COST Options History — November 2019

In November 2019, COST traded between $295.78 and $304.79. ATM implied volatility averaged 20.7%, placing in the 38.4% IV rank vs the trailing year. The 30-day expected move averaged 6.3%. IV traded above realized volatility by 8.4% (HV 20d: 12.2%). Max pain ranged from $295.00 to $297.50. Net GEX was positive for 19 of 20 trading days. Term structure was in contango for 6 of 20 days. Put/call ratio averaged 0.56.

Notable Days

2019-11-07: Highest Volume — 56,850 contracts
2019-11-11: Largest IV spike — 13.7% change
2019-11-20: Highest IV Rank — 55.6%
2019-11-29: Largest Expected Move — 6.9%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$300.95	$295.78	$304.79	$295.78	$299.92
Max Pain	$295.13	$295.00	$297.50	$295.00	$297.50
ATM IV	20.7%	16.3%	23.8%	16.3%	21.9%
Expected Move	6.3%	4.8%	6.9%	4.8%	6.9%
HV 20d	12.2%	10.0%	13.2%	12.3%	10.0%
HV 60d	16.6%	13.4%	19.1%	19.1%	13.4%
IV Rank	38.4%	14.1%	55.6%	14.1%	45.5%
IV Percentile	51.6%	20.6%	75.4%	20.6%	59.1%
Term Structure	0.5%	-1.8%	5.5%	0.6%	-0.7%
VWIV	22.1%	16.6%	24.2%	16.6%	24.2%
Skew 25d	3.0%	2.1%	4.1%	2.1%	2.4%
Skew 10d	6.2%	4.5%	7.5%	4.5%	5.2%
Call IV 25d	19.3%	15.0%	22.3%	15.0%	21.3%
Put IV 25d	22.3%	17.2%	25.5%	17.2%	23.7%
Bid-Ask Spread %	5.30	2.85	10.48	3.39	4.22
Gamma HHI	0.16	0.10	0.28	0.10	0.27
Net GEX	62.8M	-10.6M	158.4M	15.3M	88.8M
Net DEX	-881.5M	-1.29B	-607.1M	-676.7M	-705.8M
Net VEX	-4.9M	-5.1M	-4.7M	-4.7M	-5.1M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.56	0.23	1.04	1.04	0.97
Total Volume	28,444.25	15,855	56,850	19,604	15,855
Total OI	187,719.5	168,397	208,261	175,649	208,261

Daily Data (20 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
2019-11-01	$295.78	$295.00	16.3%	4.8%	12.3%	14.1%	16.6%	2.1%	0.6%	15.3M	-676.7M	-4.7M	1.04	3.39	9,629	9,975	82,308	93,341
2019-11-04	$296.38	$295.00	16.9%	6.4%	12.1%	17.8%	22.3%	2.5%	5.2%	31.3M	-715.7M	-4.8M	0.60	8.12	12,588	7,525	77,922	90,475
2019-11-05	$299.46	$295.00	16.9%	6.3%	12.5%	17.9%	22.7%	2.2%	5.4%	59.4M	-913.4M	-4.8M	0.37	6.43	15,415	5,705	82,055	93,651
2019-11-06	$301.14	$295.00	16.9%	6.2%	11.6%	17.5%	22.4%	2.5%	5.5%	75.5M	-1.03B	-4.9M	0.45	4.66	19,754	8,835	84,884	95,697
2019-11-07	$304.79	$295.00	17.3%	6.0%	12.3%	20.1%	21.3%	2.5%	5.2%	115.6M	-1.29B	-4.7M	0.61	10.48	35,368	21,482	86,343	96,082
2019-11-08	$302.24	$295.00	18.5%	6.2%	12.5%	26.5%	22.0%	3.0%	5.0%	-10.6M	-937.9M	-4.7M	0.69	5.59	23,333	16,030	87,845	100,813
2019-11-11	$300.71	$295.00	21.1%	6.1%	12.5%	40.6%	21.9%	3.6%	-0.9%	62.2M	-864.1M	-4.7M	0.74	3.82	11,997	8,904	83,418	92,372
2019-11-12	$299.95	$295.00	22.1%	6.2%	12.5%	46.1%	21.2%	3.5%	-1.1%	59.6M	-825.1M	-4.7M	0.37	3.88	21,074	7,737	88,034	96,563
2019-11-13	$303.62	$295.00	22.7%	6.2%	13.2%	49.6%	21.1%	3.5%	-1.2%	138.6M	-1.15B	-4.9M	0.23	6.65	31,017	7,152	95,293	100,665
2019-11-14	$304.49	$295.00	22.3%	6.1%	12.3%	47.5%	21.1%	3.6%	-1.1%	158.4M	-1.17B	-4.9M	0.33	4.87	26,286	8,622	98,414	101,957
2019-11-15	$303.04	$295.00	22.0%	6.0%	12.4%	45.9%	21.8%	2.9%	-1.4%	76.2M	-1.04B	-4.9M	0.49	4.80	18,142	8,929	97,361	103,710
2019-11-18	$304.54	$295.00	22.3%	6.3%	12.3%	47.5%	22.4%	3.2%	-1.3%	88.1M	-1.06B	-4.9M	0.45	2.85	19,590	8,777	83,614	89,419
2019-11-19	$302.30	$295.00	23.6%	6.7%	12.6%	54.5%	23.9%	3.3%	-1.6%	55.9M	-871.5M	-4.9M	0.55	4.01	16,522	9,084	84,066	92,210
2019-11-20	$300.66	$295.00	23.8%	6.8%	12.4%	55.6%	23.7%	3.2%	-1.6%	51.6M	-783.7M	-5.0M	0.58	5.60	23,715	13,811	90,347	96,108
2019-11-21	$300.27	$295.00	23.3%	6.8%	12.4%	53.2%	23.9%	3.2%	-1.5%	39.3M	-740.3M	-5.1M	0.58	2.94	10,087	5,867	94,497	101,664
2019-11-22	$298.82	$295.00	22.3%	6.5%	12.5%	47.3%	22.8%	3.0%	-1.8%	18.9M	-607.1M	-5.1M	0.71	7.83	19,428	13,703	96,432	103,375
2019-11-25	$298.98	$295.00	20.7%	6.2%	12.3%	38.6%	21.6%	2.8%	-0.5%	26.9M	-657.4M	-5.0M	0.60	9.02	16,457	9,949	87,010	99,691
2019-11-26	$300.89	$295.00	21.0%	6.5%	12.1%	40.5%	22.2%	4.1%	-0.6%	60.7M	-795.8M	-5.1M	0.47	3.75	16,217	7,677	92,905	103,390
2019-11-27	$300.99	$295.00	21.3%	6.6%	11.4%	41.8%	22.9%	2.9%	-0.8%	44.4M	-790.9M	-5.1M	0.42	3.16	18,731	7,916	95,374	106,824
2019-11-29	$299.92	$297.50	21.9%	6.9%	10.0%	45.5%	24.2%	2.4%	-0.7%	88.8M	-705.8M	-5.1M	0.97	4.22	8,035	7,820	98,587	109,674