COST Options History — November 2013

In November 2013, COST traded between $119.62 and $125.43. ATM implied volatility averaged 14.7%, placing in the 17.9% IV rank vs the trailing year. The 30-day expected move averaged 5.9%. IV traded below realized volatility by 0.6% (HV 20d: 15.3%). Max pain ranged from $90.00 to $90.00. Net GEX was positive for 20 of 20 trading days. Term structure was in contango for 12 of 20 days. Put/call ratio averaged 0.64.

Notable Days

2013-11-06: Highest Volume — 27,682 contracts
2013-11-06: Largest IV spike — 14.5% change
2013-11-29: Highest IV Rank — 22.7%
2013-11-01: Largest Expected Move — 6.1%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$123.32	$119.62	$125.43	$119.62	$125.43
Max Pain	$90.00	$90.00	$90.00	$90.00	$90.00
ATM IV	14.7%	13.0%	15.8%	13.0%	15.8%
Expected Move	5.9%	5.8%	6.1%	6.1%	5.9%
HV 20d	15.3%	13.5%	16.5%	14.8%	14.6%
HV 60d	15.1%	14.0%	16.0%	14.9%	14.0%
IV Rank	17.9%	9.8%	22.7%	9.8%	22.7%
IV Percentile	25.6%	2.4%	44.0%	2.4%	44.0%
Term Structure	0.2%	-1.1%	1.5%	0.9%	-0.6%
VWIV	22.1%	20.1%	24.6%	21.6%	24.2%
Skew 25d	2.0%	1.6%	2.7%	1.8%	1.8%
Skew 10d	4.6%	3.4%	6.3%	4.9%	3.7%
Call IV 25d	14.2%	12.3%	15.1%	12.3%	15.1%
Put IV 25d	16.2%	14.1%	17.4%	14.1%	16.9%
Bid-Ask Spread %	8.30	4.25	40.29	22.60	7.04
Gamma HHI	0.23	0.16	0.34	0.34	0.19
Net GEX	13.8M	8.9M	20.9M	10.5M	12.7M
Net DEX	-296.9M	-386.7M	-231.4M	-231.4M	-315.5M
Net VEX	-1.6M	-1.6M	-1.5M	-1.6M	-1.6M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.64	0.29	1.11	0.47	0.45
Total Volume	7,942.15	3,300	27,682	11,472	3,300
Total OI	103,313.8	94,142	117,360	109,040	102,751

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
2013-11-01	$119.62	$90.00	13.0%	6.1%	14.8%	9.8%	21.6%	1.8%	0.9%	10.5M	-231.4M	-1.6M	0.47	22.60	7,815	3,657	50,837	58,203
2013-11-04	$120.34	$90.00	13.3%	6.0%	14.3%	11.2%	24.6%	2.1%	1.0%	9.4M	-261.5M	-1.6M	0.41	4.28	4,789	1,943	49,773	55,525
2013-11-05	$120.13	$90.00	13.3%	6.1%	13.5%	11.6%	24.2%	2.0%	1.2%	9.1M	-252.4M	-1.6M	0.29	7.29	3,452	988	50,130	56,092
2013-11-06	$124.07	$90.00	15.3%	6.0%	15.8%	20.4%	24.4%	2.6%	0.5%	8.9M	-386.7M	-1.5M	0.44	40.29	19,259	8,423	50,527	55,430
2013-11-07	$122.78	$90.00	14.3%	5.9%	16.5%	16.2%	22.2%	1.7%	0.7%	10.6M	-354.2M	-1.6M	0.68	10.16	6,259	4,255	56,600	60,490
2013-11-08	$122.78	$90.00	14.1%	5.9%	16.5%	15.0%	21.5%	1.6%	0.7%	16.9M	-364.6M	-1.6M	0.62	6.80	9,665	5,953	57,249	60,111
2013-11-11	$123.02	$90.00	14.5%	5.9%	16.5%	16.9%	21.4%	1.8%	0.6%	15.5M	-330.4M	-1.5M	0.57	4.37	5,172	2,932	52,495	51,937
2013-11-12	$122.45	$90.00	14.7%	6.0%	16.3%	17.8%	21.5%	1.9%	1.5%	13.7M	-305.0M	-1.6M	0.65	7.10	3,734	2,420	53,334	52,494
2013-11-13	$123.17	$90.00	14.5%	5.9%	15.4%	16.8%	23.3%	1.6%	0.5%	12.4M	-249.0M	-1.6M	0.38	4.93	4,756	1,821	46,261	53,235
2013-11-14	$123.74	$90.00	15.7%	5.9%	15.3%	22.6%	22.9%	2.6%	-1.1%	19.9M	-286.3M	-1.5M	0.60	4.76	5,054	3,050	48,124	52,917
2013-11-15	$124.29	$90.00	15.0%	5.9%	15.1%	19.3%	21.9%	2.0%	-0.9%	20.9M	-303.7M	-1.5M	0.68	4.90	4,808	3,264	48,813	53,704
2013-11-18	$123.31	$90.00	15.2%	5.8%	15.5%	20.0%	20.3%	2.4%	0.1%	13.5M	-255.1M	-1.6M	0.86	5.30	3,207	2,756	46,584	47,558
2013-11-19	$123.63	$90.00	14.9%	5.9%	15.5%	19.0%	22.2%	2.1%	0.2%	14.2M	-268.6M	-1.6M	1.11	4.25	1,975	2,198	47,661	49,041
2013-11-20	$122.76	$90.00	14.8%	5.8%	15.6%	18.4%	21.4%	2.7%	0.4%	12.3M	-236.7M	-1.6M	0.89	5.89	2,572	2,280	48,554	49,984
2013-11-21	$123.89	$90.00	14.7%	5.8%	15.3%	17.8%	20.3%	2.0%	-0.1%	15.0M	-278.1M	-1.6M	0.61	6.31	2,436	1,485	48,770	50,815
2013-11-22	$125.21	$90.00	14.9%	5.8%	15.5%	18.9%	20.6%	2.0%	-0.5%	18.3M	-328.3M	-1.6M	0.66	5.36	4,998	3,297	49,166	51,204
2013-11-25	$125.17	$90.00	15.3%	5.8%	15.4%	20.8%	20.1%	1.9%	-0.1%	13.8M	-309.2M	-1.5M	0.74	4.54	3,350	2,484	47,660	50,582
2013-11-26	$125.18	$90.00	15.6%	5.9%	15.1%	22.0%	21.1%	1.9%	-0.2%	14.2M	-307.0M	-1.6M	0.74	5.02	3,079	2,270	48,553	51,372
2013-11-27	$125.38	$90.00	15.3%	5.9%	14.6%	20.8%	22.8%	1.9%	-0.5%	14.8M	-314.0M	-1.6M	0.87	4.76	1,967	1,720	49,279	52,461
2013-11-29	$125.43	$90.00	15.8%	5.9%	14.6%	22.7%	24.2%	1.8%	-0.6%	12.7M	-315.5M	-1.6M	0.45	7.04	2,282	1,018	49,500	53,251