COST Options History — April 2014

In April 2014, COST traded between $110.65 and $115.68. ATM implied volatility averaged 14.3%, placing in the 20.8% IV rank vs the trailing year. The 30-day expected move averaged 5.2%. IV traded above realized volatility by 3.6% (HV 20d: 10.7%). Max pain ranged from $90.00 to $90.00. Net GEX was positive for 16 of 21 trading days. Term structure was in contango for 16 of 21 days. Put/call ratio averaged 0.58.

Notable Days

2014-04-09: Highest Volume — 28,298 contracts
2014-04-16: Largest IV drop — 9.1% change
2014-04-08: Highest IV Rank — 28.3%
2014-04-11: Largest Expected Move — 5.4%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$113.20	$110.65	$115.68	$111.86	$115.68
Max Pain	$90.00	$90.00	$90.00	$90.00	$90.00
ATM IV	14.3%	12.8%	15.5%	13.7%	15.3%
Expected Move	5.2%	5.1%	5.4%	5.4%	5.1%
HV 20d	10.7%	8.5%	13.1%	13.1%	10.4%
HV 60d	15.4%	13.6%	17.9%	17.9%	13.6%
IV Rank	20.8%	11.8%	28.3%	17.4%	26.7%
IV Percentile	19.8%	1.6%	43.7%	7.9%	38.1%
Term Structure	0.6%	-1.0%	2.1%	0.6%	0.0%
VWIV	18.9%	17.6%	20.2%	19.1%	17.7%
Skew 25d	1.9%	0.5%	2.6%	1.8%	2.3%
Skew 10d	4.0%	1.3%	5.8%	3.1%	5.8%
Call IV 25d	13.7%	12.2%	15.0%	13.2%	14.6%
Put IV 25d	15.6%	14.0%	17.3%	15.0%	16.9%
Bid-Ask Spread %	8.22	6.69	9.44	7.05	8.84
Gamma HHI	0.24	0.11	0.65	0.16	0.22
Net GEX	6.0M	-76.6M	42.1M	-13.5M	19.8M
Net DEX	-95.2M	-224.3M	67.7M	36.6M	-224.3M
Net VEX	-2.4M	-2.5M	-2.2M	-2.2M	-2.5M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.58	0.17	2.36	0.17	0.42
Total Volume	10,863.048	4,317	28,298	14,228	4,722
Total OI	151,728	127,553	175,675	145,611	137,482

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
2014-04-01	$111.86	$90.00	13.7%	5.4%	13.1%	17.4%	19.1%	1.8%	0.6%	-13.5M	36.6M	-2.2M	0.17	7.05	12,197	2,031	80,543	65,068
2014-04-02	$111.55	$90.00	13.9%	5.4%	13.1%	18.3%	19.4%	1.7%	0.6%	-2.6M	27.8M	-2.3M	0.37	6.69	10,312	3,789	88,036	65,905
2014-04-03	$111.70	$90.00	13.8%	5.4%	8.9%	18.2%	19.2%	1.6%	0.8%	3.2M	-12.4M	-2.3M	0.28	7.67	7,312	2,053	93,429	67,744
2014-04-04	$110.65	$90.00	14.2%	5.3%	9.4%	20.6%	19.2%	0.5%	0.5%	-7.0M	67.7M	-2.3M	1.21	6.88	5,447	6,581	96,109	68,271
2014-04-07	$110.79	$90.00	15.3%	5.4%	8.5%	27.2%	20.0%	1.6%	-0.3%	-1.1M	37.5M	-2.4M	0.56	7.52	3,732	2,105	92,720	67,315
2014-04-08	$112.66	$90.00	15.5%	5.3%	10.7%	28.3%	17.8%	1.6%	-0.7%	6.0M	-98.3M	-2.4M	0.30	7.59	12,662	3,777	94,316	67,761
2014-04-09	$113.05	$90.00	14.7%	5.3%	10.7%	23.6%	19.8%	1.9%	-1.0%	10.3M	-131.0M	-2.4M	0.39	8.18	20,401	7,897	97,073	68,699
2014-04-10	$112.08	$90.00	14.9%	5.4%	10.8%	24.4%	19.9%	2.0%	0.8%	3.2M	-57.5M	-2.5M	0.58	8.46	11,974	6,990	103,355	70,627
2014-04-11	$112.08	$90.00	15.2%	5.4%	10.5%	26.2%	20.2%	2.0%	0.6%	-76.6M	-59.2M	-2.5M	2.36	8.14	7,738	18,230	103,454	72,221
2014-04-14	$112.56	$90.00	14.4%	5.3%	10.6%	21.6%	19.7%	2.3%	0.7%	8.2M	-63.6M	-2.5M	0.77	8.31	4,730	3,654	95,476	67,197
2014-04-15	$112.06	$90.00	15.2%	5.4%	10.6%	26.5%	20.2%	2.6%	-0.8%	1.8M	-30.5M	-2.5M	0.38	9.44	4,468	1,697	97,529	68,904
2014-04-16	$113.49	$90.00	13.8%	5.2%	11.2%	18.1%	19.7%	2.0%	0.6%	16.7M	-110.0M	-2.4M	0.18	8.06	7,550	1,366	94,900	68,293
2014-04-17	$113.50	$90.00	13.6%	5.2%	11.1%	17.0%	18.7%	1.9%	0.4%	21.8M	-121.4M	-2.4M	0.42	8.11	7,058	2,978	95,874	68,402
2014-04-21	$114.10	$90.00	13.3%	5.1%	11.1%	14.9%	18.6%	1.8%	1.9%	11.1M	-136.3M	-2.4M	0.56	8.86	4,220	2,384	70,333	57,220
2014-04-22	$113.56	$90.00	13.0%	5.1%	11.1%	13.2%	18.1%	1.9%	1.8%	10.3M	-107.2M	-2.4M	0.48	9.29	2,924	1,393	72,033	58,682
2014-04-23	$114.79	$90.00	12.8%	5.1%	11.6%	11.8%	18.0%	1.8%	2.0%	17.7M	-184.8M	-2.4M	0.27	9.20	6,192	1,671	73,141	59,158
2014-04-24	$115.03	$90.00	13.2%	5.1%	10.6%	14.5%	17.6%	1.9%	2.1%	21.8M	-204.8M	-2.4M	0.91	8.46	2,666	2,419	74,817	59,941
2014-04-25	$115.01	$90.00	13.7%	5.1%	10.4%	17.5%	18.3%	1.4%	2.0%	42.1M	-203.4M	-2.4M	0.30	8.53	4,787	1,449	74,702	61,334
2014-04-28	$115.59	$90.00	14.7%	5.1%	10.3%	23.4%	18.3%	2.2%	0.2%	17.0M	-218.8M	-2.4M	0.68	8.38	6,084	4,124	73,190	59,316
2014-04-29	$115.40	$90.00	15.5%	5.1%	10.4%	28.0%	18.2%	2.4%	-0.0%	16.5M	-204.5M	-2.5M	0.57	8.91	2,784	1,576	74,912	60,806
2014-04-30	$115.68	$90.00	15.3%	5.1%	10.4%	26.7%	17.7%	2.3%	0.0%	19.8M	-224.3M	-2.5M	0.42	8.84	3,336	1,386	75,786	61,696