GME Options History — December 2017

In December 2017, GME traded between $4.49 and $4.85. ATM implied volatility averaged 42.6%, placing in the 17.4% IV rank vs the trailing year. The 30-day expected move averaged 12.9%. IV traded above realized volatility by 4.9% (HV 20d: 37.7%). Max pain ranged from $4.75 to $5.25. Net GEX was positive for 0 of 20 trading days. Term structure was in contango for 8 of 20 days. Put/call ratio averaged 2.00.

Notable Days

2017-12-11: Highest Volume — 159,072 contracts
2017-12-11: Largest IV spike — 18.8% change
2017-12-11: Highest IV Rank — 25.5%
2017-12-11: Largest Expected Move — 14.7%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$4.66	$4.49	$4.85	$4.69	$4.49
Max Pain	$5.22	$4.75	$5.25	$4.75	$5.25
ATM IV	42.6%	34.6%	49.4%	35.4%	41.6%
Expected Move	12.9%	10.8%	14.7%	10.8%	12.9%
HV 20d	37.7%	24.9%	46.0%	45.4%	24.9%
HV 60d	32.1%	31.1%	32.6%	31.1%	32.5%
IV Rank	17.4%	8.0%	25.5%	9.0%	16.3%
IV Percentile	65.8%	46.0%	86.1%	49.2%	59.9%
Term Structure	0.8%	-3.2%	10.7%	-3.2%	-1.7%
VWIV	44.4%	33.2%	49.8%	38.2%	45.5%
Skew 25d	4.1%	0.8%	9.1%	2.9%	4.4%
Skew 10d	9.3%	0.4%	24.8%	7.9%	8.4%
Call IV 25d	42.0%	34.9%	52.2%	36.3%	40.9%
Put IV 25d	46.1%	38.5%	59.0%	39.1%	45.3%
Bid-Ask Spread %	11.98	6.98	25.92	11.78	9.67
Gamma HHI	0.18	0.14	0.20	0.17	0.20
Net GEX	-2.6M	-3.4M	-634.9K	-1.8M	-3.3M
Net DEX	84.1M	40.4M	114.5M	59.2M	114.5M
Net VEX	-364.0K	-421.7K	-307.1K	-376.3K	-307.1K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	2.00	0.49	6.19	0.93	1.88
Total Volume	55,629.2	32,248	159,072	53,500	47,368
Total OI	738,633.6	674,104	823,212	714,000	725,640

Daily Data (20 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 Wall	Put Wall	Call Vol	Put Vol	Call OI	Put OI
2017-12-01	$4.69	$4.75	35.4%	10.8%	45.4%	9.0%	38.2%	2.9%	-3.2%	-1.8M	59.2M	-376.3K	0.93	11.78	N/A	N/A	27,668	25,832	240,596	473,404
2017-12-04	$4.85	$5.25	37.4%	13.6%	46.0%	11.3%	47.6%	6.1%	10.7%	-1.5M	40.7M	-387.0K	0.49	11.39	N/A	N/A	55,128	26,932	229,124	466,376
2017-12-05	$4.82	$5.25	34.6%	13.0%	45.6%	8.0%	43.6%	5.8%	8.4%	-719.7K	40.4M	-387.3K	1.60	10.61	N/A	N/A	13,080	20,880	257,980	476,644
2017-12-06	$4.75	$5.25	35.2%	12.6%	43.0%	8.7%	43.9%	2.9%	7.8%	-634.9K	52.1M	-378.5K	1.15	9.42	N/A	N/A	15,000	17,248	258,176	485,268
2017-12-07	$4.66	$5.25	39.2%	12.6%	43.9%	13.5%	44.6%	2.2%	2.1%	-1.1M	67.4M	-358.3K	1.08	15.74	N/A	N/A	22,316	24,056	258,900	489,380
2017-12-08	$4.80	$5.25	41.6%	12.7%	44.5%	16.3%	44.9%	5.4%	-1.0%	-2.7M	52.6M	-368.6K	0.85	12.24	N/A	N/A	37,496	31,848	257,032	500,940
2017-12-11	$4.77	$5.25	49.4%	14.7%	35.9%	25.5%	49.8%	9.1%	0.8%	-2.6M	65.4M	-372.9K	6.19	25.92	N/A	N/A	22,128	136,944	228,192	505,140
2017-12-12	$4.78	$5.25	47.8%	13.8%	35.1%	23.6%	48.4%	5.3%	0.5%	-3.3M	77.0M	-405.8K	2.70	13.13	N/A	N/A	17,120	46,272	234,804	564,988
2017-12-13	$4.67	$5.25	48.3%	13.6%	36.7%	24.2%	44.3%	5.2%	2.5%	-3.3M	98.2M	-421.7K	2.36	19.71	N/A	N/A	15,832	37,300	237,768	576,096
2017-12-14	$4.60	$5.25	47.7%	13.9%	37.2%	23.5%	47.9%	0.8%	0.4%	-3.2M	106.0M	-377.5K	0.89	11.91	N/A	N/A	19,980	17,684	239,256	577,368
2017-12-15	$4.58	$5.25	48.2%	13.4%	37.3%	24.0%	46.1%	2.8%	-0.6%	-2.6M	108.6M	-369.9K	1.11	12.25	N/A	N/A	16,952	18,800	241,636	581,576
2017-12-18	$4.67	$5.25	46.4%	13.3%	37.6%	21.9%	46.2%	5.1%	-1.8%	-2.7M	86.5M	-363.0K	1.03	7.62	N/A	N/A	28,160	28,868	204,856	469,248
2017-12-19	$4.59	$5.25	44.3%	12.7%	38.4%	19.4%	43.9%	4.1%	-1.6%	-2.6M	95.1M	-361.7K	2.96	7.53	N/A	N/A	11,896	35,228	216,492	477,972
2017-12-20	$4.56	$5.25	42.8%	12.3%	38.3%	17.7%	43.0%	3.5%	-1.2%	-2.9M	103.3M	-348.2K	4.51	9.52	N/A	N/A	11,776	53,120	217,084	489,760
2017-12-21	$4.61	$5.25	41.4%	11.9%	36.5%	16.1%	41.8%	3.6%	-0.0%	-3.0M	98.6M	-352.0K	3.25	7.77	N/A	N/A	15,276	49,624	218,008	498,764
2017-12-22	$4.57	$5.25	40.7%	11.8%	36.8%	15.2%	33.2%	2.7%	-1.0%	-3.4M	106.1M	-346.8K	1.94	9.50	N/A	N/A	15,392	29,800	218,888	507,508
2017-12-26	$4.62	$5.25	44.6%	12.9%	33.9%	19.8%	44.9%	2.6%	-0.7%	-3.4M	96.0M	-349.2K	1.41	12.84	N/A	N/A	17,552	24,820	210,928	499,284
2017-12-27	$4.55	$5.25	43.1%	12.9%	29.5%	18.1%	45.0%	3.4%	-1.5%	-3.3M	104.0M	-330.6K	2.00	14.04	N/A	N/A	12,052	24,084	216,480	500,164
2017-12-28	$4.54	$5.25	42.2%	12.9%	27.7%	17.0%	45.1%	3.2%	-2.3%	-3.4M	109.9M	-316.7K	1.78	6.98	N/A	N/A	14,764	26,308	218,028	502,924
2017-12-29	$4.49	$5.25	41.6%	12.9%	24.9%	16.3%	45.5%	4.4%	-1.7%	-3.3M	114.5M	-307.1K	1.88	9.67	N/A	N/A	16,448	30,920	221,328	504,312