SteadyTapeQuantitative Market Research

A/D Capitulation

Median 1M return: +1.9%, 68% win rate.

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

As of
2026-06-05
SPY Basket
Normal (D/A=1.2×)
235 adv / 293 dec
Nasdaq Basket
Normal (D/A=4.8×)
13 adv / 63 dec
SPY 10:1 Up Days
259
SPY 10:1 Down Days
260
Dual-Confirm
377
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=259)

PeriodNWin%AvgMedianBestWorst
1D25949.40-0.1603.97-4.99
3D25956-0.040.215.95-7.48
1W25958.30-0.090.288.33-17.24
2W25961.400.120.8712.48-22.40
1M25968.301.041.9015.17-21.92
3M25971.403.605.0832.07-23.91
6M25978.807.378.5744.47-37.30