COST Options History — February 2014

In February 2014, COST traded between $110.18 and $116.80. ATM implied volatility averaged 18.7%, placing in the 36.4% IV rank vs the trailing year. The 30-day expected move averaged 5.9%. IV traded below realized volatility by 1.2% (HV 20d: 20.0%). Max pain ranged from $90.00 to $90.00. Net GEX was positive for 14 of 19 trading days. Term structure was in contango for 1 of 19 days. Put/call ratio averaged 0.77.

Notable Days

2014-02-06: Highest Volume — 22,440 contracts
2014-02-06: Largest IV drop — 10.9% change
2014-02-05: Highest IV Rank — 53.7%
2014-02-03: Largest Expected Move — 6.3%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$114.33	$110.18	$116.80	$110.18	$116.80
Max Pain	$90.00	$90.00	$90.00	$90.00	$90.00
ATM IV	18.7%	17.2%	22.5%	20.8%	17.2%
Expected Move	5.9%	5.6%	6.3%	6.3%	5.6%
HV 20d	20.0%	17.4%	25.6%	22.7%	17.4%
HV 60d	17.0%	15.5%	17.5%	17.0%	17.3%
IV Rank	36.4%	29.2%	53.7%	46.1%	29.2%
IV Percentile	82.0%	67.9%	96.4%	93.7%	67.9%
Term Structure	-0.4%	-1.6%	0.4%	-1.0%	-0.3%
VWIV	21.4%	19.6%	23.0%	22.2%	19.6%
Skew 25d	1.9%	1.6%	2.5%	2.5%	1.8%
Skew 10d	4.3%	3.1%	6.3%	3.4%	3.7%
Call IV 25d	18.2%	16.8%	22.0%	20.5%	16.8%
Put IV 25d	20.2%	18.5%	24.2%	23.0%	18.5%
Bid-Ask Spread %	7.46	4.64	17.97	8.11	5.47
Gamma HHI	0.19	0.11	0.86	0.12	0.15
Net GEX	-8.5M	-311.6M	22.3M	-5.0M	15.4M
Net DEX	-85.9M	-202.1M	149.1M	149.1M	-202.1M
Net VEX	-2.3M	-2.4M	-2.0M	-2.0M	-2.3M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.77	0.33	2.58	0.40	0.47
Total Volume	10,428.632	3,302	22,440	13,816	9,508
Total OI	136,352.526	125,760	145,545	129,243	134,360

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
2014-02-03	$110.18	$90.00	20.8%	6.3%	22.7%	46.1%	22.2%	2.5%	-1.0%	-5.0M	149.1M	-2.0M	0.40	8.11	9,838	3,978	70,445	58,798
2014-02-04	$110.89	$90.00	20.5%	6.2%	22.9%	44.5%	21.9%	2.5%	-0.4%	-2.8M	101.4M	-2.2M	0.37	11.70	8,143	3,015	75,832	59,761
2014-02-05	$110.51	$90.00	22.5%	6.2%	22.9%	53.7%	22.7%	2.2%	-1.6%	571.1K	106.3M	-2.2M	0.54	17.97	8,747	4,748	80,256	60,384
2014-02-06	$114.26	$90.00	20.1%	6.1%	25.6%	42.4%	22.8%	1.9%	-0.2%	1.8M	-117.9M	-2.4M	0.43	9.38	15,696	6,744	82,505	62,187
2014-02-07	$114.04	$90.00	19.6%	6.1%	21.2%	40.1%	21.5%	1.7%	-0.5%	-311.6M	-107.2M	-2.3M	1.30	9.47	6,367	8,275	82,643	62,902
2014-02-10	$113.85	$90.00	19.1%	6.0%	21.2%	37.9%	23.0%	1.9%	-0.7%	15.8M	-86.4M	-2.3M	2.58	5.26	4,601	11,879	76,713	54,460
2014-02-11	$114.99	$90.00	18.4%	6.0%	19.4%	34.8%	22.1%	1.6%	-0.4%	15.1M	-128.6M	-2.4M	0.74	10.38	7,459	5,528	76,375	64,052
2014-02-12	$114.81	$90.00	18.3%	5.9%	18.8%	34.5%	22.0%	1.7%	-0.6%	15.1M	-111.3M	-2.3M	0.33	5.20	5,600	1,868	74,615	63,675
2014-02-13	$115.81	$90.00	17.9%	5.9%	19.1%	32.8%	21.7%	1.7%	-0.4%	22.3M	-175.4M	-2.3M	0.58	6.80	3,390	1,974	76,132	63,789
2014-02-14	$116.10	$90.00	17.9%	5.8%	19.0%	32.7%	21.4%	1.7%	-0.4%	19.4M	-201.5M	-2.3M	0.35	6.22	7,423	2,630	77,372	64,505
2014-02-18	$115.36	$90.00	18.0%	5.8%	19.0%	32.9%	21.8%	2.1%	-0.2%	10.0M	-133.0M	-2.3M	0.69	6.01	4,260	2,931	74,325	62,349
2014-02-19	$114.91	$90.00	18.3%	5.8%	18.6%	34.1%	21.0%	2.1%	-0.1%	7.4M	-100.5M	-2.3M	0.60	6.58	3,331	1,984	75,229	63,838
2014-02-20	$115.06	$90.00	18.1%	5.8%	18.2%	33.4%	20.5%	1.9%	-0.1%	10.0M	-105.2M	-2.2M	1.21	6.07	3,352	4,048	73,929	63,733
2014-02-21	$113.19	$90.00	17.9%	5.7%	18.9%	32.7%	20.6%	2.4%	0.4%	-1.3M	5.3M	-2.2M	0.84	6.12	7,533	6,297	74,044	64,408
2014-02-24	$113.94	$90.00	18.1%	5.7%	18.9%	33.3%	21.0%	2.0%	-0.4%	-666.8K	-64.2M	-2.2M	0.64	5.83	4,667	3,003	68,220	57,540
2014-02-25	$115.46	$90.00	18.1%	5.6%	19.2%	33.4%	20.8%	1.8%	-0.6%	7.0M	-140.7M	-2.2M	1.18	4.64	3,424	4,027	69,394	58,737
2014-02-26	$115.88	$90.00	17.8%	5.6%	18.9%	32.0%	19.8%	1.8%	-0.4%	8.4M	-152.1M	-2.2M	0.89	5.24	4,542	4,032	70,129	59,956
2014-02-27	$116.22	$90.00	17.6%	5.6%	17.4%	31.4%	20.7%	1.9%	-0.3%	11.7M	-169.0M	-2.3M	0.55	5.24	2,133	1,169	71,797	61,309
2014-02-28	$116.80	$90.00	17.2%	5.6%	17.4%	29.2%	19.6%	1.8%	-0.3%	15.4M	-202.1M	-2.3M	0.47	5.47	6,478	3,030	72,751	61,609