jgrusewski 1e8188c947 refactor(per-horizon): N_HORIZONS 5→3, HORIZONS=[10,100,1000] — library + data layer
First commit of the horizon-rebase refactor (full plan at
docs/superpowers/plans/2026-05-22-horizon-rebase-n3.md). Motivated by
empirical evidence from this session's investigations:

- C1: ES MBP-10 input ACF dies by L=300; K=1000/6000 are below noise floor
- D3: binarized labels ρ(30,6000)=0.06; K=6000 carries no signal
- Heads_w1 mask experiment: h6000 AUC collapsed 0.73→0.54, confirming
  long-horizon prediction needs cross-channel integration that 5-horizon
  bucket structure couldn't provide

New horizon set [10, 100, 1000] matches C1's empirical autocorrelation
elbows (~50ms, ~3.5s, ~45s wall-clock at 74µs median Δt).

Scope of this commit:
- crates/ml-alpha/src/heads.rs: N_HORIZONS 5→3, HORIZONS=[10,100,1000]
- crates/ml-alpha/src/cfc/bucket_routing.rs: MAX_BUCKET_DIM 28→96,
  BUCKET_DIM_K=[43,43,42], BUCKET_CHANNEL_OFFSET=[0,43,86,128]
- crates/ml-alpha/src/data/loader.rs: 5 hardcoded [T;5] types migrated
- crates/ml-backtesting/src/sim/mod.rs: broadcast_alpha signature,
  local N_HORIZONS re-exports ml_alpha::heads::N_HORIZONS
- crates/ml-backtesting/src/harness.rs: local N_HORIZONS re-export,
  per-horizon log labels, MultiHorizonLoaderConfig.horizons

Tests + examples + CUDA kernels still need migration (subsequent commits
per plan tasks 2-8).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-22 00:56:16 +02:00

Foxhunt

Production HFT trading system in Rust.

Architecture

The workspace contains 32 crates organized as follows:

Core Libraries (16)

Crate Purpose
trading_engine Order processing, FIX 4.4, IB TWS, SIMD, RDTSC timing
risk VaR, Kelly, circuit breakers, kill switches, compliance
risk-data Risk data types and shared structures
trading-data Trading data types
ml DQN Rainbow, PPO, TFT, Mamba2, ensemble inference
ml-data ML data types and feature definitions
data Market data ingestion and storage
backtesting Replay engine, strategy tester
adaptive-strategy Ensemble execution, microstructure analysis
common Shared types, resilience, error handling
storage S3 and local model storage
model_loader Model serialization and loading
market-data Market data feed handlers
database PostgreSQL access layer (SQLx)
config Configuration management
tli CLI commands and tooling

Services (8)

Service Purpose
backtesting_service gRPC backtesting service
broker_gateway_service FIX routing, broker connectivity
trading_service Core trading operations
ml_training_service Model training orchestration
data_acquisition_service Market data acquisition
trading_agent_service Autonomous trading agents
api_gateway gRPC API gateway with auth
web-gateway Axum REST + WebSocket gateway

Frontend

web-dashboard/ -- React 19 + TypeScript + Vite + TradingView charts.

Building

# Check compilation (no PostgreSQL required)
SQLX_OFFLINE=true cargo check --workspace

# Run tests for a specific crate
SQLX_OFFLINE=true cargo test -p <crate> --lib

# Clippy
SQLX_OFFLINE=true cargo clippy --workspace

ML Models

Four production model architectures on Candle v0.9.1 with CUDA:

  • DQN Rainbow -- Deep Q-Network with prioritized replay, dueling heads, noisy nets
  • PPO -- Proximal Policy Optimization with GAE and LSTM policies
  • TFT -- Temporal Fusion Transformer for multi-horizon forecasting
  • Mamba2 -- State space model for sequence prediction

Each model has a standalone trainer and a UnifiedTrainable adapter for the hyperopt pipeline.

Infrastructure

  • Git: Gitea at git.fxhnt.ai (Tailscale-only), Scaleway DEV1-S
  • Observability: OpenTelemetry OTLP (env OTEL_EXPORTER_OTLP_ENDPOINT)
  • Database: PostgreSQL with SQLx offline mode for CI

License

Proprietary. All rights reserved.

Description
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Python 1.3%
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