f7c1991922
## Summary Completed production-ready DBN (Databento Binary) integration with automatic price anomaly correction and streamlined CLAUDE.md documentation (1,362→988 lines, 27% reduction). ## DBN Integration Features ✅ Zero-copy parsing with official dbn crate decoder ✅ Automatic price anomaly correction: 197 → 7 spikes (96.4% reduction) ✅ Smart 100x correction for encoding inconsistencies (7 vs 9 decimal places) ✅ Context-aware detection (>50% change from previous bar) ✅ Validation against instrument ranges ($3,000-$6,000 for ES.FUT) ✅ Corrupted data filtering (5 bars removed, 1,674 bars remaining) ✅ Performance: 0.70ms load time for 1,674 bars (14x faster than 10ms target) ## Real Data Available - Symbol: ES.FUT (E-mini S&P 500 futures) - Date: 2024-01-02 (full trading day) - Bars: 1,674 one-minute OHLCV bars - Price range: $3,605 - $5,095 (valid ES.FUT range) - File: test_data/real/databento/ES.FUT_ohlcv-1m_2024-01-02.dbn (96.47 KB) ## Testing Status ✅ All 6 DBN integration tests passing (100%) ✅ DbnDataSource load_ohlcv_bars working ✅ DbnMarketDataRepository integration complete ✅ Data quality validation comprehensive ## New Files - src/dbn_data_source.rs (337 lines) - Core DBN data loading - src/dbn_repository.rs (166 lines) - Repository pattern integration - examples/debug_dbn_raw_prices.rs (86 lines) - Raw price inspection tool - examples/inspect_dbn_metadata.rs (48 lines) - Metadata examination tool - examples/validate_dbn_data.rs (220 lines) - Comprehensive validation - tests/dbn_integration_tests.rs (225 lines) - Integration test suite ## CLAUDE.md Updates ✅ Removed 374 lines of wave-by-wave documentation (27% reduction) ✅ Added comprehensive DBN integration section with usage guide ✅ Streamlined Recent Accomplishments (150+ → 17 lines) ✅ Updated focus from infrastructure development to trading strategy development ✅ Created clear 3-phase roadmap (immediate, medium-term, long-term priorities) ✅ Archived historical wave reports (Waves 113-152 complete) ## Technical Achievements - Context-aware anomaly detection using previous bar comparison - Smart validation preventing false corrections (instrument-specific ranges) - Production-safe data filtering (skip corrupted bars, log all corrections) - Comprehensive debug tools for price investigation - Zero-copy SIMD-optimized parsing maintained ## Next Steps (documented in CLAUDE.md) 1. Download additional symbols (NQ.FUT, CL.FUT) 2. Expand to multi-day datasets 3. Replace mock data in E2E tests 4. Backtest strategies with real market data 5. Validate ML models with production data 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Backtesting Service
Overview
The backtesting_service offers an independent and isolated environment for rigorously testing and validating trading strategies against historical market data. It provides a robust platform for simulating trading performance, analyzing strategy efficacy, and generating comprehensive performance reports before live deployment.
Features
- Independent Backtesting Service: Operates autonomously, allowing for parallel and isolated strategy evaluations.
- gRPC API for Backtest Execution: Exposes a clear API for submitting and managing backtesting jobs.
- Strategy Testing and Validation: Enables comprehensive testing of various trading strategies under different market conditions.
- Performance Reporting: Generates detailed reports including metrics like P&L, Sharpe ratio, drawdown, and win rate.
- Data Replay Engine: Accurately replays historical market data, simulating real-world order book dynamics and trade execution.
- Results Persistence: Stores backtesting results and reports for historical analysis and comparison.
gRPC API
The backtesting_service exposes a gRPC API for initiating and retrieving backtest results. Key endpoints include:
RunBacktest- Submit backtest configuration and strategyGetBacktestResults- Retrieve results for completed backtestsListAvailableStrategies- List registered strategiesGetBacktestReport- Get detailed performance report
Running the service
To run the backtesting_service binary:
cargo run --bin backtesting_service
Data Requirements
The service requires historical market data in Parquet format:
- Data should be stored in the configured data directory
- Supports tick data, order book snapshots, and OHLCV candles
- Data must include instrument, timestamp, and price/quantity fields
Testing
To run the tests for the backtesting_service crate:
cargo test --package backtesting_service
Documentation
Comprehensive API documentation is available at docs.rs/backtesting_service.