GDX Options History — October 2021

In October 2021, GDX traded between $29.34 and $33.45. ATM implied volatility averaged 28.8%, placing in the 14.6% IV rank vs the trailing year. The 30-day expected move averaged 8.3%. IV traded above realized volatility by 6.8% (HV 20d: 22.0%). Max pain ranged from $30.00 to $31.00. Net GEX was positive for 18 of 21 trading days. Term structure was in contango for 13 of 21 days. Put/call ratio averaged 0.65.

Notable Days

2021-10-13: Highest Volume — 194,726 contracts
2021-10-05: Largest IV drop — 5.8% change
2021-10-04: Highest IV Rank — 34.8%
2021-10-04: Largest Expected Move — 9.2%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$31.75	$29.34	$33.45	$29.34	$31.80
Max Pain	$30.67	$30.00	$31.00	$31.00	$31.00
ATM IV	28.8%	26.7%	32.8%	31.7%	27.0%
Expected Move	8.3%	7.8%	9.2%	9.2%	7.8%
HV 20d	22.0%	18.0%	26.5%	26.2%	21.3%
HV 60d	26.6%	25.8%	27.2%	27.2%	26.8%
IV Rank	14.6%	4.2%	34.8%	29.1%	5.9%
IV Percentile	22.0%	2.4%	52.4%	46.8%	4.0%
Term Structure	0.1%	-1.1%	0.9%	0.4%	0.7%
VWIV	29.3%	27.5%	32.2%	32.2%	27.6%
Skew 25d	1.4%	0.5%	2.5%	1.9%	1.3%
Skew 10d	2.9%	0.7%	5.4%	3.4%	2.1%
Call IV 25d	28.6%	26.6%	32.2%	31.3%	26.6%
Put IV 25d	30.0%	27.9%	34.7%	33.2%	27.9%
Bid-Ask Spread %	9.10	1.88	32.09	2.40	6.15
Gamma HHI	0.07	0.06	0.09	0.08	0.06
Net GEX	12.3M	-15.8M	35.9M	-15.8M	2.0M
Net DEX	260.9M	-368.5M	1.14B	1.14B	400.5M
Net VEX	-12.1M	-13.1M	-10.4M	-10.4M	-11.8M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.65	0.21	1.75	0.36	0.94
Total Volume	108,190.714	59,852	194,726	64,510	114,910
Total OI	2,723,598.095	2,582,917	2,877,375	2,631,014	2,761,368

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
2021-10-01	$29.34	$31.00	31.7%	9.2%	26.2%	29.1%	32.2%	1.9%	0.4%	-15.8M	1.14B	-10.4M	0.36	2.40	47,456	17,054	1,548,515	1,082,499
2021-10-04	$29.65	$31.00	32.8%	9.2%	24.3%	34.8%	32.1%	2.5%	-0.2%	-9.1M	1.03B	-10.7M	0.48	1.93	67,730	32,397	1,534,814	1,075,824
2021-10-05	$29.80	$31.00	30.9%	8.9%	22.7%	25.3%	31.1%	2.0%	-0.1%	-6.5M	999.6M	-10.7M	0.21	1.88	51,636	10,590	1,563,525	1,081,487
2021-10-06	$30.22	$30.00	31.1%	8.8%	23.6%	26.0%	30.8%	2.2%	0.1%	406.0K	845.7M	-11.1M	1.13	10.17	39,695	44,718	1,593,929	1,096,891
2021-10-07	$30.38	$30.00	29.5%	8.5%	23.8%	18.3%	29.9%	1.7%	0.1%	5.4M	725.3M	-11.3M	0.21	17.82	99,040	21,144	1,608,186	1,093,976
2021-10-08	$30.69	$30.00	29.5%	8.4%	23.8%	18.4%	29.8%	1.8%	0.0%	7.8M	601.7M	-11.7M	0.31	1.90	90,029	27,905	1,619,971	1,107,421
2021-10-11	$30.62	$30.00	29.3%	8.3%	22.9%	17.2%	29.5%	2.1%	-0.3%	7.2M	644.3M	-11.5M	0.34	10.09	47,100	16,038	1,644,387	1,088,118
2021-10-12	$31.10	$30.00	29.1%	8.4%	23.6%	16.5%	29.3%	1.9%	0.0%	13.7M	455.3M	-11.9M	0.53	2.23	46,458	24,444	1,675,297	1,100,714
2021-10-13	$32.11	$30.00	29.1%	8.5%	26.5%	16.3%	29.7%	1.4%	0.3%	26.2M	26.3M	-12.5M	0.64	21.28	118,496	76,230	1,691,450	1,105,382
2021-10-14	$32.82	$30.00	28.0%	8.2%	21.4%	10.9%	28.9%	1.3%	0.8%	35.9M	-302.9M	-12.8M	0.53	14.05	105,972	55,683	1,711,741	1,113,292
2021-10-15	$32.44	$31.00	27.8%	8.1%	21.6%	9.8%	29.4%	1.6%	0.9%	24.1M	-96.4M	-12.5M	0.96	6.85	89,237	85,488	1,724,162	1,153,213
2021-10-18	$32.25	$31.00	28.5%	8.2%	21.4%	13.1%	28.7%	1.0%	-1.1%	5.1M	160.8M	-12.4M	0.72	2.56	68,705	49,689	1,508,462	1,074,455
2021-10-19	$32.42	$31.00	27.7%	8.0%	21.3%	9.4%	28.1%	0.9%	-0.6%	6.1M	100.9M	-12.4M	0.50	14.50	47,876	24,174	1,536,453	1,114,731
2021-10-20	$32.85	$31.00	27.8%	8.0%	21.5%	9.8%	27.9%	0.8%	-0.7%	21.1M	-145.3M	-12.8M	0.52	8.43	80,741	41,596	1,590,363	1,107,519
2021-10-21	$32.70	$31.00	27.5%	7.9%	20.1%	8.3%	27.9%	1.3%	-0.7%	19.8M	-90.6M	-12.9M	1.75	32.09	36,587	63,890	1,620,543	1,117,756
2021-10-22	$33.10	$31.00	27.1%	7.8%	19.8%	6.4%	27.6%	1.3%	-0.5%	25.8M	-260.2M	-13.0M	0.36	2.57	132,395	47,039	1,619,615	1,135,964
2021-10-25	$33.45	$31.00	28.2%	8.2%	19.6%	11.6%	29.4%	0.5%	0.3%	27.5M	-368.5M	-13.1M	0.66	5.42	60,601	39,827	1,607,929	1,118,715
2021-10-26	$33.30	$31.00	27.3%	8.1%	19.3%	7.4%	29.0%	0.8%	0.6%	25.9M	-271.8M	-12.9M	0.79	5.29	33,479	26,373	1,624,344	1,127,601
2021-10-27	$33.13	$31.00	26.7%	7.8%	18.0%	4.2%	27.5%	1.2%	0.8%	24.1M	-210.1M	-12.8M	0.71	5.68	64,175	45,506	1,627,918	1,130,221
2021-10-28	$32.52	$31.00	27.4%	8.0%	19.3%	7.6%	28.3%	0.5%	0.8%	10.8M	88.3M	-12.3M	1.05	17.71	39,069	40,833	1,619,803	1,137,006
2021-10-29	$31.80	$31.00	27.0%	7.8%	21.3%	5.9%	27.6%	1.3%	0.7%	2.0M	400.5M	-11.8M	0.94	6.15	59,123	55,787	1,630,315	1,131,053