COST Options History — May 2022

In May 2022, COST traded between $415.29 and $544.09. ATM implied volatility averaged 39.2%, placing in the 87.3% IV rank vs the trailing year. The 30-day expected move averaged 11.3%. IV traded below realized volatility by 6.9% (HV 20d: 46.1%). Max pain ranged from $510.00 to $575.00. Net GEX was positive for 3 of 21 trading days. Term structure was in contango for 2 of 21 days. Put/call ratio averaged 1.09.

Notable Days

2022-05-27: Highest Volume — 152,672 contracts
2022-05-18: Largest IV spike — 50.3% change
2022-05-09: Highest IV Rank — 100.0%
2022-05-20: Largest Expected Move — 14.8%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$478.30	$415.29	$544.09	$526.23	$467.59
Max Pain	$540.95	$510.00	$575.00	$575.00	$510.00
ATM IV	39.2%	30.3%	50.6%	35.4%	30.7%
Expected Move	11.3%	8.0%	14.8%	10.1%	9.0%
HV 20d	46.1%	34.3%	63.4%	34.3%	61.7%
HV 60d	33.9%	25.9%	42.3%	25.9%	42.3%
IV Rank	87.3%	44.8%	100.0%	93.8%	44.8%
IV Percentile	97.0%	83.3%	100.0%	99.6%	83.3%
Term Structure	-1.4%	-3.3%	0.3%	-0.9%	-0.7%
VWIV	40.7%	29.8%	54.1%	36.1%	34.1%
Skew 25d	6.9%	4.2%	9.8%	6.9%	4.8%
Skew 10d	14.5%	10.0%	20.5%	15.0%	10.4%
Call IV 25d	36.5%	28.3%	47.6%	32.3%	29.1%
Put IV 25d	43.4%	33.6%	56.8%	39.2%	33.9%
Bid-Ask Spread %	32.67	9.63	46.94	31.59	18.76
Gamma HHI	0.05	0.03	0.17	0.04	0.04
Net GEX	-38.2M	-77.8M	37.3M	-56.1M	3.1M
Net DEX	1.12B	-149.4M	2.39B	633.7M	440.9M
Net VEX	-11.4M	-12.8M	-9.1M	-12.8M	-11.4M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	1.09	0.59	1.83	1.83	1.16
Total Volume	53,275.048	20,176	152,672	39,948	53,255
Total OI	236,733	204,622	339,281	204,622	267,055

Daily Data (21 trading days)

Date	Price	Max Pain	ATM IV	Exp Move	HV 20d	IV Rank	VWIV	Skew 25d	Term Str	GEX	DEX	VEX	P/C	Spread %	Call Vol	Put Vol	Call OI	Put OI
2022-05-02	$526.23	$575.00	35.4%	10.1%	34.3%	93.8%	36.1%	6.9%	-0.9%	-56.1M	633.7M	-12.8M	1.83	31.59	14,114	25,834	92,661	111,961
2022-05-03	$524.61	$570.00	34.3%	9.5%	34.3%	88.8%	33.9%	6.8%	-0.3%	-58.1M	631.3M	-12.7M	1.03	36.54	9,920	10,256	96,199	115,987
2022-05-04	$544.09	$570.00	30.3%	8.0%	37.2%	71.2%	29.8%	5.3%	0.1%	-33.7M	-149.4M	-12.7M	1.09	39.25	11,976	13,058	98,293	117,541
2022-05-05	$515.79	$550.00	36.1%	9.9%	40.5%	97.1%	34.7%	7.2%	-1.2%	-58.3M	869.5M	-12.4M	1.19	36.73	16,007	19,093	100,252	117,002
2022-05-06	$502.02	$550.00	36.2%	10.0%	37.1%	97.6%	35.9%	6.9%	-1.4%	-77.8M	1.32B	-11.9M	1.23	36.58	17,379	21,432	102,462	119,659
2022-05-09	$498.94	$550.00	38.1%	10.6%	37.1%	100.0%	37.2%	6.8%	-0.8%	-53.6M	1.16B	-11.6M	0.93	32.83	14,805	13,810	95,260	114,364
2022-05-10	$499.42	$550.00	37.3%	10.5%	36.6%	96.9%	36.6%	7.0%	-0.5%	-51.4M	1.10B	-11.6M	0.90	35.51	12,147	10,941	98,370	115,381
2022-05-11	$488.89	$550.00	37.7%	10.5%	36.9%	98.6%	37.0%	6.3%	-1.1%	-56.3M	1.37B	-11.3M	0.99	37.14	12,461	12,297	101,118	116,521
2022-05-12	$483.96	$545.00	38.4%	10.8%	35.2%	100.0%	38.1%	6.9%	-0.8%	-56.5M	1.44B	-11.1M	0.87	36.55	13,648	11,830	102,932	116,561
2022-05-13	$498.14	$545.00	34.7%	9.8%	37.8%	84.5%	35.9%	6.1%	-0.8%	-52.2M	976.8M	-11.0M	0.59	41.43	19,504	11,582	104,551	116,954
2022-05-16	$493.44	$545.00	34.5%	9.8%	37.5%	83.5%	34.9%	5.5%	-1.2%	-46.1M	1.09B	-10.9M	0.80	37.48	11,295	9,056	99,103	111,849
2022-05-17	$489.67	$545.00	33.0%	9.4%	36.0%	77.2%	33.0%	5.3%	-1.2%	-49.0M	1.17B	-10.4M	0.97	46.94	15,214	14,808	102,735	113,785
2022-05-18	$428.87	$540.00	49.6%	14.2%	55.2%	100.0%	51.6%	9.3%	-2.8%	-39.8M	2.34B	-9.1M	1.73	35.62	47,315	82,012	105,308	115,676
2022-05-19	$425.20	$540.00	49.6%	14.4%	55.2%	100.0%	52.2%	9.1%	-3.0%	-42.2M	2.27B	-9.9M	1.32	36.72	30,846	40,842	123,082	133,916
2022-05-20	$415.29	$540.00	50.6%	14.8%	55.1%	100.0%	51.5%	9.2%	-3.3%	-44.2M	2.39B	-9.8M	1.26	21.07	31,465	39,748	129,721	139,047
2022-05-23	$427.13	$520.00	48.9%	14.8%	57.3%	95.4%	54.1%	9.8%	-2.0%	-27.1M	1.61B	-10.5M	1.16	17.79	27,137	31,484	106,497	127,121
2022-05-24	$437.90	$520.00	46.2%	14.1%	58.9%	87.8%	51.8%	8.7%	-2.0%	-22.0M	1.32B	-11.4M	1.24	33.98	19,349	23,940	116,220	141,934
2022-05-25	$440.70	$520.00	45.9%	14.3%	59.1%	87.0%	53.2%	7.7%	-2.1%	-19.7M	1.20B	-11.6M	1.04	34.55	23,449	24,338	119,712	145,298
2022-05-26	$466.29	$515.00	43.9%	13.9%	63.4%	81.3%	50.1%	5.1%	-3.1%	2.0M	253.4M	-12.6M	0.96	29.45	75,754	72,703	127,319	152,705
2022-05-27	$470.19	$510.00	32.0%	9.3%	61.9%	48.4%	33.8%	4.2%	0.3%	37.3M	104.4M	-11.8M	0.60	9.63	95,273	57,399	152,241	187,040
2022-05-31	$467.59	$510.00	30.7%	9.0%	61.7%	44.8%	34.1%	4.8%	-0.7%	3.1M	440.9M	-11.4M	1.16	18.76	24,706	28,549	123,735	143,320