GOOG Options History — April 2008

In April 2008, GOOG traded between $11.16 and $14.34. ATM implied volatility averaged 41.9%, placing in the 63.0% IV rank vs the trailing year. The 30-day expected move averaged 11.6%. IV traded below realized volatility by 17.9% (HV 20d: 59.7%). Max pain ranged from $11.24 to $12.74. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 1 of 21 days. Put/call ratio averaged 0.68.

Notable Days

2008-04-18: Highest Volume — 20,318,780 contracts
2008-04-18: Largest IV drop — 30.7% change
2008-04-09: Highest IV Rank — 95.1%
2008-04-17: Largest Expected Move — 13.8%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$12.46	$11.16	$14.34	$11.63	$14.34
Max Pain	$11.75	$11.24	$12.74	$11.24	$12.74
ATM IV	41.9%	32.7%	55.0%	45.6%	34.3%
Expected Move	11.6%	9.4%	13.8%	13.1%	9.8%
HV 20d	59.7%	42.4%	76.6%	52.6%	71.0%
HV 60d	52.1%	46.9%	60.4%	47.6%	55.5%
IV Rank	63.0%	40.5%	95.1%	72.0%	44.4%
IV Percentile	80.6%	57.9%	99.6%	90.9%	64.7%
Term Structure	-2.7%	-6.9%	0.1%	-4.9%	0.1%
VWIV	40.6%	32.8%	48.3%	47.0%	35.1%
Skew 25d	2.9%	-1.0%	8.3%	8.3%	0.4%
Skew 10d	4.7%	-2.4%	14.3%	14.3%	0.5%
Call IV 25d	39.3%	32.5%	46.1%	42.1%	34.6%
Put IV 25d	42.2%	33.0%	50.6%	50.5%	35.0%
Bid-Ask Spread %	15.65	7.61	25.73	11.88	10.82
Gamma HHI	0.07	0.05	0.19	0.06	0.06
Net GEX	94.8M	34.2M	287.0M	53.0M	162.7M
Net DEX	-2.53B	-9.90B	424.8M	-623.2M	-6.74B
Net VEX	-32.2M	-38.0M	-27.4M	-29.6M	-38.0M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.68	0.47	0.85	0.69	0.79
Total Volume	4,410,681.905	1,965,600	20,318,780	3,495,040	3,746,800
Total OI	19,132,742.857	16,705,400	23,770,680	16,705,400	20,359,140

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
2008-04-01	$11.63	$11.24	45.6%	13.1%	52.6%	72.0%	47.0%	8.3%	-4.9%	53.0M	-623.2M	-29.6M	0.69	11.88	2,069,220	1,425,820	10,152,500	6,552,900
2008-04-02	$11.63	$11.24	45.7%	13.1%	51.5%	72.4%	46.4%	6.3%	-5.3%	56.8M	-652.7M	-30.0M	0.73	11.97	1,858,180	1,348,100	10,511,940	6,823,580
2008-04-03	$11.37	$11.24	47.9%	13.7%	52.2%	77.8%	48.3%	4.5%	-6.3%	35.6M	-38.7M	-29.0M	0.77	12.64	1,613,220	1,243,880	10,487,040	6,854,120
2008-04-07	$11.91	$11.24	51.6%	12.0%	52.9%	86.8%	41.5%	4.4%	-3.0%	83.2M	-1.49B	-30.7M	0.54	15.55	3,020,380	1,628,740	10,862,140	7,064,580
2008-04-08	$11.68	$11.24	53.5%	12.4%	53.6%	91.4%	43.1%	4.8%	-3.2%	67.7M	-877.2M	-30.3M	0.81	19.97	1,432,680	1,166,720	11,216,720	7,282,720
2008-04-09	$11.59	$11.24	55.0%	12.6%	50.4%	95.1%	43.8%	5.0%	-2.9%	62.1M	-632.1M	-29.8M	0.64	19.34	2,216,340	1,427,940	11,453,080	7,400,280
2008-04-10	$11.72	$11.24	42.6%	12.2%	46.0%	64.8%	42.6%	4.9%	-2.9%	80.3M	-1.00B	-30.3M	0.61	22.72	1,845,760	1,134,860	11,627,620	7,491,680
2008-04-11	$11.42	$11.49	43.9%	12.6%	47.1%	67.9%	44.5%	4.0%	-3.1%	50.6M	-231.3M	-29.2M	0.84	25.73	1,412,860	1,190,740	11,747,660	7,560,160
2008-04-14	$11.28	$11.49	47.4%	13.6%	47.3%	76.6%	47.0%	4.3%	-4.6%	43.3M	71.0M	-28.2M	0.73	22.06	1,982,700	1,457,140	11,885,800	7,640,600
2008-04-15	$11.16	$11.49	45.1%	12.9%	47.3%	71.0%	45.3%	4.2%	-4.1%	34.2M	424.8M	-27.6M	0.83	17.17	2,432,480	2,017,140	12,324,040	7,819,700
2008-04-16	$11.36	$11.24	44.6%	12.8%	44.8%	69.6%	45.0%	4.5%	-5.1%	61.4M	-129.3M	-27.6M	0.77	18.70	2,972,880	2,282,840	12,758,100	8,110,900
2008-04-17	$11.23	$11.24	48.3%	13.8%	42.4%	78.7%	47.1%	4.8%	-6.9%	37.8M	288.5M	-27.4M	0.85	24.45	4,560,600	3,884,080	12,997,420	8,217,440
2008-04-18	$13.47	$11.24	33.5%	9.6%	76.4%	42.4%	34.1%	0.5%	-0.2%	287.0M	-9.90B	-32.3M	0.63	10.02	12,479,300	7,839,480	14,410,960	9,359,720
2008-04-21	$13.43	$12.24	35.6%	10.2%	76.6%	47.6%	36.1%	-0.9%	-0.9%	111.1M	-4.00B	-34.8M	0.53	16.22	2,354,480	1,250,120	10,316,860	6,449,080
2008-04-22	$13.86	$12.24	36.1%	10.4%	74.7%	48.9%	36.3%	0.5%	-1.1%	123.6M	-5.11B	-34.9M	0.82	11.04	3,381,780	2,788,940	10,304,780	6,449,760
2008-04-23	$13.65	$12.49	34.8%	10.0%	74.4%	45.5%	35.2%	-0.9%	-0.4%	114.3M	-4.23B	-37.3M	0.47	7.61	1,690,200	794,000	11,210,400	7,497,320
2008-04-24	$13.56	$12.49	33.6%	9.6%	74.6%	42.8%	34.1%	-1.0%	-0.1%	119.0M	-4.03B	-37.3M	0.49	12.22	1,613,220	791,360	11,580,560	7,649,320
2008-04-25	$13.59	$12.49	32.7%	9.4%	73.2%	40.5%	32.8%	0.5%	-0.1%	127.6M	-4.23B	-37.2M	0.60	15.24	1,227,180	738,420	11,841,660	7,731,440
2008-04-28	$13.79	$12.49	33.5%	9.6%	72.6%	42.5%	33.8%	0.6%	-0.7%	140.9M	-4.81B	-37.1M	0.59	13.19	1,317,200	778,740	11,947,220	7,864,900
2008-04-29	$13.95	$12.74	33.9%	9.7%	72.6%	43.3%	34.2%	1.2%	-1.1%	139.5M	-5.24B	-37.0M	0.57	10.09	1,406,840	800,960	11,963,520	8,008,240
2008-04-30	$14.34	$12.74	34.3%	9.8%	71.0%	44.4%	35.1%	0.4%	0.1%	162.7M	-6.74B	-38.0M	0.79	10.82	2,092,420	1,654,380	12,248,080	8,111,060