Charted notes on expectancy calculation in trading automation: mechanics, waypoints, and the wrecks recorded in production.
Mechanics
expectancy calculation works as a staged transformation — ingest, measure, decide, route. Each stage carries its own failure surface.
Waypoints (Configuration)
Configuring expectancy calculation comes down to a short list of parameters. Vendor defaults fit demonstrations; live deployment deserves its own pass.
Wreck Record (Failure Modes)
The wreck record for expectancy calculation teaches more than the success story. Regime shifts, infrastructure faults, and drift lead the list.
Navigation Checks (Evaluation)
Test expectancy calculation with fixed, look-ahead-free evaluations, then stress the operations side before trusting it live.
Configuration Reference
# Expectancy Calculation tested configuration mode: production timeframe: auto risk_limits: max_drawdown: 15 percent max_position: 3 percent monitoring: alert_threshold: 0.5 report_interval: hourly
Parameter Impact
| Parameter | Effect | Trade-off |
|---|---|---|
| timeframe | Signal frequency | Higher means fewer but more reliable signals |
| risk_limit | Maximum exposure | Lower means safer but slower returns |
| lookback | Indicator sensitivity | Longer means smoother but lagging |