Delayed derived options structure
TAPE·PIN
Not a scanner · Not max pain from volume
tape 2026-09-18 · published 2026-09-20T14:49:11.657872-04:00

SPY gamma exposure: flip 759.09, call wall 762.0, regime TRANSITIONING.

Tape and gamma snapshot disagree.

GEX by strike

call wall $bnput support $bn
745-158.88760-119.53761-111.11762+720.78765+92.61770+109.15flip 759.09

Net GEX history

09-1209-1309-1409-1509-1609-1709-1809-19
gamma snapshot date 2026-09-19 · not the tape session unless the dates match

TRANSITIONING net 15.781 bn · flip 759.09

Call walls

strikegex $bn
762.0720.78 bn
770.0109.149 bn
765.092.61 bn

Put supports

strikegex $bn
745.0-158.877 bn
760.0-119.525 bn
761.0-111.106 bn

Gamma walls by tenor

tenorcall wallput wallp/cnet gex $bn
0dte762.0761.03.76356.363
1_3dte770.0755.01.0359.183
weekly772.0745.01.63-93.812
monthly780.0750.01.95-305.952

Gamma snapshot history

as-ofspotflipcall wallregime
2026-09-12764.29762.17765.0TRANSITIONING
2026-09-13764.29761.99775.0NEGATIVE_GAMMA
2026-09-14764.29761.99775.0NEGATIVE_GAMMA
2026-09-15760.88766.24765.0NEGATIVE_GAMMA
2026-09-16757.44761.98758.0NEGATIVE_GAMMA
2026-09-17754.05762.95760.0NEGATIVE_GAMMA
2026-09-18762.60758.30765.0TRANSITIONING
2026-09-19761.69759.09762.0TRANSITIONING

Questions

What is SPY gamma exposure?

This delayed snapshot models dealer gamma. Net GEX is 15.781 bn USD. It is not a live dealer book and not a forecast.

Where is the SPY gamma flip?

The flip in this snapshot is 759.09. Above it the model is positive-gamma; below it, negative-gamma.

Where is the SPY gamma wall?

The top call wall is 762.0. Tenor walls are in the table. These are not volume walls and not max pain.