COST Options History — February 2020

In February 2020, COST traded between $277.37 and $323.57. ATM implied volatility averaged 24.5%, placing in the 60.6% IV rank vs the trailing year. The 30-day expected move averaged 6.9%. IV traded above realized volatility by 8.6% (HV 20d: 15.9%). Max pain ranged from $300.00 to $310.00. Net GEX was positive for 14 of 19 trading days. Term structure was in contango for 0 of 19 days. Put/call ratio averaged 0.78.

Notable Days

2020-02-28: Highest Volume — 41,785 contracts
2020-02-28: Largest IV spike — 34.7% change
2020-02-27: Highest IV Rank — 100.0%
2020-02-28: Largest Expected Move — 15.4%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$310.90	$277.37	$323.57	$303.04	$277.37
Max Pain	$304.74	$300.00	$310.00	$300.00	$305.00
ATM IV	24.5%	20.0%	47.3%	22.1%	47.3%
Expected Move	6.9%	4.7%	15.4%	5.4%	15.4%
HV 20d	15.9%	12.0%	30.7%	15.3%	30.7%
HV 60d	13.3%	12.2%	20.9%	12.3%	20.9%
IV Rank	60.6%	40.0%	100.0%	53.4%	100.0%
IV Percentile	72.8%	56.7%	100.0%	68.3%	100.0%
Term Structure	-1.2%	-3.5%	-0.5%	-0.9%	-3.5%
VWIV	24.4%	16.8%	54.9%	18.8%	54.9%
Skew 25d	3.9%	2.6%	11.1%	3.5%	11.1%
Skew 10d	7.3%	5.1%	13.1%	5.9%	13.1%
Call IV 25d	23.0%	19.0%	44.7%	21.5%	44.7%
Put IV 25d	26.9%	21.6%	55.7%	25.0%	55.7%
Bid-Ask Spread %	14.41	4.39	26.34	13.95	26.34
Gamma HHI	0.09	0.04	0.17	0.06	0.04
Net GEX	35.0M	-17.6M	86.0M	-2.6M	-12.4M
Net DEX	-572.6M	-1.13B	710.9M	-258.0M	710.9M
Net VEX	-5.1M	-5.7M	-4.6M	-5.2M	-5.4M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.78	0.48	1.31	0.74	1.01
Total Volume	23,691.737	16,002	41,785	17,161	41,785
Total OI	152,797.211	140,478	162,437	142,466	160,740

Daily Data (19 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
2020-02-03	$303.04	$300.00	22.1%	5.4%	15.3%	53.4%	18.8%	3.5%	-0.9%	-2.6M	-258.0M	-5.2M	0.74	13.95	9,859	7,302	64,044	78,422
2020-02-04	$304.98	$300.00	21.6%	4.9%	15.2%	50.1%	17.0%	3.2%	-1.0%	7.3M	-367.9M	-5.1M	0.54	15.36	10,374	5,628	66,307	80,448
2020-02-05	$308.29	$300.00	21.9%	4.7%	15.5%	52.0%	16.8%	2.8%	-0.9%	37.4M	-589.1M	-5.0M	0.48	4.39	12,968	6,189	68,614	82,018
2020-02-06	$309.77	$300.00	21.2%	5.6%	14.9%	47.8%	20.1%	3.0%	-1.0%	67.9M	-664.8M	-4.8M	0.62	12.84	13,893	8,623	69,090	83,264
2020-02-07	$313.71	$300.00	21.8%	5.7%	14.7%	51.3%	20.7%	3.3%	-1.2%	54.1M	-906.9M	-5.0M	0.57	12.49	16,126	9,218	72,059	84,402
2020-02-10	$313.49	$300.00	21.9%	5.9%	14.1%	52.1%	20.7%	3.3%	-1.1%	47.6M	-756.5M	-4.9M	0.69	14.01	15,909	10,932	66,288	78,056
2020-02-11	$311.22	$305.00	21.8%	6.0%	14.3%	51.8%	20.8%	3.3%	-0.8%	34.4M	-594.3M	-5.0M	0.72	14.73	10,177	7,302	69,921	83,096
2020-02-12	$315.16	$305.00	20.9%	5.8%	14.8%	46.3%	20.6%	3.0%	-0.9%	62.8M	-852.6M	-4.8M	0.52	8.40	11,768	6,159	71,870	85,750
2020-02-13	$317.49	$305.00	21.8%	6.1%	14.9%	51.4%	21.2%	3.3%	-0.8%	81.4M	-992.7M	-4.9M	0.57	12.93	16,511	9,341	73,657	84,848
2020-02-14	$318.12	$305.00	20.4%	5.6%	14.8%	42.7%	20.4%	4.1%	-1.3%	86.0M	-1.05B	-4.7M	1.01	10.45	11,268	11,347	74,118	85,803
2020-02-18	$322.29	$305.00	21.1%	6.0%	15.2%	46.9%	21.3%	2.8%	-1.1%	57.4M	-1.09B	-4.7M	0.62	12.73	17,942	11,046	68,430	78,490
2020-02-19	$323.51	$305.00	20.0%	5.7%	12.1%	40.0%	20.5%	2.6%	-0.5%	59.9M	-1.13B	-4.6M	0.75	13.32	10,942	8,210	70,513	82,057
2020-02-20	$323.57	$310.00	20.9%	6.0%	12.0%	46.2%	21.8%	3.0%	-0.5%	55.2M	-1.09B	-4.9M	0.83	8.78	10,760	8,934	72,826	85,066
2020-02-21	$321.65	$310.00	22.3%	6.5%	12.3%	54.9%	22.7%	3.2%	-1.3%	38.4M	-966.8M	-5.1M	0.74	21.83	13,666	10,157	74,682	87,755
2020-02-24	$314.96	$310.00	25.0%	7.5%	14.1%	71.6%	26.0%	3.7%	-1.1%	14.4M	-438.9M	-5.3M	1.02	24.92	12,735	12,964	65,562	74,916
2020-02-25	$306.15	$310.00	28.9%	8.8%	17.5%	96.3%	29.4%	4.3%	-1.3%	-5.2M	-71.0M	-5.4M	0.76	14.97	17,170	13,023	67,703	77,308
2020-02-26	$306.42	$310.00	28.8%	8.9%	17.5%	95.7%	30.6%	4.8%	-1.3%	-1.5M	-92.2M	-5.7M	1.25	16.69	10,037	12,539	75,700	79,997
2020-02-27	$295.91	$305.00	35.1%	11.0%	21.3%	100.0%	38.7%	5.9%	-2.2%	-17.6M	316.0M	-5.6M	1.31	14.62	11,838	15,501	76,438	82,889
2020-02-28	$277.37	$305.00	47.3%	15.4%	30.7%	100.0%	54.9%	11.1%	-3.5%	-12.4M	710.9M	-5.4M	1.01	26.34	20,836	20,949	77,286	83,454