GOOG Options History — May 2018

In May 2018, GOOG traded between $51.16 and $55.09. ATM implied volatility averaged 18.6%, placing in the 22.0% IV rank vs the trailing year. The 30-day expected move averaged 5.4%. IV traded below realized volatility by 7.3% (HV 20d: 25.9%). Max pain ranged from $52.00 to $53.25. Net GEX was positive for 16 of 22 trading days. Term structure was in contango for 16 of 22 days. Put/call ratio averaged 0.90.

Notable Days

2018-05-04: Highest Volume — 1,129,040 contracts
2018-05-29: Largest IV spike — 15.3% change
2018-05-03: Highest IV Rank — 29.8%
2018-05-01: Largest Expected Move — 5.9%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$53.45	$51.16	$55.09	$51.63	$54.60
Max Pain	$52.47	$52.00	$53.25	$53.25	$52.50
ATM IV	18.6%	17.1%	20.4%	20.1%	18.7%
Expected Move	5.4%	4.8%	5.9%	5.9%	5.5%
HV 20d	25.9%	17.9%	30.1%	29.7%	19.7%
HV 60d	30.1%	28.6%	32.8%	32.8%	29.0%
IV Rank	22.0%	15.4%	29.8%	28.7%	21.9%
IV Percentile	43.8%	29.4%	50.8%	50.8%	45.2%
Term Structure	0.0%	-0.7%	0.5%	-0.0%	-0.7%
VWIV	19.2%	17.1%	21.2%	21.0%	19.4%
Skew 25d	1.6%	0.6%	2.4%	1.8%	1.9%
Skew 10d	3.1%	0.9%	4.8%	3.6%	3.7%
Call IV 25d	18.0%	16.6%	19.5%	19.5%	18.0%
Put IV 25d	19.6%	18.1%	21.9%	21.3%	19.9%
Bid-Ask Spread %	38.75	31.04	47.03	42.23	41.63
Gamma HHI	0.05	0.03	0.17	0.04	0.06
Net GEX	74.6M	-215.8M	233.5M	-9.5M	233.5M
Net DEX	-2.80B	-5.22B	27.5M	-616.2M	-4.53B
Net VEX	-29.4M	-31.5M	-27.5M	-31.5M	-27.5M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.90	0.71	1.14	0.95	0.71
Total Volume	689,000.909	463,800	1,129,040	571,040	952,180
Total OI	4,949,688.182	4,291,060	5,491,620	4,847,580	4,732,340

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
2018-05-01	$51.63	$53.25	20.1%	5.9%	29.7%	28.7%	21.0%	1.8%	-0.0%	-9.5M	-616.2M	-31.5M	0.95	42.23	293,260	277,780	2,497,600	2,349,980
2018-05-02	$51.36	$53.25	19.0%	5.8%	29.3%	24.5%	20.1%	1.9%	0.2%	-25.4M	-345.1M	-31.1M	1.01	44.17	347,580	350,500	2,552,920	2,408,420
2018-05-03	$51.16	$52.50	20.4%	5.9%	29.4%	29.8%	21.0%	2.4%	0.0%	-63.1M	27.5M	-31.5M	0.86	39.53	446,960	385,720	2,669,740	2,475,580
2018-05-04	$52.38	$52.00	18.6%	5.4%	29.5%	22.9%	20.1%	2.3%	0.3%	204.9M	-2.17B	-31.2M	0.71	38.73	661,520	467,520	2,718,080	2,499,160
2018-05-07	$52.75	$52.00	19.1%	5.6%	29.2%	24.6%	20.1%	1.8%	0.2%	86.9M	-2.20B	-30.9M	0.94	43.89	336,300	315,900	2,557,660	2,359,840
2018-05-08	$52.71	$52.00	18.8%	5.5%	29.0%	23.5%	19.7%	1.8%	0.2%	84.2M	-2.11B	-31.2M	1.08	47.03	259,660	281,580	2,622,960	2,420,820
2018-05-09	$54.13	$52.00	19.2%	5.5%	30.1%	24.9%	19.6%	1.2%	0.0%	209.6M	-4.27B	-30.6M	0.82	41.49	527,920	432,380	2,692,840	2,464,760
2018-05-10	$54.75	$52.25	18.9%	5.4%	30.1%	23.8%	19.5%	1.2%	-0.1%	214.7M	-5.22B	-29.9M	0.77	37.60	477,400	366,640	2,736,640	2,560,140
2018-05-11	$54.77	$52.50	18.1%	5.3%	29.9%	20.8%	18.8%	1.4%	0.5%	164.7M	-5.20B	-29.3M	0.84	42.40	454,400	383,820	2,812,740	2,636,300
2018-05-14	$55.09	$52.50	18.0%	5.2%	29.8%	20.3%	18.3%	1.2%	0.3%	223.8M	-5.01B	-28.0M	0.94	36.59	364,120	342,700	2,670,280	2,366,940
2018-05-15	$53.84	$52.50	19.4%	5.6%	28.6%	25.7%	19.5%	1.6%	-0.0%	54.9M	-2.78B	-29.7M	0.87	40.95	373,220	325,940	2,729,100	2,486,680
2018-05-16	$54.20	$52.50	18.5%	5.3%	28.7%	22.4%	18.8%	1.4%	0.1%	96.5M	-3.39B	-29.1M	1.04	35.96	262,020	272,300	2,810,480	2,539,020
2018-05-17	$53.97	$52.50	18.2%	5.2%	28.1%	19.7%	18.8%	1.3%	0.1%	61.2M	-2.94B	-28.5M	0.73	38.54	387,480	281,360	2,844,900	2,561,820
2018-05-18	$53.37	$52.50	18.2%	5.2%	27.7%	19.9%	19.0%	1.5%	0.0%	-26.6M	-1.91B	-29.0M	0.84	34.84	480,060	402,480	2,895,740	2,595,880
2018-05-21	$53.85	$52.50	18.0%	5.2%	27.9%	19.2%	18.8%	0.6%	0.1%	66.8M	-3.04B	-28.9M	0.95	34.17	269,240	254,740	2,194,420	2,096,640
2018-05-22	$53.56	$52.50	17.8%	5.0%	19.5%	18.2%	17.5%	1.3%	0.2%	32.4M	-2.56B	-28.8M	0.92	33.27	251,300	231,240	2,243,700	2,144,240
2018-05-23	$53.88	$52.50	17.5%	5.0%	19.4%	17.1%	17.5%	1.4%	0.1%	99.3M	-3.12B	-27.9M	0.88	40.23	247,480	218,440	2,322,540	2,190,900
2018-05-24	$53.92	$52.50	17.5%	5.0%	18.4%	17.2%	18.7%	1.5%	0.1%	144.8M	-3.16B	-28.5M	1.14	36.19	216,360	247,440	2,400,380	2,244,620
2018-05-25	$53.70	$52.50	17.3%	4.8%	17.9%	16.3%	17.1%	1.7%	0.1%	-215.8M	-2.74B	-28.3M	0.87	36.42	267,120	232,080	2,422,400	2,302,600
2018-05-29	$52.98	$52.50	20.0%	5.8%	18.6%	26.7%	21.2%	2.2%	-0.5%	-17.8M	-1.81B	-28.2M	1.00	31.04	358,680	358,300	2,238,440	2,157,040
2018-05-30	$53.37	$52.50	17.1%	5.1%	18.5%	15.4%	18.0%	1.9%	-0.5%	21.9M	-2.49B	-28.1M	0.86	35.52	266,360	228,540	2,358,180	2,307,680
2018-05-31	$54.60	$52.50	18.7%	5.5%	19.7%	21.9%	19.4%	1.9%	-0.7%	233.5M	-4.53B	-27.5M	0.71	41.63	555,300	396,880	2,405,180	2,327,160