R0287: WATCH

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 price vs prior-day low ≥ +1.07% (≈+269 pts at 25,000) AND CPR width ≥ 0.20% (≈51 pts at 25,000) AND 1-min EMA9 − EMA21 (as % of price) ≥ +0.09% (≈+22 pts at 25,000) at 09:30

Target: price reaches the prior-day low after 09:30 (days not yet at PDL) · Decision time: 09:30 IST (uses bars up to 09:30 only) · Method: subgroup · Family: level / structure

0%train hit (n=56) vs base 28% · lift 0.00

0%OOS hit (n=17) vs base 26% · lift 0.00

[0%–18%]OOS Wilson 95% CI

0.018OOS BH q (all) · family BH q 0.011 · Holm 1.000

0.014OOS 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 2.7e-08; train BH q 4.1e-06; train Holm 0.250 (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: False.

By year

year	rule days	hit	base (all days)
2022	37	0%	27%
2023	10	0%	27%
2024	9	0%	29%
2025 (OOS)	5	0%	29%
2026 (OOS)	12	0%	22%

Spot-points backtest (estimated costs)

n/a (lower-probability reach rule). 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)	0	–	–	–	–	–	–
OOS 2025–26	0	–	–	–	–	–	–

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