SO gamma levels history

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

SO's closing gamma levels for 260 sessions to October 20, 2026: call wall, put wall, apex, gamma flip, net gamma and implied volatility. The full record back to the first recorded session is a free CSV download.

260

Sessions

27/60

Short gamma

last 60 sessions

Call wall

Put wall

SO net gamma, last 60 sessions

Jul 28Oct 20

SO closing levels by session

Download CSV

Session	Close	Call wall	Put wall	Apex	Flip	Net gamma	IV
Oct 20	90.71	90	89	90	87.25	+$10.2M	21.1%
Oct 19	89.27	90	89	90	87.25	+$7.5M	24.4%
Oct 16	91.18	90	89	90	89.5	+$8.5M	20.2%
Oct 15	89.18	87.5	85	87.5	85.5	+$13.3M	21.9%
Oct 14	89.38	87.5	85	87.5	87.25	+$12.0M	19.4%
Oct 13	88.11	87.5	85	87.5	87.25	+$11.1M	19.7%
Oct 12	87.04	87.5	85	87.5	86.5	+$10.7M	17.9%
Oct 9	86.17	87.5	85	87.5	87.5	+$6.4M	17.7%
Oct 8	86.15	87.5	85	87.5	87.5	+$6.9M	19.0%
Oct 7	85.44	87.5	85	87.5	75	+$5.7M	—
Oct 6	85.44	88	85	85	87.5	+$4.4M	—
Oct 5	83.79	88	85	85	75	+$2.5M	18.5%
Oct 2	83.72	87.5	85	85	75	+$1.0M	18.3%
Oct 1	83.47	87.5	83	83	—	−$1.4M	—
Sep 30	82.89	87.5	83	83	75	−$1.2M	20.9%
Sep 29	83.45	87.5	83	83	—	−$65K	—
Sep 28	82.35	87.5	85	85	75	+$1.8M	19.3%
Sep 25	82.88	87.5	85	85	91	+$669K	18.3%
Sep 24	82.89	87.5	85	85	75	+$498K	20.3%
Sep 23	83.47	87.5	85	85	75	+$979K	—
Sep 22	85.15	90	85	85	75	+$413K	17.8%
Sep 21	85.46	91	85	85	—	−$697K	—
Sep 18	85.52	91	85	85	75	−$847K	—
Sep 17	86.76	95	85	85	—	−$3.3M	18.0%
Sep 16	86.23	95	85	85	—	−$3.8M	23.2%
Sep 15	85.95	90	85	85	—	−$2.5M	20.8%
Sep 14	87.00	95	85	85	—	−$2.3M	18.1%
Sep 11	87.17	92	85	85	—	−$1.6M	18.3%
Sep 10	87.75	92	87.5	87.5	—	−$392K	19.6%
Sep 9	88.34	92	87.5	87.5	—	−$34K	19.1%
Sep 8	88.99	92	87.5	92	100	+$1.4M	21.2%
Sep 4	88.11	100	87.5	87.5	—	−$13K	18.3%
Sep 3	88.77	95	89	89	—	−$1.7M	16.6%
Sep 2	88.31	100	89	89	—	−$2.2M	17.7%
Sep 1	88.09	100	87.5	87.5	—	−$3.0M	17.6%
Aug 31	88.00	100	90	90	—	−$3.4M	17.8%
Aug 28	88.25	100	90	90	—	−$2.7M	18.0%
Aug 27	89.05	100	90	90	—	−$3.9M	16.7%
Aug 26	89.76	100	90	90	—	−$3.6M	17.4%
Aug 25	89.97	100	90	90	—	−$1.4M	18.0%
Aug 24	90.10	100	87.5	100	100	+$253K	18.1%
Aug 21	88.94	100	87.5	100	—	−$957K	17.2%
Aug 20	91.43	100	90	90	—	−$206K	19.4%
Aug 19	92.19	100	92	92	—	−$4.3M	17.5%
Aug 18	92.07	100	92	92	—	−$5.0M	17.1%
Aug 17	92.29	100	92	92	—	−$4.4M	19.2%
Aug 14	92.80	100	92	92	100	+$2.6M	19.6%
Aug 13	92.79	96	92	92	101	+$801K	16.7%
Aug 12	92.52	96	90	90	101	+$1.0M	30.8%
Aug 11	91.92	96	90	90	105	+$51K	21.1%
Aug 10	91.34	96	90	90	—	−$481K	20.8%
Aug 7	92.69	96	90	90	102	+$456K	19.1%
Aug 6	92.90	95	90	90	100	+$2.5M	23.4%
Aug 5	93.10	95	90	90	100	+$2.2M	20.5%
Aug 4	93.25	95	90	95	96	+$4.5M	24.0%
Aug 3	92.94	95	90	95	99	+$3.1M	24.3%
Jul 31	94.54	95	90	95	97.5	+$3.2M	22.1%
Jul 30	94.34	95	90	95	96	+$6.9M	23.9%
Jul 29	96.05	95	90	95	96	+$8.9M	25.0%
Jul 28	96.78	100	90	100	96	+$8.1M	25.6%
Jul 27	96.48	95	90	95	95	+$8.3M	25.4%
Jul 24	97.25	100	90	100	95	+$7.3M	23.5%
Jul 23	96.60	99	90	99	96	+$12.8M	24.4%
Jul 22	95.80	95	90	95	95	+$18.3M	23.5%
Jul 21	93.85	95	90	95	97	+$5.5M	25.7%
Jul 20	94.46	95	90	95	97	+$5.2M	23.2%
Jul 17	95.30	95	90	95	97.5	+$4.8M	22.1%
Jul 16	96.07	99	95	99	97.5	+$5.9M	21.4%
Jul 15	94.60	99	92.5	99	98	+$3.4M	21.9%
Jul 14	95.96	99	92.5	99	97.5	+$5.8M	21.3%
Jul 13	96.47	99	92.5	99	97	+$6.6M	22.2%
Jul 10	95.61	99	92.5	99	97	+$4.7M	19.2%
Jul 9	95.17	96	93	96	96	+$6.1M	20.0%
Jul 8	96.38	96	93	96	96	+$8.4M	21.2%
Jul 7	97.29	96	93	96	96	+$7.3M	22.2%
Jul 6	95.99	96	93	96	96	+$6.4M	20.2%
Jul 2	97.98	99	92.5	99	96	+$7.1M	17.3%
Jul 1	95.12	96	93	96	96	+$6.5M	18.2%
Jun 30	95.71	96	93	96	96	+$6.5M	18.3%
Jun 29	96.75	96	93	96	96	+$6.0M	19.8%
Jun 26	97.16	96	92.5	96	96	+$5.9M	16.5%
Jun 25	95.91	96	92.5	96	95	+$11.8M	18.2%
Jun 24	95.78	96	92.5	96	95	+$8.2M	20.1%
Jun 23	94.93	96	92.5	96	95	+$7.0M	19.1%
Jun 22	93.43	96	92.5	96	95	+$3.8M	20.1%
Jun 18	93.09	96	90	96	87	+$3.0M	18.7%
Jun 17	92.53	95	92.5	95	95	+$5.2M	34.7%
Jun 16	94.31	95	92.5	95	95	+$11.3M	18.9%
Jun 15	93.82	97.5	92.5	97.5	95	+$6.9M	16.6%
Jun 12	94.00	95	90	95	95	+$8.0M	21.0%
Jun 11	93.27	97.5	92.5	97.5	96	+$5.4M	27.9%
Jun 10	94.02	97.5	92.5	97.5	95	+$7.7M	20.5%
Jun 9	92.95	97.5	90	97.5	95	+$6.7M	21.8%
Jun 8	91.28	97.5	90	97.5	97	+$3.1M	21.4%
Jun 5	92.60	97.5	90	97.5	96	+$4.0M	20.1%
Jun 4	91.62	97.5	87.5	97.5	93	+$5.7M	20.4%
Jun 3	90.49	97.5	87.5	97.5	95	+$3.8M	—
Jun 2	90.51	97.5	90	97.5	97.5	+$2.6M	—
Jun 1	89.03	97.5	90	97.5	100	+$693K	21.5%
May 29	92.05	97.5	90	97.5	97.5	+$1.7M	19.3%
May 28	92.52	97.5	90	97.5	97.5	+$3.0M	20.0%
May 27	93.74	97.5	90	97.5	97.5	+$4.6M	19.0%
May 26	94.09	97.5	90	97.5	97.5	+$4.5M	21.3%
May 22	94.55	97.5	90	97.5	97.5	+$4.9M	17.3%
May 21	94.24	97.5	90	97.5	96	+$6.7M	18.4%
May 20	93.62	97.5	90	97.5	96	+$5.4M	19.5%
May 19	94.14	97.5	90	97.5	96	+$5.5M	20.5%
May 18	93.71	97.5	90	97.5	97.5	+$4.3M	19.9%
May 15	92.55	97.5	90	97.5	97.5	+$3.5M	22.6%
May 14	93.68	100	92	100	93	+$6.2M	23.1%
May 13	93.14	100	90	100	94	+$4.7M	24.2%
May 12	93.47	100	85	100	96	+$4.0M	—
May 11	93.10	100	85	100	93	+$4.0M	23.8%
May 8	91.80	92.5	85	92.5	92.5	+$5.2M	22.0%
May 7	92.43	92.5	93	92.5	92.5	+$5.5M	23.8%
May 6	93.51	100	95	100	92.5	+$4.8M	—
May 5	95.90	100	95	100	92.5	+$6.7M	22.4%
May 4	95.99	100	95	100	92.5	+$6.7M	19.7%
May 1	96.71	100	95	100	92.5	+$6.4M	18.4%
Apr 30	96.70	100	92	100	97.5	+$5.4M	23.1%

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

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Common questions

Where can I download SO gamma history?

The CSV on this page has every recorded SO session: call wall, put wall, apex, flip, net gamma, ATM IV and max pain.

How often is SO in short gamma?

27 of the last 60 sessions closed with dealers net short gamma.

Compare: gamma levels history on other tickers

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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.