Every morning at 9:30 AM, two stocks in the same sector have gapped overnight. Quantile finds the ones that moved unusually far apart — and bets on mean reversion by close.
01 — MEASURE
Compute the gap
At market open, record each stock's overnight gap — how much it moved from yesterday's close to today's open.
02 — ADJUST
Isolate the shock
Subtract the target stock's beta-weighted gap from the lead stock's gap. This strips out shared market moves and isolates the pair's divergence.
03 — RANK
Fire the signal
Rank that shock against years of history. Hit the threshold percentile — signal fires. Enter at open, exit at close, dollar neutral.
shock = lead_gap − β × target_gap
Short the lead, long the target when shock hits the upper threshold. Flip it when shock hits the lower threshold. Same-day exit. No overnight risk.
Why Quantile
The math does the work.
Manual Trading
Quantile Free
Quantile Paid
Gap calculation
Manual math every morning
Instant, automated
Instant, automated
Signal threshold
Guesswork
3-year historical rank
3-year historical rank
Pairs covered
Whatever you track
5 equity pairs
6+ pairs (more added)
Slippage included
✗ Rarely
✓ Always
✓ Always
Backtest verified
✗ Almost never
✓ 865 trades, 3 years
✓ 865+ trades
Cost
Your time
Free
Coming soon
Backtest Results
Five pairs. All profitable.
Jan 2023 – Mar 2026 · $100/leg · dollar neutral · open-to-close · slippage included.
V / MA63.6%
Visa · Mastercard
Trades
316
Sharpe
3.47
Sortino
4.26
Max DD
$3.20
PG / CL62.8%
Procter & Gamble · Colgate
Trades
156
Sharpe
1.97
Sortino
1.50
Max DD
$4.42
LOW / HD59.7%
Lowe's · Home Depot
Trades
457
Sharpe
2.44
Sortino
2.86
Max DD
$6.54
MS / GS59.1%
Morgan Stanley · Goldman Sachs
Trades
308
Sharpe
1.74
Sortino
1.52
Max DD
$8.17
BAC / JPM54.2%
Bank of America · JPMorgan
Trades
177
Sharpe
1.16
Sortino
1.03
Max DD
$11.89
Combined59.7%
All five pairs · 865 trades · Sharpe 2.75
Trades
865
Sharpe
2.75
Sortino
3.94
Max DD
$30
Why trust it
Built in the open.
No black box. The logic is public. Losses are shown. You can verify every number yourself.
Verified logic
Python backtest output verified against the original HTML scorecard line by line. Both produce identical signals for the same inputs.
Live trade log
Every signal gets logged with timestamp, entry prices, percentile, and outcome. Win rate updates in real time as trades close.
Honest numbers
Slippage is included in every backtest result. Correct Sharpe calculation includes all trading days — not just days a signal fires.
Open source
Full backtest engine, and React app on GitHub. Fork it, audit it, run it yourself. Nothing is hidden.
Built in Public
Follow the journey.
Every signal, every trade, every result — posted in real time.