# Regime Lite Promotion Decision (2026-04-24)

- change: `adaptive-hold-promotion-evaluation`
- input PIT: `outputs/ingestion_derived_full50_20260409_v2/pit/chinext50_pit.csv`
- discovery window: `2020-01-02` to `2024-09-09` (`1138` rows)
- validation window: `2024-09-10` to `2026-04-09` (`379` rows)
- recommendation candidate: `combo_fast_hold3`
- promotion status vs baseline: `promote`
- current promoted reference: `promoted_fast_entry_hold3`
- adaptive replace conclusion: `adaptive-replace-candidate`
- final preferred profile action: `replace_current_promoted`
- final preferred runtime profile: `promoted_fast_entry_adaptive_extend`
- final preferred variant: `combo_fast_adaptive_extend`

Adaptive replace delta vs current promoted reference:
- annual_return: `+0.001646`
- max_drawdown: `+0.000000`
- annual_turnover: `+0.000000`
- avg_days_to_reach_exposure_after_trend_entry: `+0.000000`

Bounded runtime verification on final preferred profile:
- runtime profile: `promoted_fast_entry_adaptive_extend`
- rollback/reference profile: `baseline`
- runtime health: `healthy`
- runtime recommended action: `continue`
- post-promotion review: `recommend_rollback`

Operator conclusion:
- The old preferred profile `promoted_fast_entry_hold3` is replaced by `promoted_fast_entry_adaptive_extend` in the bounded promotion closure.
- Keep `baseline` available as the rollback-safe reference profile.
- Governance handoff target after promotion closure: run `promoted_fast_entry_adaptive_extend`, then inspect `regime_lite_runtime_health.json` and `regime_lite_post_promotion_review.json` before any operator action.
- If runtime health stays `healthy` and post-promotion review stays `keep_promoted`, continue normal lite operation.
- If runtime health moves to `review` / `hold` or post-promotion review moves to `hold_and_review`, pause and inspect the bounded reasons before changing anything.
- If runtime health reaches `rollback_recommended` or post-promotion review reaches `recommend_rollback`, revert to `baseline` for rollback-safe operation.
- Do not add new variants or reopen broad lite timing/overlay tuning from this closure step.