ReportRandom-Horizon Trading

t1-1generated 2026-08-27 21:22 UTC

Cell

{"exit": "uniform", "info": "K", "probe": true, "prompt": "table", "history": "compressed", "temperature": 0.0, "thinking_budget": null}

Headline results

Regret is measured against an exactly-solved optimal policy, verified by brute-force enumeration and Monte-Carlo rollout.

Episodes200
V* (optimal expected wealth)1.46230
Mean terminal wealth1.46623
Regret-0.00393
Regret as % of V*-0.27%
Clock coefficient-0.01330
Mean switches per episode1.90
Trade alignment0.990
Event-timing lift0.000
Mean belief error (days)0.38

Switch-day distribution

When the agent traded. The marker is the bright line at day 11, where the optimal action changes.

200150100500.00d110102030405060708090100episode day

Belief calibration

Mean absolute error between the agent's stated expected days remaining and the true conditional mean. Separates belief-formation failures from belief-to-action failures.

0.500.380.250.130.00d11episode day
belief error (days)

Ground truth: expected remaining time

The quantity the agent's beliefs are scored against.

503825120.00d11episode day
E[T-t | T>t]