GLD Options History — August 2021

In August 2021, GLD traded between $161.72 and $170.08. ATM implied volatility averaged 13.9%, placing in the 16.8% IV rank vs the trailing year. The 30-day expected move averaged 3.9%. IV traded above realized volatility by 0.6% (HV 20d: 13.3%). Max pain ranged from $168.00 to $170.00. Net GEX was positive for 20 of 22 trading days. Term structure was in contango for 13 of 22 days. Put/call ratio averaged 0.67.

Notable Days

2021-08-09: Highest Volume — 250,125 contracts
2021-08-09: Largest IV spike — 9.9% change
2021-08-26: Highest IV Rank — 27.3%
2021-08-09: Largest Expected Move — 4.3%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$167.10	$161.72	$170.08	$169.64	$169.74
Max Pain	$168.64	$168.00	$170.00	$168.00	$169.00
ATM IV	13.9%	13.4%	15.4%	13.6%	13.4%
Expected Move	3.9%	3.6%	4.3%	3.7%	3.8%
HV 20d	13.3%	8.1%	15.5%	8.3%	15.5%
HV 60d	12.9%	11.6%	13.5%	11.8%	13.0%
IV Rank	16.8%	11.5%	27.3%	13.1%	15.0%
IV Percentile	25.1%	13.1%	41.3%	20.6%	13.1%
Term Structure	0.0%	-0.3%	0.3%	-0.2%	0.1%
VWIV	14.3%	13.1%	15.6%	13.5%	14.4%
Skew 25d	0.4%	-0.5%	1.0%	-0.5%	0.3%
Skew 10d	1.0%	-0.4%	2.0%	-0.4%	0.6%
Call IV 25d	14.2%	13.5%	15.3%	14.5%	13.8%
Put IV 25d	14.6%	13.9%	16.2%	14.0%	14.1%
Bid-Ask Spread %	1.32	0.95	2.43	2.43	1.43
Gamma HHI	0.06	0.05	0.10	0.05	0.07
Net GEX	245.7M	-74.7M	502.4M	302.3M	411.6M
Net DEX	-1.15B	-3.66B	3.03B	-2.47B	-3.10B
Net VEX	-59.2M	-63.3M	-55.2M	-62.1M	-57.4M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.67	0.16	1.46	0.19	0.69
Total Volume	103,660.864	33,325	250,125	131,426	55,487
Total OI	2,964,051.591	2,774,923	3,157,316	2,805,176	2,865,891

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
2021-08-02	$169.64	$168.00	13.6%	3.7%	8.3%	13.1%	13.5%	-0.5%	-0.2%	302.3M	-2.47B	-62.1M	0.19	2.43	110,145	21,281	1,680,897	1,124,279
2021-08-03	$169.43	$168.00	13.6%	3.7%	8.2%	12.8%	13.5%	-0.3%	-0.1%	300.7M	-2.30B	-61.8M	0.24	1.93	50,572	12,311	1,696,662	1,135,847
2021-08-04	$169.57	$168.00	13.6%	3.6%	8.1%	12.8%	13.1%	-0.1%	-0.1%	377.7M	-2.72B	-63.3M	0.52	1.79	74,063	38,770	1,792,901	1,148,333
2021-08-05	$168.93	$170.00	13.4%	3.8%	8.2%	11.7%	13.6%	0.1%	-0.2%	328.7M	-2.26B	-62.9M	1.05	1.24	54,719	57,371	1,819,062	1,152,772
2021-08-06	$164.74	$170.00	14.0%	4.0%	11.9%	16.1%	14.5%	0.6%	-0.3%	18.4M	1.30B	-58.8M	0.53	1.22	149,547	79,176	1,837,320	1,158,673
2021-08-09	$161.83	$170.00	15.4%	4.3%	13.3%	26.7%	15.6%	0.9%	-0.2%	-69.9M	3.01B	-55.2M	0.61	1.35	155,052	95,073	1,800,663	1,146,460
2021-08-10	$161.72	$169.00	15.0%	4.3%	13.2%	23.9%	15.4%	0.7%	-0.1%	-74.7M	3.03B	-55.9M	0.55	1.12	63,744	35,170	1,848,225	1,169,384
2021-08-11	$163.89	$168.00	13.9%	4.0%	13.6%	15.7%	14.4%	0.6%	0.0%	44.1M	1.40B	-58.5M	0.49	1.03	65,497	32,336	1,890,926	1,204,540
2021-08-12	$164.00	$168.00	13.8%	4.0%	13.6%	14.8%	14.4%	0.5%	0.1%	83.6M	1.20B	-58.6M	0.16	0.95	92,191	14,949	1,913,203	1,220,513
2021-08-13	$166.32	$168.00	13.4%	3.9%	14.4%	11.5%	13.9%	0.2%	0.1%	189.0M	-963.3M	-60.1M	0.57	1.02	79,483	44,942	1,923,851	1,233,465
2021-08-16	$167.26	$168.00	13.9%	4.0%	14.6%	15.7%	14.9%	0.3%	0.1%	234.1M	-1.71B	-60.4M	0.58	1.01	71,613	41,340	1,860,436	1,204,826
2021-08-17	$166.85	$168.00	14.2%	4.1%	14.6%	18.4%	14.7%	0.5%	0.2%	204.5M	-1.19B	-59.5M	0.78	1.03	33,483	26,079	1,866,164	1,218,428
2021-08-18	$167.01	$168.00	13.9%	4.0%	14.6%	15.7%	14.5%	0.3%	0.2%	229.6M	-1.43B	-59.4M	0.75	1.26	36,663	27,587	1,863,863	1,224,685
2021-08-19	$166.57	$168.00	13.8%	3.9%	14.6%	15.0%	14.5%	0.9%	0.3%	213.1M	-843.9M	-58.2M	1.46	1.08	46,673	68,236	1,869,406	1,233,121
2021-08-20	$166.75	$168.00	13.4%	3.8%	14.6%	13.5%	14.1%	1.0%	0.3%	366.9M	-1.19B	-57.8M	1.16	1.06	49,619	57,666	1,878,751	1,238,272
2021-08-23	$168.72	$169.00	13.9%	3.9%	15.2%	18.0%	14.5%	0.2%	-0.0%	360.8M	-2.60B	-59.2M	0.45	1.30	66,952	30,267	1,676,465	1,098,458
2021-08-24	$168.76	$169.00	13.6%	3.8%	15.2%	17.2%	14.2%	0.4%	0.0%	366.4M	-2.56B	-59.1M	0.78	1.31	18,713	14,612	1,688,646	1,123,403
2021-08-25	$167.51	$169.00	14.0%	3.9%	15.4%	21.6%	14.1%	0.4%	0.0%	300.1M	-1.66B	-58.4M	0.95	1.35	34,484	32,828	1,707,519	1,134,580
2021-08-26	$167.61	$169.00	14.6%	4.1%	14.7%	27.3%	15.2%	0.7%	-0.0%	310.0M	-1.69B	-58.4M	0.74	1.32	31,626	23,359	1,712,046	1,138,021
2021-08-27	$170.08	$169.00	13.4%	3.7%	15.4%	15.3%	13.6%	0.2%	0.1%	502.4M	-3.66B	-59.3M	0.90	1.37	74,852	67,145	1,724,646	1,158,573
2021-08-30	$169.32	$169.00	13.6%	3.8%	15.5%	17.2%	13.9%	0.3%	0.1%	405.6M	-2.87B	-57.7M	0.51	1.34	29,617	15,246	1,706,741	1,118,218
2021-08-31	$169.74	$169.00	13.4%	3.8%	15.5%	15.0%	14.4%	0.3%	0.1%	411.6M	-3.10B	-57.4M	0.69	1.43	32,855	22,632	1,717,988	1,147,903