GOOG Options History — May 2013

In May 2013, GOOG traded between $20.49 and $22.87. ATM implied volatility averaged 19.1%, placing in the 12.4% IV rank vs the trailing year. The 30-day expected move averaged 5.5%. IV traded below realized volatility by 3.2% (HV 20d: 22.3%). Max pain ranged from $20.23 to $22.73. Net GEX was positive for 16 of 22 trading days. Term structure was in contango for 17 of 22 days. Put/call ratio averaged 0.96.

Notable Days

2013-05-15: Highest Volume — 7,797,140 contracts
2013-05-15: Largest IV spike — 12.2% change
2013-05-16: Highest IV Rank — 17.1%
2013-05-16: Largest Expected Move — 6.0%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$21.89	$20.49	$22.87	$20.49	$21.76
Max Pain	$21.46	$20.23	$22.73	$20.23	$21.85
ATM IV	19.1%	16.6%	20.8%	16.6%	20.0%
Expected Move	5.5%	4.8%	6.0%	4.8%	5.8%
HV 20d	22.3%	18.8%	24.3%	24.3%	20.9%
HV 60d	19.3%	18.0%	20.1%	18.0%	19.5%
IV Rank	12.4%	5.8%	17.1%	5.8%	14.9%
IV Percentile	31.1%	8.7%	46.8%	8.7%	43.7%
Term Structure	1.0%	-1.0%	4.6%	0.1%	-0.4%
VWIV	19.8%	16.7%	22.4%	16.7%	20.0%
Skew 25d	2.1%	1.2%	3.7%	2.1%	1.6%
Skew 10d	4.8%	2.3%	8.5%	4.8%	2.3%
Call IV 25d	18.6%	16.1%	20.5%	16.1%	19.7%
Put IV 25d	20.7%	18.2%	22.8%	18.3%	21.3%
Bid-Ask Spread %	33.26	9.68	61.14	15.38	61.14
Gamma HHI	0.11	0.05	0.60	0.08	0.23
Net GEX	201.3M	-232.0M	1.27B	209.7M	-220.8M
Net DEX	-6.29B	-11.48B	-2.31B	-3.85B	-3.63B
Net VEX	-36.8M	-40.1M	-33.4M	-33.6M	-39.6M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.96	0.74	1.24	1.01	1.06
Total Volume	4,255,874.545	1,658,500	7,797,140	1,658,500	3,407,660
Total OI	15,811,457.273	13,445,900	19,013,720	13,636,380	16,879,460

Daily Data (22 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
2013-05-01	$20.49	$20.23	16.6%	4.8%	24.3%	5.8%	16.7%	2.1%	0.1%	209.7M	-3.85B	-33.6M	1.01	15.38	824,860	833,640	6,489,400	7,146,980
2013-05-02	$20.72	$20.48	16.8%	4.8%	23.9%	6.2%	16.9%	2.1%	0.2%	396.3M	-5.07B	-33.7M	0.84	34.44	1,904,460	1,604,880	6,596,060	7,337,700
2013-05-03	$21.12	$20.73	17.4%	5.0%	23.7%	8.0%	17.7%	1.9%	0.1%	482.0M	-6.96B	-33.5M	0.76	43.92	3,132,360	2,393,280	6,782,620	7,748,740
2013-05-06	$21.52	$21.48	19.2%	5.5%	23.6%	12.6%	19.5%	2.3%	-0.2%	284.7M	-6.95B	-33.4M	0.80	18.42	2,132,900	1,696,020	6,372,640	7,073,260
2013-05-07	$21.41	$21.48	18.8%	5.4%	23.9%	11.6%	19.2%	2.4%	0.2%	274.1M	-6.44B	-34.5M	1.07	14.07	1,490,200	1,597,960	6,739,300	7,755,300
2013-05-08	$21.82	$21.73	19.2%	5.5%	24.1%	12.8%	19.6%	2.5%	0.3%	341.1M	-8.06B	-34.3M	0.87	43.33	2,383,660	2,063,860	6,947,780	8,362,840
2013-05-09	$21.77	$21.73	18.9%	5.4%	24.2%	11.8%	19.6%	3.7%	0.1%	299.5M	-7.65B	-35.3M	0.88	21.77	2,508,420	2,203,840	7,210,120	8,838,300
2013-05-10	$21.98	$21.98	18.6%	5.3%	24.2%	11.2%	19.0%	2.7%	0.2%	1.27B	-8.70B	-35.9M	0.86	21.06	2,963,640	2,563,040	7,544,180	9,369,480
2013-05-13	$21.92	$21.73	18.8%	5.4%	23.7%	11.6%	20.3%	2.9%	0.2%	230.9M	-7.42B	-36.2M	1.23	16.29	1,148,780	1,412,980	7,137,700	8,457,760
2013-05-14	$22.16	$21.98	18.1%	5.2%	23.5%	9.7%	20.8%	2.2%	0.4%	338.6M	-8.46B	-35.8M	0.92	47.97	1,736,420	1,592,400	7,401,360	8,869,140
2013-05-15	$22.87	$21.98	20.3%	5.8%	24.1%	15.7%	22.4%	1.2%	-1.0%	416.3M	-11.48B	-33.8M	0.74	42.25	4,488,560	3,308,580	7,591,820	9,294,600
2013-05-16	$22.57	$0.00	20.8%	6.0%	22.9%	17.1%	21.5%	2.3%	-0.6%	317.7M	-8.75B	-36.8M	0.83	11.62	3,743,220	3,112,540	7,714,900	9,994,860
2013-05-17	$22.71	$22.73	19.5%	5.6%	18.8%	13.5%	20.5%	2.6%	0.1%	411.2M	-9.30B	-37.6M	0.96	9.68	3,482,360	3,342,860	8,262,860	10,750,860
2013-05-20	$22.69	$20.98	20.2%	5.8%	18.9%	15.4%	21.6%	2.5%	3.9%	116.9M	-6.81B	-38.5M	0.85	46.78	1,952,400	1,665,540	6,514,420	8,068,900
2013-05-21	$22.65	$20.98	19.4%	5.5%	19.0%	13.2%	20.6%	1.8%	4.0%	97.1M	-6.80B	-38.3M	1.24	46.97	1,348,100	1,676,360	6,947,380	8,572,400
2013-05-22	$22.21	$20.98	19.5%	5.6%	21.0%	13.6%	20.0%	1.7%	3.9%	-111.8M	-4.70B	-39.3M	1.08	32.98	1,897,100	2,042,800	7,198,440	8,748,580
2013-05-23	$22.05	$20.98	19.9%	5.7%	21.2%	14.6%	20.3%	1.8%	0.3%	-232.0M	-3.66B	-40.1M	1.11	49.69	2,034,600	2,253,420	7,442,920	9,001,680
2013-05-24	$21.81	$20.98	18.3%	5.2%	21.3%	10.3%	18.9%	1.7%	0.6%	-206.1M	-2.31B	-39.9M	1.21	40.74	2,526,240	3,064,140	7,652,600	9,167,360
2013-05-28	$22.01	$21.85	19.7%	5.7%	20.4%	14.1%	20.0%	1.6%	4.6%	61.5M	-4.78B	-38.6M	0.79	37.90	2,106,660	1,666,620	6,889,320	8,133,360
2013-05-29	$21.69	$21.98	20.2%	5.8%	21.3%	15.3%	20.4%	1.6%	4.6%	-205.3M	-3.00B	-40.0M	0.98	34.16	1,769,920	1,733,660	7,529,200	8,748,340
2013-05-30	$21.75	$21.85	19.9%	5.7%	21.2%	14.6%	20.1%	1.6%	-0.5%	-143.3M	-3.53B	-39.6M	1.01	41.18	1,399,040	1,419,260	7,752,900	8,814,240
2013-05-31	$21.76	$21.85	20.0%	5.8%	20.9%	14.9%	20.0%	1.6%	-0.4%	-220.8M	-3.63B	-39.6M	1.06	61.14	1,653,620	1,754,040	7,893,000	8,986,460