R0637: PASS

Descriptive statistics, no trading costs in the probabilities (the backtest columns alone use estimated costs). Rules were discovered and tuned on 2022-01 → 2024-12 only, frozen, then tested once on 2025-01 → 2026-10. Millions of hypotheses were searched, so read the corrected p-values and the out-of-sample columns, not the training hit rates. Not investment advice; not a trading system.

Rule: When size of the move from the open to 11:00 (either direction) ≥ 0.50% (≈126 pts at 25,000) AND distance from TWAP in the move's direction ≥ +0.19% (≈+48 pts at 25,000) AND price has already touched the prior-day high at 11:00

Target: the day closes more than 100 pts beyond the open in the direction of the move so far · Decision time: 11:00 IST (uses bars up to 11:00 only) · Method: subgroup · Family: level / structure

86%train hit (n=35) vs base 35% · lift 2.48

83%OOS hit (n=24) vs base 41% · lift 2.06

[64%–93%]OOS Wilson 95% CI

1.7e-04OOS BH q (all) · family BH q 1.0e-04 · Holm 0.019

5.0e-04OOS matched-random placebo p

Verdict criteria

✔ Out-of-sample lift in the same direction as train
✔ OOS Wilson 95% CI excludes the OOS base rate
✔ OOS BH q ≤ 0.05 across all candidates tested OOS AND within its target family
✔ Train BH q ≤ 0.05 (across all hypotheses searched)
✔ Stable by year (same direction in ≥80% of years with ≥10 days, incl. every OOS year with ≥10)
✔ OOS matched-random placebo p ≤ 0.05
✔ OOS sample ≥ 20 days

Train p 1.3e-09; train BH q 2.9e-07; train Holm 0.012 (corrections over all 9,242,869 hypotheses); whole-pipeline shuffled-label placebo family-wise p 0.010 (100 permutations). Extra conditions beat the best single condition OOS: True.

By year

year	rule days	hit	base (all days)	lift
2022	15	87%	39%	2.24
2023	3	100%	25%	3.95
2024	17	82%	40%	2.07
2025 (OOS)	16	88%	44%	2.01
2026 (OOS)	8	75%	37%	2.05

Spot-points backtest (estimated costs)

enter at 11:00 price in the move direction; stop 0.4% of entry; exit at close. Costs: Nifty futures round-trip model from nifty-setups-backtest/src/costs.py (brokerage, exchange, SEBI, stamp, GST, STT by date: 0.0125% → 0.02% from Oct-2024 → 0.05% from Apr-2026) + 0.5 pt slippage per side; spot used as a futures proxy (basis ignored); stop-first on ambiguous bars.

window	trades	win rate	avg net pts	avg gross pts	total net	max DD pts	PF
train 2022–24 (in-sample)	35	57%	+48.7	+54.9	+1704.4	+264.2	+2.6
OOS 2025–26	24	54%	-2.7	+6.8	-65.5	+547.0	+0.9

equity curve

trades.csv · Generated 2026-10-10 00:44 IST.