Statistical Arbitrage

objective

Execute statistical arbitrage work with reproducible research, explicit controls, and deployable outputs.

workflow

1. define hypothesis, trade horizon, and capital-allocation constraints.
2. build leak-safe features and align targets to executable decision times.
3. estimate signal edge, turnover impact, and capacity limits.
4. stress performance across volatility, liquidity, and crowding regimes.
5. promote only when net performance remains robust after full trading costs.

required diagnostics

• signal monotonicity, decay profile, and hit-rate stability.
• capacity stress from participation growth and liquidity depletion.
• regime dependency and edge persistence after parameter shifts.
• cost-adjusted performance versus naive and benchmark alternatives.
• cointegration breakdown and half-life drift across regimes
• borrow, financing, and short-availability stress