The shelf · Yesterday's high or low · E-mini Nasdaq-100
Does yesterday's high or low work on NQ? Eighteen years, tested
The rule as it ran
Prior-day sweep, fade or follow. Run on NQ, the E-mini Nasdaq-100.
excursion 0.1; sustain 10; hold 60; window 0930-1130; mode fade; sides Both
One trade a day, the first signal in the window, on one-minute bars, with one tick of slippage each way and commission. Trades dated 2023 or later are the seen era; the years before decide the verdict. Tested September 15, 2026, under SHELF-01.
Nothing in this record points at one thing to do differently by eye; the rule as written is what it is.
That is what the record says about the rule as written. It is not what next year says.



The engine's report, in full
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THINRIDGE ENGINE REPORT - SCORED UNDER PROTOCOL v1.1
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SCOPE: Scored under Protocol v1.1 on FirstRate 1-min unadjusted via Thinridge engine. Intake testimony: NOT received (rule tested as locked). Contamination map sworn: no (seen era as declared or by archive date). Human review of reconciliation residue: NO.
1. THE RULE AS LOCKED
family : D - Yesterday's high or low
as you locked it:
Yesterday's high or low, at the settings the door shows before anyone touches them (SHELF-01 v1.1): excursion 0.1; sustain 10; hold 60; window 0930-1130; mode fade; sides Both
seen era from 2023, the split the six teardowns were scored on
as the engine read it:
exit model : time only
filter : none
lineage : #1
bars : one-minute (every signal, fill and exit is on the one-minute series)
entries : one trade a day, the first qualifying signal in the window
history : 18.6 years, seen era = 2023 onward (declared by submitter, not sworn)
: trades dated 2023 or later are the seen era; trades before 2023 are the unseen era, and the unseen era decides the verdict
2. VERDICT
SCORE : 56 / 100
VERDICT : MARGINAL
CRATERS : pillar(s) below 50%: II
Pillars : I=5 II=3 III=11 IV=12 V=12 VI=13
3. RESULT
Trades 1394 Net $21,585.20 Per trade $15.48
Seen era (2023+): 313 trades, -$8,749.60
Unseen era : 1081 trades, $30,334.80
Win rate 51.8% (722 of 1394 trades closed above zero after costs)
Exits by type: time 1394
4. THE NULL (random-side twins, 5000 seeds)
Full window p = 0.1384 (692 / 5000)
Unseen era p = 0.0264 (132 / 5000) <- governs
Lineage-adjusted p (variant #1) = 0.0264
5. ERA CONSISTENCY (unseen calendar years as windows)
Years 15 profitable 8 WF efficiency (PF unseen/seen) 1.20
Largest year 2022 = 69.3% of unseen-era net
By year (unseen): 2008 $2,317.60 2009 -$165.60 2010 $976.00 2011 -$142.20 2012 $2,872.80 2013 -$1,014.20 2014 $2,967.40 2015 $5,578.60 2016 -$213.80 2017 $3,424.00 2018 -$546.00 2019 $6,730.20 2020 -$13,065.00 2021 -$411.20 2022 $21,026.20
6. COST STRESS (re-simulated)
1 tick $21,585.20 2 ticks $7,645.20 3 ticks -$6,294.80
Net/gross at 1 tick 52.2% PF at 2x friction 1.00 Breakeven 2.5 ticks/side
7. FRAGILITY (bootstrap x5000)
Full CI -$52,624.80 .. $99,140.20 P(net>0) 0.7174
Unseen CI -$16,560.20 .. $77,464.80 P(net>0) 0.8982
DD95/actual 1.21x Top trade 27.4% Top-5 125.6%
8. SENSITIVITY (+-10% on primary trigger)
Plateau retention 100% Sign flip no Parameters 5
9. LIVABILITY (no points; could a person have held this?)
Longest stretch without a new equity high: 50 months (ending 2026-08)
Rolling 12-month windows negative: 40% of 213 Worst 12 months: -$18,956.60 (ending 2025-06)
Max drawdown $42,931.00 Median year -$142.20 Years of median to recoup the drawdown: n/a (median year not positive)
Share of all profit from the best two years: 165%
10. CODE OFFER
[ ] validated
[x] unseen_p_adj_le_0.05
[ ] unseen_ci_excludes_zero
[ ] breakeven_ge_4_ticks
[ ] top_trade_le_25pct
=> not offered at this result.
11. SCORING LINES
II: Sharpe retention 0.0 (per-trade) -> 0; absolute OOS -> 3
III: windows profitable 0.53 -> 3; efficiency 1.2 -> 8; window concentration -> 0
IV: null p 0.0264 (5000 seeds) -> 8; DD95/BT 1.21 -> 4; top trade 0.274 -> 0
V: retention@1x 0.522 -> 8; PF@2x 1.0 -> 4
VI: plateau 1.0 -> 8; parsimony 5 -> 2; sign flip False -> 3
12. THE AUTOPSY (where the money came from and went; the rule as it ran, no new try)
Exits: time 1394, $21,585.20
On the books, unseen era (net $30,334.80): 10:00 $4,797.00 11:00 $28,819.20 12:00 $28,894.80 13:00 $30,334.80 14:00 $30,334.80 15:00 $30,334.80
Share of the unseen money after 12:00: 5%; after 14:00: 0%
Eras: unseen $30,334.80, seen -$8,749.60; largest unseen year 2022 = 69% of the unseen net
Plateau: 100% retained on a 10% nudge; sign flip no
Drought: 50 months without a new high (ending 2026-08); median year -$142.20; years of median to recoup n/a
The money was made by noon: 95% of the unseen-era money was on the books by 12:00. One year is most of it: 2022 is 69% of the unseen-era net. Longest wait for a new equity high: 50 months, median year -$142.20.
The one next run, if you want it: the clock exit at 12:00, as lineage #2. Prediction on file: within 20% of the unseen net with the afternoon's give-back removed; 95% of the money was on the books by then. Three such runs at most, then the verdict stands.
13. IF YOU TRADE THIS BY EYE
Nothing in this record points at one thing to do differently by eye; the rule as written is what it is.
That is what the record says about the rule as written. It is not what next year says.
WHAT THIS CANNOT TELL YOU: the score assumes this rule walked in
once (see lineage) and that your development did not touch the
unseen era. Neither was sworn. A Thinridge audit exists to take
that testimony. Not investment advice. No guarantee of future
results. Statistical analysis of a mechanical rule as submitted.
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Raw market data: FirstRate Data (firstratedata.com). Statistical analysis of a mechanical rule as written; not advice.