JPM gamma exposure by strike

From the closing options book · October 20, 2026 · updated after every close

JPM closed at 335.26 on October 20, 2026 with dealers net long $3.2M of gamma. The call wall was 350 (+4.4%), the put wall 320 (−4.6%) and the apex, the single largest gamma strike, 350.

+$3.2M
Net gamma
350
Call wall
+4.4%
320
Put wall
−4.6%
377.5
Gamma flip
+12.6%

JPM largest gamma strikes within 4% of the close

Strikeshort ← dealer gamma → long
347.5
+$3.4M
345
+$11.4M
342.5
+$4.8M
340
+$4.6M
— close 335.26 —
335
−$3.8M
332.5
−$2.1M
330
−$7.5M
327.5
−$1.6M
325
−$11.7M
322.5
−$2.0M

The heaviest strike on the October 20, 2026 book was 325, carrying −$11.7M of dealer gamma, −3.1% from the close.

JPM closed with dealers short gamma on 5 of the last 60 sessions. In short gamma, dealer hedging buys rallies and sells drops, which tends to extend moves; in long gamma it leans against them.

Positive (green) strikes are where dealers are long gamma and hedge against the move; negative (pink) strikes are where they are short and hedge with it. These are closing levels: where hedging was concentrated last night, not targets.

These are the October 20, 2026 closing numbers. Members see JPM's map move live all session.

Common questions

What is JPM's gamma exposure?

At the October 20, 2026 close, JPM's net dealer gamma exposure was +$3.2M: long gamma.

Where is JPM's call wall?

350, +4.4% from the 335.26 close on October 20, 2026.

Where is JPM's put wall?

320, −4.6% from the close on October 20, 2026.

Compare: gamma exposure by strike on other tickers

Measured from the closing options book and rebuilt after every close. Nothing on this page is live. Levels are where dealer hedging is concentrated, not targets or forecasts. Not investment advice.