GME Options History — December 2014

In December 2014, GME traded between $7.99 and $9.34. ATM implied volatility averaged 47.0%, placing in the 46.0% IV rank vs the trailing year. The 30-day expected move averaged 13.1%. IV traded below realized volatility by 12.4% (HV 20d: 59.4%). Max pain ranged from $8.75 to $10.00. Net GEX was positive for 0 of 22 trading days. Term structure was in contango for 11 of 22 days. Put/call ratio averaged 1.61.

Notable Days

2014-12-11: Highest Volume — 154,200 contracts
2014-12-08: Largest IV spike — 23.1% change
2014-12-16: Highest IV Rank — 60.6%
2014-12-31: Largest Expected Move — 14.0%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$8.58	$7.99	$9.34	$8.92	$8.45
Max Pain	$9.67	$8.75	$10.00	$10.00	$9.25
ATM IV	47.0%	33.8%	53.9%	37.8%	53.0%
Expected Move	13.1%	11.8%	14.0%	12.4%	14.0%
HV 20d	59.4%	48.3%	70.2%	59.4%	48.3%
HV 60d	45.4%	41.7%	47.8%	41.8%	47.5%
IV Rank	46.0%	17.9%	60.6%	26.5%	58.6%
IV Percentile	73.8%	12.3%	91.7%	47.6%	89.7%
Term Structure	1.6%	-2.2%	11.5%	5.9%	-1.5%
VWIV	45.3%	41.0%	48.4%	43.6%	48.4%
Skew 25d	4.2%	1.4%	7.1%	4.8%	3.7%
Skew 10d	7.5%	-1.0%	11.4%	7.0%	7.7%
Call IV 25d	45.6%	29.8%	53.8%	35.7%	51.6%
Put IV 25d	49.9%	34.7%	56.2%	40.5%	55.3%
Bid-Ask Spread %	19.05	12.89	26.83	19.34	14.89
Gamma HHI	0.14	0.12	0.18	0.14	0.15
Net GEX	-7.8M	-9.8M	-6.4M	-8.0M	-8.1M
Net DEX	239.2M	154.5M	325.2M	208.5M	224.3M
Net VEX	-720.9K	-830.1K	-626.2K	-830.1K	-638.3K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	1.61	0.59	4.17	1.21	0.59
Total Volume	58,377.818	14,788	154,200	54,624	15,896
Total OI	901,060.364	777,824	998,076	883,900	816,988

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 Wall	Put Wall	Call Vol	Put Vol	Call OI	Put OI
2014-12-01	$8.92	$10.00	37.8%	12.4%	59.4%	26.5%	43.6%	4.8%	5.9%	-8.0M	208.5M	-830.1K	1.21	19.34	N/A	N/A	24,700	29,924	303,468	580,432
2014-12-02	$8.88	$10.00	36.3%	12.3%	59.4%	23.3%	43.9%	4.9%	6.7%	-8.6M	222.4M	-825.7K	1.11	16.66	N/A	N/A	25,328	28,144	307,644	594,096
2014-12-03	$9.16	$10.00	33.8%	11.8%	61.1%	17.9%	41.0%	5.1%	11.5%	-9.1M	188.9M	-827.6K	4.17	23.63	N/A	N/A	21,968	91,708	317,220	601,280
2014-12-04	$9.27	$10.00	34.9%	12.0%	61.2%	20.3%	42.0%	4.2%	7.0%	-8.1M	165.3M	-826.6K	1.10	26.83	N/A	N/A	7,044	7,744	322,380	602,540
2014-12-05	$9.34	$10.00	35.6%	11.9%	59.1%	21.7%	41.8%	5.0%	9.3%	-7.8M	154.5M	-823.7K	1.08	17.07	N/A	N/A	30,248	32,572	324,420	606,952
2014-12-08	$8.79	$10.00	43.8%	12.5%	61.7%	39.1%	45.0%	1.5%	-0.5%	-8.6M	229.7M	-771.5K	1.57	17.72	N/A	N/A	21,236	33,268	314,476	593,384
2014-12-09	$8.88	$10.00	44.0%	12.4%	62.0%	39.6%	43.7%	4.0%	2.2%	-9.1M	224.7M	-787.1K	1.12	20.66	N/A	N/A	30,076	33,580	322,836	607,240
2014-12-10	$8.35	$10.00	50.8%	13.5%	64.8%	54.0%	45.6%	1.4%	3.1%	-7.4M	276.8M	-747.9K	0.98	19.14	N/A	N/A	52,404	51,340	322,744	610,828
2014-12-11	$8.48	$10.00	50.4%	13.4%	64.3%	53.2%	46.0%	6.6%	3.8%	-7.1M	261.9M	-775.1K	3.05	18.25	N/A	N/A	38,116	116,084	351,120	619,000
2014-12-12	$8.07	$10.00	53.3%	13.9%	64.2%	59.2%	47.7%	2.3%	0.7%	-6.5M	318.5M	-685.6K	0.96	18.94	N/A	N/A	34,168	32,804	356,320	641,756
2014-12-15	$8.26	$10.00	53.6%	13.8%	65.5%	59.8%	48.3%	4.5%	-1.5%	-7.2M	297.5M	-701.7K	1.28	20.51	N/A	N/A	22,752	29,044	339,368	632,724
2014-12-16	$7.99	$10.00	53.9%	13.8%	65.7%	60.6%	47.0%	2.9%	-1.2%	-6.4M	325.2M	-642.1K	1.34	20.03	N/A	N/A	24,760	33,212	345,756	639,544
2014-12-17	$8.16	$10.00	52.0%	13.6%	66.8%	56.5%	46.3%	4.2%	0.0%	-6.9M	316.2M	-667.1K	1.13	22.69	N/A	N/A	18,116	20,488	350,824	642,340
2014-12-18	$8.26	$10.00	50.7%	13.2%	67.4%	53.7%	47.4%	4.3%	-1.4%	-7.2M	307.3M	-665.2K	1.40	20.02	N/A	N/A	25,932	36,240	343,820	638,960
2014-12-19	$8.63	$10.00	48.9%	13.1%	70.2%	49.9%	43.6%	5.5%	-2.2%	-9.8M	261.2M	-703.5K	0.74	21.70	N/A	N/A	12,936	9,552	342,960	642,928
2014-12-22	$8.52	$0.00	48.4%	12.7%	50.2%	48.8%	43.6%	4.2%	-1.5%	-7.3M	204.5M	-668.4K	0.84	16.64	N/A	N/A	28,084	23,644	238,680	539,144
2014-12-23	$8.68	$8.75	47.8%	12.5%	50.8%	47.7%	43.8%	4.6%	-1.3%	-7.0M	181.7M	-695.1K	1.25	18.41	N/A	N/A	18,452	23,048	249,480	544,120
2014-12-24	$8.35	$8.75	51.0%	13.6%	52.3%	54.4%	46.8%	1.9%	-2.0%	-7.2M	222.5M	-647.9K	2.39	20.91	N/A	N/A	16,768	40,020	245,492	547,500
2014-12-26	$8.42	$8.75	51.4%	13.3%	52.5%	55.3%	46.7%	7.1%	-1.8%	-7.7M	224.2M	-653.6K	1.57	16.40	N/A	N/A	14,064	22,084	246,568	567,364
2014-12-29	$8.41	$8.75	51.1%	13.5%	51.9%	54.7%	47.1%	5.9%	0.2%	-7.8M	227.3M	-626.2K	2.58	15.69	N/A	N/A	17,324	44,656	229,504	561,804
2014-12-30	$8.46	$8.75	52.5%	13.9%	48.3%	57.7%	47.7%	4.9%	-0.8%	-8.1M	220.0M	-649.4K	4.03	12.89	N/A	N/A	8,900	35,884	232,920	584,404
2014-12-31	$8.45	$9.25	53.0%	14.0%	48.3%	58.6%	48.4%	3.7%	-1.5%	-8.1M	224.3M	-638.3K	0.59	14.89	N/A	N/A	10,004	5,892	235,432	581,556