SteadyTapeQuantitative Market Research

A/D Capitulation

Median 1M return: +1.9%, 69% win rate.

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9:1 advance/decline capitulation events on SPY/QQQ baskets - washout-low signals.

As of
2026-07-20
SPY Basket
Normal (D/A=2.2×)
167 adv / 362 dec
Nasdaq Basket
Normal (D/A=1.5×)
31 adv / 45 dec
SPY 10:1 Up Days
258
SPY 10:1 Down Days
261
Dual-Confirm
372
B2B Thrusts
133

When to run this study

Run during or immediately after sharp market selloffs or relief rallies. A 9:1 down day during a crash and a subsequent 9:1 up day together are among the most reliable capitulation + reversal signals in the historical record. Dual-confirm signals (both SPY basket and Nasdaq basket hit 9:1) are the strongest.

Historical results

SPY Forward Returns after 10:1 Up Days (N=258)

PeriodNWin%AvgMedianBestWorst
1D25850-0.1503.97-4.99
3D25856.20-0.020.225.95-7.48
1W25858.10-0.090.278.33-17.24
2W25861.200.120.8712.48-22.40
1M25868.601.051.9115.17-21.92
3M25871.303.595.0832.07-23.91
6M25879.507.508.6944.47-37.30