ISRG gamma levels history

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

ISRG'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

21/60

Short gamma

last 60 sessions

475

Call wall

405

Put wall

ISRG net gamma, last 60 sessions

Jul 28Oct 20

ISRG closing levels by session

Download CSV

Session	Close	Call wall	Put wall	Apex	Flip	Net gamma	IV
Oct 20	438.00	475	405	475	438.75	+$8.1M	54.5%
Oct 19	433.18	425	415	425	428.75	+$5.7M	63.4%
Oct 16	426.70	425	415	425	433.75	+$4.6M	57.3%
Oct 15	427.86	420	415	420	426.25	+$13.1M	65.9%
Oct 14	420.24	420	415	420	423.75	+$9.6M	50.0%
Oct 13	422.06	420	360	420	423.75	+$9.7M	47.9%
Oct 12	427.64	440	360	440	418.75	+$12.4M	41.6%
Oct 9	423.96	420	415	420	425	+$8.3M	46.5%
Oct 8	415.41	420	397.5	420	415	+$17.8M	52.0%
Oct 7	414.52	420	360	420	415	+$15.3M	41.1%
Oct 6	404.76	420	360	420	420	+$5.2M	45.6%
Oct 5	406.48	420	360	420	420	+$5.2M	37.5%
Oct 2	391.95	420	360	360	450	+$1.0M	33.7%
Oct 1	401.24	420	360	420	417.5	+$6.9M	32.6%
Sep 30	406.63	420	335	420	420	+$7.3M	36.2%
Sep 29	412.18	420	350	420	410	+$11.5M	34.6%
Sep 28	414.79	420	335	420	410	+$9.4M	38.7%
Sep 25	405.18	420	335	420	410	+$6.4M	33.2%
Sep 24	399.52	410	335	410	410	+$7.1M	39.2%
Sep 23	398.30	405	335	405	412.5	+$5.8M	34.6%
Sep 22	402.09	405	335	405	410	+$6.6M	36.2%
Sep 21	401.65	405	335	405	410	+$4.4M	38.3%
Sep 18	393.33	405	335	335	440	+$1.0M	33.1%
Sep 17	383.54	400	350	350	440	+$1.1M	36.0%
Sep 16	382.29	400	350	350	440	+$850K	46.3%
Sep 15	377.16	400	350	350	—	−$4.4M	43.6%
Sep 14	377.94	400	350	350	—	−$4.4M	38.6%
Sep 11	369.15	400	350	350	—	−$11.5M	32.8%
Sep 10	360.46	360	350	360	—	−$5.7M	34.0%
Sep 9	353.24	360	335	335	—	−$11.7M	36.4%
Sep 8	350.16	400	350	350	—	−$14.6M	41.6%
Sep 4	366.70	400	350	350	—	−$10.5M	31.0%
Sep 3	369.83	400	350	350	—	−$6.2M	32.3%
Sep 2	371.88	400	350	350	—	−$4.5M	40.3%
Sep 1	369.25	400	350	350	—	−$6.8M	32.3%
Aug 31	376.86	400	350	350	—	−$4.4M	31.8%
Aug 28	372.60	400	350	350	—	−$7.1M	33.4%
Aug 27	367.07	400	350	350	—	−$8.0M	30.9%
Aug 26	370.42	400	350	350	—	−$7.2M	32.3%
Aug 25	371.84	400	350	350	—	−$5.9M	32.3%
Aug 24	373.57	400	350	350	—	−$5.2M	31.5%
Aug 21	378.81	400	350	350	—	−$5.0M	31.5%
Aug 20	374.48	400	350	350	—	−$4.3M	30.6%
Aug 19	397.72	400	350	400	415	+$5.0M	37.4%
Aug 18	391.18	420	350	350	445	+$1.0M	32.8%
Aug 17	390.33	420	350	350	445	+$998K	31.1%
Aug 14	394.51	400	350	350	430	+$2.7M	29.9%
Aug 13	401.27	400	377.5	400	395	+$9.5M	30.7%
Aug 12	401.27	450	377.5	450	390	+$9.3M	30.5%
Aug 11	401.23	400	360	400	395	+$7.9M	32.1%
Aug 10	393.38	390	345	390	390	+$5.3M	34.8%
Aug 7	378.81	380	345	380	390	+$2.4M	33.5%
Aug 6	373.71	380	360	380	380	+$5.8M	35.5%
Aug 5	375.20	380	345	380	385	+$5.4M	36.2%
Aug 4	368.27	370	345	370	385	+$3.2M	38.5%
Aug 3	375.41	380	345	380	390	+$3.5M	37.7%
Jul 31	353.33	380	345	345	—	−$3.5M	35.7%
Jul 30	352.97	360	345	345	—	−$739K	36.0%
Jul 29	353.10	380	345	345	—	−$639K	40.6%
Jul 28	361.80	380	345	345	380	+$2.0M	38.7%
Jul 27	356.83	360	345	345	—	−$457K	43.6%
Jul 24	337.50	380	345	345	—	−$5.3M	36.7%
Jul 23	332.02	365	320	320	—	−$7.3M	39.1%
Jul 22	340.69	365	340	340	—	−$3.9M	39.3%
Jul 21	350.06	365	340	365	—	−$499K	37.9%
Jul 20	353.17	420	345	345	—	−$6.3M	46.3%
Jul 17	345.42	405	345	345	—	−$6.8M	37.7%
Jul 16	402.33	450	390	390	—	−$3.3M	73.4%
Jul 15	388.97	450	390	390	—	−$9.5M	65.4%
Jul 14	379.50	450	390	390	—	−$12.1M	57.1%
Jul 13	407.12	450	390	390	—	−$6.1M	88.0%
Jul 10	406.78	450	390	390	—	−$5.9M	55.0%
Jul 9	411.55	450	390	390	—	−$4.5M	54.8%
Jul 8	415.10	450	390	390	—	−$1.5M	52.0%
Jul 7	427.30	450	390	390	455	+$4.1M	67.6%
Jul 6	432.83	450	390	390	475	+$2.3M	42.5%
Jul 2	426.01	450	390	390	—	−$695K	48.6%
Jul 1	402.38	450	390	390	—	−$4.4M	41.5%
Jun 30	397.68	450	390	390	—	−$6.8M	39.5%
Jun 29	405.97	450	390	390	—	−$4.4M	42.5%
Jun 26	404.70	450	390	390	—	−$5.3M	42.3%
Jun 25	399.69	450	390	390	—	−$3.2M	44.7%
Jun 24	401.83	450	390	390	—	−$3.5M	40.3%
Jun 23	403.18	450	390	390	—	−$3.2M	37.3%
Jun 22	402.95	450	390	390	—	−$5.7M	41.2%
Jun 18	406.78	450	390	390	—	−$7.5M	32.6%
Jun 17	402.18	450	400	400	—	−$16.0M	39.7%
Jun 16	417.07	450	390	390	—	−$6.6M	34.0%
Jun 15	416.55	450	390	390	—	−$7.9M	34.5%
Jun 12	411.06	450	390	390	—	−$10.7M	34.4%
Jun 11	412.90	450	410	410	—	−$9.5M	38.5%
Jun 10	412.02	455	400	400	—	−$10.5M	37.7%
Jun 9	426.61	455	400	400	—	−$3.5M	38.4%
Jun 8	418.61	500	400	400	—	−$6.3M	38.3%
Jun 5	422.06	435	400	400	—	−$5.0M	36.9%
Jun 4	418.82	415	420	420	—	−$14.4M	36.8%
Jun 3	407.29	445	420	420	—	−$16.1M	41.6%
Jun 2	402.30	445	420	420	—	−$15.0M	45.2%
Jun 1	412.26	435	420	420	350	−$15.0M	40.8%
May 29	424.64	500	420	420	350	−$12.3M	35.2%
May 28	423.63	447.5	422.5	422.5	345	−$30.5M	34.3%
May 27	418.55	447.5	422.5	422.5	350	−$21.8M	44.2%
May 26	436.64	447.5	420	420	360	−$8.2M	37.6%
May 22	438.10	500	420	420	—	−$7.6M	32.0%
May 21	439.80	447.5	420	420	—	−$3.3M	33.6%
May 20	449.03	447.5	420	420	—	−$1.3M	33.4%
May 19	441.58	500	420	420	—	−$6.1M	34.9%
May 18	439.92	500	420	420	—	−$8.9M	34.3%
May 15	421.12	500	420	420	360	−$13.5M	30.2%
May 14	428.06	440	430	430	—	−$30.4M	32.6%
May 13	432.27	440	420	420	—	−$19.6M	35.4%
May 12	431.87	440	420	420	—	−$19.9M	33.8%
May 11	420.06	500	420	420	350	−$26.7M	34.8%
May 8	450.06	485	430	430	—	−$13.9M	29.4%
May 7	453.49	485	430	430	—	−$14.5M	30.7%
May 6	451.73	485	430	430	—	−$15.4M	30.0%
May 5	451.38	485	430	430	—	−$15.2M	31.1%
May 4	452.35	485	430	430	—	−$14.4M	34.0%
May 1	457.78	485	430	430	—	−$9.6M	29.0%
Apr 30	457.61	507.5	430	430	—	−$5.0M	31.5%

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

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Common questions

Where can I download ISRG gamma history?

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

How often is ISRG in short gamma?

21 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.