t].index[0] <= date <= self.price_data[t].index[-1]
+            ]
+            if not valid_tickers:
                 continue
 
-            # Create node features
-            node_features = []
-            corporate_action_flags = []
+            # Pre-fetch PIT data once per ticker (avoids O(n²) repeated calls)
+            pit_cache = {
+                t: self.get_point_in_time_data(t, date) for t in valid_tickers
+            }
 
-            for ticker in current_tickers:
-                # Check memory before processing ticker
-                if not self.memory_manager.ensure_memory(10 * 1024**2):  # 10MB
-                    logger.warning(f"Skipping {ticker} due to memory constraints")
+            # Build 3-D node feature matrix
+            node_sequences: List[np.ndarray] = []
+            node_tickers: List[str] = []
+            for ticker in valid_tickers:
+                if not self.memory_manager.ensure_memory(10 * 1024**2):
                     continue
-
                 try:
-                    # Get price data for lookback period
-                    lookback_start = date - timedelta(days=config.LOOKBACK_WINDOW)
-                    price_data = self.price_data[ticker].loc[lookback_start:date]
-
-                    if (
-                        len(price_data) < 5
-                    ):  # Need at least 5 days for meaningful features
-                        # Use default values
-                        features = [
-                            0,
-                            0,
-                            0,
-                            0,
-                            0,
-                        ]  # [return, volatility, momentum, volume, price]
-                    else:
-                        returns = price_data["Adj Close"].pct_change().dropna()
-                        features = [
-                            returns.iloc[-1],  # Last return
-                            returns.std(),  # Volatility
-                            returns.mean(),  # Momentum
-                            np.log(price_data["Volume"].iloc[-1] + 1),  # Log volume
-                            price_data["Adj Close"].iloc[-1],  # Last price
-                        ]
-
-                    node_features.append(features)
-
-                    # Get corporate action flag
-                    pit_data = self.get_point_in_time_data(ticker, date)
-                    flag = 0
-                    if pit_data["upcoming_actions"]:
-                        # Use the type of the soonest upcoming action
-                        soonest = min(
-                            pit_data["upcoming_actions"],
-                            key=lambda x: x["days_until"],
-                        )
-                        if soonest["type"] == "split":
-                            flag = 1
-                        elif soonest["type"] == "dividend":
-                            flag = 2
-
-                    corporate_action_flags.append(flag)
-
+                    seq = self._compute_stock_sequence(ticker, date, pit_cache[ticker])
+                    if seq is not None:
+                        node_sequences.append(seq)
+                        node_tickers.append(ticker)
                 except Exception as e:
-                    logger.warning(
-                        f"Error processing {ticker} for {date.date()}: {str(e)}"
-                    )
-                    continue
+                    logger.warning(f"Sequence error {ticker} {date.date()}: {e}")
 
-            # Skip if no features were created
-            if not node_features:
+            if not node_sequences:
                 continue
 
-            # Convert to tensors
-            x = torch.tensor(node_features, dtype=torch.float32)
+            # x: (num_stocks, seq_len, num_features)
+            x = torch.tensor(np.array(node_sequences), dtype=torch.float32)
 
-            # Add corporate action flags as additional features
-            corporate_action_tensor = torch.tensor(
-                corporate_action_flags, dtype=torch.float32
-            ).unsqueeze(1)
-            x = torch.cat([x, corporate_action_tensor], dim=1)
+            # Cross-sectional z-score per feature per time step (normalise across stocks)
+            mean = x.mean(dim=0, keepdim=True)
+            std = x.std(dim=0, keepdim=True).clamp(min=1e-8)
+            x = (x - mean) / std
 
-            # Create edges based on sector relationships
-            edge_index = []
-            edge_weight = []
+            # Build graph edges
+            edge_index, edge_weight = self._build_edges(node_tickers, date, pit_cache)
 
-            for i, ticker1 in enumerate(current_tickers):
-                for j, ticker2 in enumerate(current_tickers):
-                    if i < j:
-                        # Check memory before processing edge
-                        if not self.memory_manager.ensure_memory(1 * 1024**2):  # 1MB
-                            logger.warning(
-                                "Skipping edge creation due to memory constraints"
-                            )
-                            continue
-
-                        try:
-                            # Get sector data
-                            pit1 = self.get_point_in_time_data(ticker1, date)
-                            pit2 = self.get_point_in_time_data(ticker2, date)
-
-                            # Create edge if same sector
-                            if (
-                                pit1["sector"]
-                                and pit2["sector"]
-                                and pit1["sector"] == pit2["sector"]
-                            ):
-                                # Calculate correlation as edge weight
-                                lookback_start = date - timedelta(
-                                    days=config.LOOKBACK_WINDOW
-                                )
-                                returns1 = (
-                                    self.price_data[ticker1]
-                                    .loc[lookback_start:date]["Adj Close"]
-                                    .pct_change()
-                                )
-                                returns2 = (
-                                    self.price_data[ticker2]
-                                    .loc[lookback_start:date]["Adj Close"]
-                                    .pct_change()
-                                )
-
-                                if len(returns1) > 5 and len(returns2) > 5:
-                                    corr = returns1.corr(returns2)
-                                    if not np.isnan(corr):
-                                        edge_index.append([i, j])
-                                        edge_weight.append(corr)
-                        except Exception as e:
-                            logger.warning(
-                                f"Error creating edge between {ticker1} and {ticker2}: {str(e)}"
-                            )
-                            continue
-
-            # Convert to tensors
-            edge_index = (
-                torch.tensor(edge_index, dtype=torch.long).t()
-                if edge_index
-                else torch.empty((2, 0), dtype=torch.long)
-            )
-            edge_weight = (
-                torch.tensor(edge_weight, dtype=torch.float32).unsqueeze(1)
-                if edge_weight
-                else torch.empty((0, 1), dtype=torch.float32)
-            )
-
-            # Create target (next day's return)
-            y = []
-            for ticker in current_tickers:
-                next_date = date + timedelta(days=1)
+            # Build targets: next trading day's return for each stock
+            next_date = self._next_trading_date(date)
+            y_vals: List[float] = []
+            for ticker in node_tickers:
                 if (
-                    ticker in self.price_data
+                    next_date is not None
+                    and ticker in self.price_data
                     and next_date in self.price_data[ticker].index
+                    and date in self.price_data[ticker].index
                 ):
-                    ret = (
-                        self.price_data[ticker].loc[next_date]["Adj Close"]
-                        / self.price_data[ticker].loc[date]["Adj Close"]
+                    ret = float(
+                        self.price_data[ticker].loc[next_date]["Close"]
+                        / self.price_data[ticker].loc[date]["Close"]
                         - 1
                     )
-                    y.append(ret)
                 else:
-                    y.append(0)  # Default value
+                    ret = 0.0
+                y_vals.append(ret)
 
-            y = torch.tensor(y, dtype=torch.float32).unsqueeze(1)
+            y = torch.tensor(y_vals, dtype=torch.float32).unsqueeze(1)
 
-            # Create Data object
             data = Data(x=x, edge_index=edge_index, edge_attr=edge_weight, y=y)
             data.date = date
-            data.tickers = current_tickers
-
+            data.tickers = node_tickers
             dataset.append(data)
 
-            # Memory management
             self.memory_manager.auto_manage_memory(threshold=0.7)
 
         return dataset
 
+    def create_training_dataset(self) -> List:
+        """Create the training dataset for config.START_DATE → config.TRAIN_END_DATE."""
+        logger.info("Creating training dataset")
+        return self._create_dataset(config.START_DATE, config.TRAIN_END_DATE)
+
     def create_intraday_dataset(
         self, tickers: List[str], start_date: str, end_date: str
     ) -> List:
@@ -825,12 +856,12 @@ class StockDataPipeline:
                         if isinstance(daily_data, pd.Series):
                             # If only one day of data, create a sequence with the same values
                             features = [
-                                daily_data["Adj Close"] / daily_data["Open"]
+                                daily_data["Close"] / daily_data["Open"]
                                 - 1,  # Return
                                 0.2,  # Volatility (placeholder)
                                 0.0,  # Momentum (placeholder)
                                 np.log(daily_data["Volume"] + 1),  # Log volume
-                                daily_data["Adj Close"],  # Price
+                                daily_data["Close"],  # Price (auto_adjust=True)
                             ]
 
                             # Repeat for the sequence
@@ -895,12 +926,12 @@ class StockDataPipeline:
                                     ) - timedelta(days=config.LOOKBACK_WINDOW)
                                     returns1 = (
                                         self.price_data[ticker1]
-                                        .loc[lookback_start:date]["Adj Close"]
+                                        .loc[lookback_start:date]["Close"]
                                         .pct_change()
                                     )
                                     returns2 = (
                                         self.price_data[ticker2]
-                                        .loc[lookback_start:date]["Adj Close"]
+                                        .loc[lookback_start:date]["Close"]
                                         .pct_change()
                                     )
 
@@ -938,10 +969,10 @@ class StockDataPipeline:
                         and next_date.strftime("%Y-%m-%d")
                         in self.price_data[ticker].index
                     ):
-                        current_price = self.price_data[ticker].loc[date]["Adj Close"]
+                        current_price = self.price_data[ticker].loc[date]["Close"]
                         future_price = self.price_data[ticker].loc[
                             next_date.strftime("%Y-%m-%d")
-                        ]["Adj Close"]
+                        ]["Close"]
                         ret = future_price / current_price - 1
                         y.append(ret)
                     else:
@@ -993,7 +1024,7 @@ class StockDataPipeline:
             price_data = self.price_data[ticker]
             idx = price_data.index.get_indexer([date], method="ffill")[0]
             if idx >= 0:
-                result["price"] = price_data.iloc[idx]["Adj Close"]
+                result["price"] = price_data.iloc[idx]["Close"]
 
         # Get sector data
         if ticker in self.sector_data:
@@ -1117,15 +1148,12 @@ class StockDataPipeline:
             "volatility": 0.2,  # Placeholder - would calculate from intraday data
             "momentum": 0.0,  # Placeholder
             "volume": np.log(price_data["Volume"] + 1),
-            "price": price_data["Adj Close"],
+            "price": price_data["Close"],
         }
 
         return features
 
     def create_validation_dataset(self, start_date: str, end_date: str) -> List:
-        """
-        Create a validation dataset (placeholder - reuses training logic)
-        """
-        # For simplicity, reuse create_training_dataset logic with a different date range
-        # In a real implementation, this would be more sophisticated
-        return self.create_training_dataset()
+        """Create a validation dataset for the given date range."""
+        logger.info(f"Creating validation dataset {start_date} → {end_date}")
+        return self._create_dataset(start_date, end_date)
diff --git a/src/evaluation/backtester.py b/src/evaluation/backtester.py
index 428dcfb..bbec96a 100644
--- a/src/evaluation/backtester.py
+++ b/src/evaluation/backtester.py
@@ -3,7 +3,8 @@ Backtesting framework for the GNN trading strategy.
 """
 
 import logging
-from typing import Dict, List, Tuple
+from datetime import timedelta
+from typing import Dict, List, Optional, Tuple
 
 import pandas as pd
 
@@ -22,6 +23,30 @@ class GNNBacktester:
         self.pipeline = pipeline
         self.broker = PaperTradingBroker(initial_cash=config.INITIAL_CAPITAL)
 
+    def _get_current_price(self, ticker: str, date) -> Optional[float]:
+        """Look up the adjusted close price for a ticker on a given date."""
+        price_df = self.pipeline.price_data.get(ticker)
+        if price_df is None or price_df.empty:
+            return None
+        try:
+            if date in price_df.index:
+                return float(price_df.loc[date]["Close"])
+            idx = price_df.index.get_indexer([date], method="ffill")[0]
+            if idx >= 0:
+                return float(price_df.iloc[idx]["Close"])
+        except Exception:
+            pass
+        return None
+
+    def _portfolio_value(self, date) -> float:
+        """Compute total portfolio value using current market prices."""
+        total = self.broker.cash
+        for ticker, qty in self.broker.positions.items():
+            price = self._get_current_price(ticker, date)
+            if price:
+                total += qty * price
+        return total
+
     def run_backtest(self, dataset: List) -> Tuple[pd.Series, List]:
         """Run a backtest on the given dataset."""
         logger.info(f"Starting backtest with {len(dataset)} samples")
@@ -31,30 +56,36 @@ class GNNBacktester:
         trade_log = []
 
         for data in dataset:
-            # Get predictions
-            predictions = self.model(data)
+            date = getattr(data, "date", None)
+
+            # Move data to the same device as the model
+            data_device = data.to(config.DEVICE)
+
+            with __import__("torch").no_grad():
+                predictions = self.model(data_device)
 
-            # Simulate trading based on predictions
             for i, ticker in enumerate(data.tickers):
                 pred = predictions[i].item()
+                price = self._get_current_price(ticker, date)
+
+                if price is None or price <= 0:
+                    continue
 
                 if pred > 0.002:
                     order = {
                         "ticker": ticker,
                         "action": "buy",
                         "quantity": 100,
-                        "price": 100,  # placeholder
-                        "timestamp": str(getattr(data, "date", "")),
+                        "price": price,
+                        "timestamp": str(date),
                         "type": "market",
                     }
                     order_id = self.broker.submit_order(order)
                     if order_id:
                         trade_log.append({**order, "order_id": order_id})
 
-            # Record portfolio value
-            account = self.broker.get_account_summary()
-            portfolio_values.append(account["total_value"])
-            dates.append(getattr(data, "date", None))
+            portfolio_values.append(self._portfolio_value(date))
+            dates.append(date)
 
         portfolio_series = pd.Series(portfolio_values, index=dates)
         logger.info("Backtest completed")
diff --git a/src/models/intraday_gnn.py b/src/models/intraday_gnn.py
index 5791da6..30c70d3 100644
--- a/src/models/intraday_gnn.py
+++ b/src/models/intraday_gnn.py
@@ -132,19 +132,8 @@ class IntradayGNN(nn.Module):
         x, edge_index, edge_attr = data.x, data.edge_index, data.edge_attr
 
         # x shape: (num_stocks, sequence_length, num_features)
-        batch_size, seq_len, num_features = x.size()
-
-        # Apply temporal attention to each stock's sequence
-        temporal_features = []
-        for i in range(batch_size):
-            stock_sequence = x[i].unsqueeze(0)  # (1, sequence_length, num_features)
-            temporal_feature = self.temporal_attention(stock_sequence)
-            temporal_features.append(temporal_feature)
-
-        # Stack temporal features
-        temporal_features = torch.cat(
-            temporal_features, dim=0
-        )  # (num_stocks, feature_dim)
+        # TemporalAttention expects (batch, seq_len, feature_dim) — pass all stocks at once
+        temporal_features = self.temporal_attention(x)  # (num_stocks, feature_dim)
 
         # Process features
         processed_features = self.feature_processor(temporal_features)
diff --git a/src/trading/paper_broker.py b/src/trading/paper_broker.py
index cea115a..d437fd7 100644
--- a/src/trading/paper_broker.py
+++ b/src/trading/paper_broker.py
@@ -18,6 +18,7 @@ class PaperTradingBroker(Broker):
     def __init__(self, initial_cash: float = 100000.0):
         self.cash = initial_cash
         self.positions = {}
+        self.position_prices = {}  # fill price per ticker for valuation
         self.orders = {}
         self.transaction_cost = config.TRANSACTION_COST
 
@@ -39,6 +40,7 @@ class PaperTradingBroker(Broker):
                 return None
             self.cash -= cost
             self.positions[ticker] = self.positions.get(ticker, 0) + quantity
+            self.position_prices[ticker] = price
         elif action == "sell":
             if self.positions.get(ticker, 0) < quantity:
                 logger.warning(f"Insufficient shares for sell order: {order_id}")
@@ -48,6 +50,7 @@ class PaperTradingBroker(Broker):
             self.positions[ticker] -= quantity
             if self.positions[ticker] == 0:
                 del self.positions[ticker]
+                self.position_prices.pop(ticker, None)
 
         logger.info(
             f"Paper order filled: {order_id} - {action} {quantity} {ticker} @ {price}"
@@ -70,11 +73,12 @@ class PaperTradingBroker(Broker):
         return self.positions.copy()
 
     def get_account_summary(self) -> Dict:
-        """Get simulated account summary."""
-        total_value = self.cash + sum(
-            self.positions.get(t, 0) * 100  # placeholder price
-            for t in self.positions
+        """Get simulated account summary using fill prices for position valuation."""
+        position_value = sum(
+            qty * self.position_prices.get(ticker, 0)
+            for ticker, qty in self.positions.items()
         )
+        total_value = self.cash + position_value
         return {
             "cash": self.cash,
             "positions": self.positions.copy(),
diff --git a/src/utils/memory_manager.py b/src/utils/memory_manager.py
index 534e04d..f937b23 100644
--- a/src/utils/memory_manager.py
+++ b/src/utils/memory_manager.py
@@ -1,5 +1,6 @@
 import gc
 import logging
+import time
 from typing import Any, Dict, Optional
 
 import torch
diff --git a/src/web/api/data_endpoints.py b/src/web/api/data_endpoints.py
index 3238d28..b9746be 100644
--- a/src/web/api/data_endpoints.py
+++ b/src/web/api/data_endpoints.py
@@ -101,7 +101,7 @@ async def get_price(ticker: str) -> Dict:
         "high": latest["High"],
         "low": latest["Low"],
         "close": latest["Close"],
-        "adj_close": latest["Adj Close"],
+        "adj_close": latest["Close"],  # auto_adjust=True; Close is already adjusted
         "volume": int(latest["Volume"]),
     }