CASY gamma levels history

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

CASY'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

16/60

Short gamma

last 60 sessions

690

Call wall

670

Put wall

CASY net gamma, last 60 sessions

Jul 28Oct 20

CASY closing levels by session

Download CSV

Session	Close	Call wall	Put wall	Apex	Flip	Net gamma	IV
Oct 20	684.51	690	670	670	765	+$277K	—
Oct 19	693.73	690	670	670	765	+$478K	—
Oct 16	689.22	690	670	670	765	+$269K	32.9%
Oct 15	673.63	670	620	670	645	+$8.7M	—
Oct 14	653.61	660	620	660	645	+$6.3M	—
Oct 13	641.74	660	620	660	645	+$4.9M	37.4%
Oct 12	645.72	660	620	660	645	+$4.2M	—
Oct 9	646.27	660	610	660	640	+$5.8M	—
Oct 8	642.28	660	610	660	630	+$5.4M	34.3%
Oct 7	633.25	650	590	650	640	+$3.9M	—
Oct 6	620.80	660	610	660	640	+$2.4M	34.1%
Oct 5	617.33	660	590	660	640	+$2.2M	32.5%
Oct 2	617.76	660	610	660	640	+$2.4M	31.4%
Oct 1	619.50	660	580	660	620	+$2.6M	34.1%
Sep 30	608.46	660	580	660	640	+$1.6M	35.1%
Sep 29	599.90	660	580	660	650	+$1.2M	34.7%
Sep 28	606.24	660	580	660	650	+$1.2M	—
Sep 25	598.46	660	540	660	650	+$998K	32.7%
Sep 24	598.85	660	540	660	650	+$975K	34.2%
Sep 23	597.31	650	630	650	650	+$288K	34.3%
Sep 22	584.83	650	630	650	670	+$72K	—
Sep 21	585.34	640	630	630	500	−$130K	—
Sep 18	597.48	640	630	630	510	−$190K	33.1%
Sep 17	607.45	650	580	650	650	+$807K	36.7%
Sep 16	589.00	650	580	580	490	−$1.3M	35.7%
Sep 15	587.14	640	630	630	490	−$2.1M	35.7%
Sep 14	621.61	640	630	630	—	−$3.3M	35.4%
Sep 11	615.47	640	630	630	—	−$4.5M	—
Sep 10	627.64	640	630	630	—	−$2.7M	39.6%
Sep 9	629.03	740	630	630	—	−$4.0M	38.5%
Sep 8	733.49	840	700	700	—	−$1.2M	69.3%
Sep 4	756.09	900	730	730	—	−$676K	—
Sep 3	758.42	900	730	730	—	−$702K	58.2%
Sep 2	753.59	900	730	730	—	−$911K	54.4%
Sep 1	766.91	900	730	730	—	−$509K	52.3%
Aug 31	752.21	900	730	730	—	−$887K	50.3%
Aug 28	755.47	900	730	730	—	−$837K	—
Aug 27	763.38	900	740	900	—	−$468K	47.4%
Aug 26	807.12	950	820	950	950	+$294K	48.3%
Aug 25	824.92	950	800	950	950	+$331K	—
Aug 24	854.21	950	800	950	700	+$540K	44.6%
Aug 21	835.74	920	800	920	930	+$316K	—
Aug 20	828.38	820	810	820	680	+$3.2M	42.8%
Aug 19	836.15	900	810	900	680	+$2.5M	41.1%
Aug 18	855.00	900	850	900	880	+$2.7M	—
Aug 17	870.01	900	760	900	880	+$4.2M	41.6%
Aug 14	846.45	900	780	900	880	+$2.6M	38.8%
Aug 13	853.78	900	830	900	880	+$2.4M	31.2%
Aug 12	839.03	900	830	900	900	+$1.3M	33.1%
Aug 11	829.91	900	830	900	680	+$762K	33.8%
Aug 10	854.46	900	830	900	880	+$2.2M	—
Aug 7	833.95	820	780	820	900	+$1.2M	33.0%
Aug 6	832.42	900	780	900	680	+$967K	31.6%
Aug 5	852.86	900	840	900	900	+$1.8M	35.2%
Aug 4	850.66	920	840	920	900	+$1.8M	36.7%
Aug 3	860.37	920	840	920	880	+$2.5M	35.8%
Jul 31	871.00	920	840	920	880	+$2.7M	33.8%
Jul 30	867.50	900	840	900	880	+$2.7M	35.2%
Jul 29	867.16	920	840	920	880	+$2.4M	35.4%
Jul 28	856.86	920	840	920	880	+$2.3M	36.8%
Jul 27	853.38	920	750	920	860	+$2.4M	35.2%
Jul 24	861.63	920	760	920	820	+$2.7M	34.2%
Jul 23	875.25	920	760	920	820	+$2.6M	—
Jul 22	856.74	900	760	900	820	+$2.4M	31.7%
Jul 21	858.26	920	760	920	820	+$2.4M	35.1%
Jul 20	866.46	920	760	920	820	+$2.3M	36.6%
Jul 17	859.12	920	760	920	820	+$2.0M	37.1%
Jul 16	827.04	850	790	850	850	+$2.9M	39.5%
Jul 15	808.49	860	790	860	900	+$503K	41.1%
Jul 14	847.19	860	840	860	850	+$3.7M	41.6%
Jul 13	859.10	860	790	860	850	+$3.3M	41.4%
Jul 10	819.83	850	790	850	860	+$1.2M	32.6%
Jul 9	822.00	850	790	850	860	+$1.5M	34.7%
Jul 8	843.10	850	790	850	850	+$2.0M	38.0%
Jul 7	801.99	850	790	850	950	+$35K	36.0%
Jul 6	807.18	850	790	850	910	+$315K	35.7%
Jul 2	797.42	850	790	850	—	−$103K	32.0%
Jul 1	784.28	850	790	850	—	−$605K	—
Jun 30	794.79	860	790	790	—	−$504K	—
Jun 29	780.24	860	790	790	—	−$886K	35.1%
Jun 26	778.63	860	790	790	—	−$933K	32.6%
Jun 25	784.71	860	790	790	—	−$917K	—
Jun 24	801.35	860	790	790	—	−$372K	33.2%
Jun 23	831.89	860	790	860	950	+$156K	32.4%
Jun 22	831.67	950	790	790	—	−$567K	34.2%
Jun 18	842.25	850	790	850	—	−$147K	33.5%
Jun 17	850.85	860	840	840	—	−$131K	43.5%
Jun 16	865.28	860	840	840	990	+$296K	—
Jun 15	872.39	1000	820	1000	930	+$994K	36.2%
Jun 12	895.14	900	820	900	910	+$1.3M	—
Jun 11	916.28	950	800	950	860	+$2.5M	38.2%
Jun 10	915.60	900	740	900	820	+$3.0M	44.0%
Jun 9	761.18	770	740	740	—	−$848K	68.0%
Jun 8	751.63	820	750	750	620	−$807K	64.2%
Jun 5	761.91	820	750	750	620	−$666K	58.7%
Jun 4	761.57	820	740	820	—	−$557K	56.3%
Jun 3	774.19	820	740	820	—	−$396K	—
Jun 2	754.21	820	740	820	620	−$744K	—
Jun 1	745.58	820	740	820	—	−$584K	—
May 29	767.14	810	740	810	—	−$592K	49.0%
May 28	780.97	810	740	810	—	−$387K	48.5%
May 27	784.38	810	800	810	—	−$136K	—
May 26	809.41	810	790	810	890	+$309K	48.7%
May 22	825.02	810	790	810	880	+$468K	—
May 21	824.80	810	790	810	860	+$511K	—
May 20	852.51	950	790	950	830	+$600K	43.6%
May 19	852.15	810	840	810	810	+$501K	42.4%
May 18	855.87	810	840	810	810	+$485K	42.5%
May 15	852.75	810	840	810	810	+$558K	42.0%
May 14	877.48	890	850	890	840	+$1.4M	38.1%
May 13	888.36	890	820	890	880	+$1.1M	37.5%
May 12	867.19	860	850	860	840	+$1.3M	35.7%
May 11	877.07	890	850	890	830	+$1.2M	36.4%
May 8	859.49	840	850	840	830	+$1.0M	30.3%
May 7	850.95	830	850	830	830	+$937K	29.7%
May 6	858.14	830	740	830	720	+$1.2M	29.8%
May 5	862.35	830	740	830	720	+$1.2M	32.7%
May 4	852.63	830	740	830	720	+$1.2M	33.6%
May 1	835.92	820	740	820	700	+$1.6M	29.8%
Apr 30	822.15	820	740	820	800	+$1.0M	31.3%

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

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Common questions

Where can I download CASY gamma history?

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

How often is CASY in short gamma?

16 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.