GOOG Options History — May 2019

In May 2019, GOOG traded between $55.25 and $59.47. ATM implied volatility averaged 21.0%, placing in the 20.5% IV rank vs the trailing year. The 30-day expected move averaged 6.0%. IV traded below realized volatility by 12.5% (HV 20d: 33.5%). Max pain ranged from $57.25 to $60.00. Net GEX was positive for 9 of 22 trading days. Term structure was in contango for 13 of 22 days. Put/call ratio averaged 0.92.

Notable Days

2019-05-03: Highest Volume — 1,089,700 contracts
2019-05-07: Largest IV spike — 27.9% change
2019-05-31: Highest IV Rank — 33.9%
2019-05-31: Largest Expected Move — 6.8%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$57.54	$55.25	$59.47	$58.46	$55.25
Max Pain	$57.77	$57.25	$60.00	$60.00	$57.25
ATM IV	21.0%	17.1%	24.1%	18.4%	24.1%
Expected Move	6.0%	4.6%	6.8%	5.2%	6.8%
HV 20d	33.5%	24.6%	37.6%	31.2%	24.8%
HV 60d	24.9%	23.5%	26.0%	24.1%	25.6%
IV Rank	20.5%	3.8%	33.9%	9.2%	33.9%
IV Percentile	33.9%	2.8%	50.8%	17.5%	50.8%
Term Structure	0.1%	-0.5%	0.8%	0.3%	-0.1%
VWIV	21.0%	16.1%	24.0%	18.3%	23.6%
Skew 25d	3.4%	1.9%	4.5%	1.9%	3.9%
Skew 10d	7.1%	3.7%	9.6%	3.7%	7.8%
Call IV 25d	19.4%	16.1%	22.2%	17.5%	22.1%
Put IV 25d	22.8%	18.1%	26.0%	19.4%	26.0%
Bid-Ask Spread %	37.82	20.25	48.01	20.25	38.35
Gamma HHI	0.04	0.02	0.12	0.04	0.06
Net GEX	731.0K	-170.5M	296.9M	-69.5M	-167.9M
Net DEX	-267.4M	-2.63B	1.34B	460.8M	1.17B
Net VEX	-23.2M	-24.5M	-21.2M	-21.2M	-22.3M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.92	0.62	1.40	0.78	1.01
Total Volume	570,800	322,500	1,089,700	1,076,140	410,300
Total OI	3,745,932.727	3,300,140	4,315,720	3,726,420	3,679,540

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
2019-05-01	$58.46	$60.00	18.4%	5.2%	31.2%	9.2%	18.3%	1.9%	0.3%	-69.5M	460.8M	-21.2M	0.78	20.25	604,360	471,780	2,023,320	1,703,100
2019-05-02	$57.97	$59.50	19.0%	5.3%	31.2%	11.7%	18.6%	2.1%	0.2%	-170.5M	854.0M	-22.3M	0.88	22.12	567,880	498,600	2,252,780	1,818,020
2019-05-03	$59.25	$59.50	17.1%	4.6%	32.2%	3.8%	16.1%	2.0%	0.4%	295.7M	-1.59B	-23.3M	0.72	37.44	634,160	455,540	2,400,460	1,915,260
2019-05-06	$59.47	$57.50	18.1%	5.4%	32.3%	8.1%	19.3%	2.5%	0.3%	169.8M	-1.96B	-23.2M	0.96	27.93	249,820	239,600	1,919,740	1,687,080
2019-05-07	$58.41	$57.50	23.2%	6.6%	32.8%	30.1%	23.9%	3.8%	-0.2%	11.5M	-510.3M	-24.5M	1.07	35.44	304,800	325,140	1,986,900	1,780,580
2019-05-08	$58.57	$57.50	21.0%	6.2%	32.8%	20.7%	22.2%	3.8%	0.5%	31.0M	-743.2M	-24.3M	1.01	39.50	196,660	198,340	2,076,880	1,891,960
2019-05-09	$58.15	$57.50	22.3%	6.3%	32.8%	26.1%	21.6%	4.5%	-0.1%	-52.3M	-75.4M	-24.3M	1.01	37.97	276,200	279,940	2,101,960	1,932,640
2019-05-10	$58.20	$57.50	19.7%	5.8%	32.8%	14.7%	20.0%	3.7%	-0.5%	-108.0M	-257.9M	-23.3M	0.62	44.28	399,900	247,460	2,166,200	1,956,640
2019-05-13	$56.49	$57.50	23.5%	6.6%	34.0%	31.7%	23.0%	4.4%	-0.4%	-88.1M	933.6M	-22.5M	0.63	38.11	277,400	175,840	1,733,780	1,708,320
2019-05-14	$56.04	$57.50	20.7%	6.1%	33.9%	19.1%	20.8%	4.4%	0.8%	-109.9M	1.34B	-22.5M	0.96	41.40	258,960	247,820	1,921,060	1,798,700
2019-05-15	$58.29	$57.50	19.1%	5.6%	37.2%	12.5%	19.6%	3.2%	0.3%	144.7M	-1.67B	-23.7M	0.67	44.52	364,880	245,780	1,992,340	1,825,420
2019-05-16	$58.88	$57.50	17.7%	5.2%	37.3%	6.2%	18.2%	3.1%	0.4%	296.9M	-2.63B	-23.5M	0.74	48.01	355,720	262,020	2,056,580	1,851,380
2019-05-17	$58.18	$57.50	20.5%	5.8%	37.4%	18.3%	20.4%	3.3%	-0.3%	123.5M	-1.20B	-23.7M	0.88	46.94	323,340	283,480	2,094,480	1,921,160
2019-05-20	$57.00	$57.50	22.7%	6.5%	37.6%	27.9%	24.0%	3.6%	-0.1%	-8.9M	-209.7M	-23.5M	1.40	39.11	156,920	219,320	1,691,180	1,608,960
2019-05-21	$57.43	$57.50	20.8%	6.0%	37.4%	19.8%	21.9%	3.3%	0.2%	5.8M	-584.8M	-23.6M	1.08	40.39	167,880	182,020	1,744,860	1,721,540
2019-05-22	$57.69	$57.50	20.1%	5.7%	37.5%	16.5%	20.7%	3.3%	0.3%	45.5M	-876.4M	-23.4M	1.07	37.16	178,100	190,060	1,794,260	1,756,880
2019-05-23	$56.89	$57.50	23.5%	6.7%	37.5%	31.6%	23.3%	4.3%	0.8%	-46.6M	9.6M	-23.9M	0.85	36.36	321,500	273,680	1,834,780	1,768,660
2019-05-24	$56.66	$57.50	21.2%	6.0%	37.3%	21.5%	21.1%	3.7%	0.3%	-70.2M	305.3M	-23.5M	0.99	38.52	225,700	224,380	1,938,560	1,835,100
2019-05-28	$56.77	$57.50	22.1%	6.3%	36.9%	25.2%	22.3%	3.8%	0.4%	-37.6M	-3.1M	-23.1M	0.83	37.78	176,420	146,080	1,698,240	1,708,600
2019-05-29	$55.85	$57.50	24.0%	6.7%	24.9%	33.7%	20.5%	3.5%	-0.4%	-98.0M	780.4M	-22.7M	1.19	38.90	274,840	327,380	1,754,680	1,742,720
2019-05-30	$55.94	$57.25	23.0%	6.4%	24.6%	29.4%	22.0%	3.5%	-0.0%	-80.7M	575.8M	-22.9M	0.90	41.63	177,580	160,020	1,849,000	1,766,220
2019-05-31	$55.25	$57.25	24.1%	6.8%	24.8%	33.9%	23.6%	3.9%	-0.1%	-167.9M	1.17B	-22.3M	1.01	38.35	203,620	206,680	1,891,520	1,788,020