COST Options History — June 2023

In June 2023, COST traded between $511.77 and $538.83. ATM implied volatility averaged 15.8%, placing in the 1.3% IV rank vs the trailing year. The 30-day expected move averaged 4.5%. IV traded below realized volatility by 1.4% (HV 20d: 17.1%). Max pain ranged from $495.00 to $505.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 18 of 21 days. Put/call ratio averaged 0.54.

Notable Days

2023-06-02: Highest Volume — 56,638 contracts
2023-06-02: Largest IV drop — 10.0% change
2023-06-01: Highest IV Rank — 6.0%
2023-06-01: Largest Expected Move — 5.9%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$522.63	$511.77	$538.83	$511.77	$538.83
Max Pain	$501.90	$495.00	$505.00	$500.00	$505.00
ATM IV	15.8%	13.6%	19.6%	19.6%	13.6%
Expected Move	4.5%	3.7%	5.9%	5.9%	3.7%
HV 20d	17.1%	11.8%	19.4%	18.3%	12.6%
HV 60d	17.2%	16.8%	17.8%	17.8%	17.2%
IV Rank	1.3%	0.0%	6.0%	6.0%	0.0%
IV Percentile	0.6%	0.0%	3.2%	3.2%	0.0%
Term Structure	0.3%	-0.1%	0.8%	-0.0%	0.4%
VWIV	16.3%	13.4%	20.6%	20.6%	13.4%
Skew 25d	2.9%	2.5%	3.5%	3.5%	2.5%
Skew 10d	6.5%	5.0%	7.9%	7.9%	5.6%
Call IV 25d	14.7%	12.7%	18.0%	18.0%	12.7%
Put IV 25d	17.5%	15.2%	21.5%	21.5%	15.2%
Bid-Ask Spread %	5.28	2.84	8.75	4.44	4.00
Gamma HHI	0.10	0.05	0.23	0.07	0.16
Net GEX	137.4M	52.8M	236.4M	142.9M	195.1M
Net DEX	-1.40B	-2.16B	-792.8M	-1.31B	-2.07B
Net VEX	-10.9M	-11.5M	-10.6M	-11.5M	-10.6M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.54	0.32	0.86	0.48	0.54
Total Volume	30,677.048	15,738	56,638	50,711	37,546
Total OI	228,686.81	181,645	263,349	254,250	209,092

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
2023-06-01	$511.77	$500.00	19.6%	5.9%	18.3%	6.0%	20.6%	3.5%	-0.0%	142.9M	-1.31B	-11.5M	0.48	4.44	34,163	16,548	128,176	126,074
2023-06-02	$511.88	$500.00	17.6%	5.0%	18.3%	0.0%	18.0%	3.0%	0.4%	138.0M	-1.38B	-11.1M	0.37	3.67	41,276	15,362	132,461	130,879
2023-06-05	$518.23	$495.00	17.0%	5.0%	17.7%	0.0%	18.0%	3.0%	0.4%	152.7M	-1.50B	-10.7M	0.54	8.75	26,255	14,162	116,385	118,655
2023-06-06	$515.58	$495.00	16.6%	4.9%	17.8%	0.0%	18.6%	2.9%	0.5%	126.1M	-1.29B	-10.8M	0.61	4.33	15,330	9,335	120,091	123,414
2023-06-07	$512.41	$495.00	17.1%	5.0%	18.0%	2.5%	18.0%	2.8%	0.4%	91.7M	-1.03B	-11.0M	0.62	6.50	17,033	10,520	123,081	126,469
2023-06-08	$520.01	$495.00	16.3%	4.8%	18.6%	0.0%	17.2%	2.9%	0.3%	214.6M	-1.69B	-10.6M	0.46	6.64	27,090	12,544	126,116	131,083
2023-06-09	$517.69	$500.00	16.2%	4.7%	18.7%	0.0%	17.1%	2.9%	0.4%	133.8M	-1.39B	-10.9M	0.32	6.39	32,035	10,139	129,226	134,123
2023-06-12	$520.82	$500.00	16.3%	4.7%	18.7%	0.2%	17.2%	3.1%	0.2%	125.6M	-1.42B	-10.7M	0.70	7.31	12,415	8,646	114,788	123,692
2023-06-13	$521.38	$500.00	15.7%	4.5%	18.6%	0.0%	16.2%	3.0%	-0.0%	137.5M	-1.48B	-10.7M	0.73	5.05	12,598	9,254	117,155	127,250
2023-06-14	$526.42	$505.00	15.2%	4.4%	18.3%	0.0%	15.9%	2.9%	0.4%	196.4M	-1.84B	-10.7M	0.44	5.83	23,831	10,380	119,332	130,669
2023-06-15	$530.51	$505.00	15.5%	4.4%	18.3%	1.5%	15.8%	3.0%	-0.1%	236.4M	-2.16B	-10.7M	0.48	7.31	23,568	11,307	121,294	132,895
2023-06-16	$525.35	$505.00	15.0%	4.3%	18.9%	0.0%	15.3%	2.6%	0.0%	178.2M	-1.72B	-10.6M	0.39	5.02	22,587	8,780	122,547	136,864
2023-06-20	$519.89	$505.00	15.7%	4.5%	19.4%	3.6%	16.6%	3.1%	0.3%	57.2M	-844.0M	-10.9M	0.86	4.38	12,655	10,837	86,310	95,335
2023-06-21	$520.05	$505.00	15.0%	4.3%	18.8%	0.3%	14.7%	2.8%	0.8%	52.8M	-792.8M	-11.0M	0.40	5.77	19,671	7,871	90,042	101,200
2023-06-22	$523.79	$505.00	14.3%	4.1%	17.7%	0.0%	14.8%	2.5%	0.5%	84.9M	-1.06B	-11.0M	0.55	4.44	12,046	6,654	97,283	104,612
2023-06-23	$524.21	$505.00	14.6%	4.1%	17.6%	1.2%	14.6%	2.7%	0.5%	132.5M	-1.09B	-11.0M	0.53	5.77	13,448	7,122	98,585	106,336
2023-06-26	$523.62	$505.00	15.1%	4.3%	17.6%	3.7%	15.4%	2.9%	0.4%	74.0M	-976.0M	-10.9M	0.70	5.12	10,320	7,265	91,752	100,417
2023-06-27	$530.84	$505.00	14.9%	4.1%	12.2%	3.1%	14.7%	2.5%	0.1%	145.8M	-1.49B	-11.0M	0.42	3.70	27,321	11,434	95,612	103,675
2023-06-28	$531.39	$505.00	14.8%	4.1%	12.2%	2.5%	14.5%	2.6%	0.4%	142.1M	-1.48B	-11.2M	0.58	3.67	12,112	7,020	97,910	105,738
2023-06-29	$530.64	$505.00	15.0%	4.1%	11.8%	3.6%	15.0%	2.8%	0.1%	128.0M	-1.40B	-11.2M	0.70	2.84	9,278	6,460	99,030	106,775
2023-06-30	$538.83	$505.00	13.6%	3.7%	12.6%	0.0%	13.4%	2.5%	0.4%	195.1M	-2.07B	-10.6M	0.54	4.00	24,323	13,223	100,462	108,630