Immutable research result
Put Credit Vertical — Weekly
Training and validation use consecutive frozen historical stages. Missing or incomplete option lifecycles were skipped rather than priced by proxy.
Stage evidence
| Stage | ROI | Adverse ROI | Win rate | Profit factor | Sharpe | Max drawdown |
|---|---|---|---|---|---|---|
| Training26 completed, 0 skipped | −2.04% | −3.39% | +57.69% | 0.35 | -0.27 | −4.63% |
| Validation6 completed, 0 skipped | −0.08% | −0.28% | +50.00% | 0.88 | -0.10 | −0.47% |
RESEARCH RECORD ID
fba0847769ce…
The strategy, protocol, data snapshots, costs and deterministic assumptions are fingerprinted together.
PAPER-OBSERVATION DECISION
Historical evidence unfavorable
Validation ROI, adverse-cost ROI, or Sharpe was not positive. The blocker is observed performance, not merely data volume, so this version is not approved for paper observation.