GPK Options History — August 2025

In August 2025, GPK traded between $21.52 and $23.13. ATM implied volatility averaged 28.5%, placing in the 16.1% IV rank vs the trailing year. The 30-day expected move averaged 8.1%. IV traded below realized volatility by 2.5% (HV 20d: 31.0%). Max pain ranged from $22.50 to $22.50. Net GEX was positive for 20 of 21 trading days. Term structure was in contango for 15 of 21 days. Put/call ratio averaged 1.29.

Notable Days

2025-08-15: Highest Volume — 621 contracts
2025-08-06: Largest IV spike — 35.0% change
2025-08-06: Highest IV Rank — 19.4%
2025-08-01: Largest Expected Move — 8.9%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$22.48	$21.52	$23.13	$21.52	$22.22
Max Pain	$22.50	$22.50	$22.50	$22.50	$22.50
ATM IV	28.5%	23.1%	31.1%	31.0%	26.8%
Expected Move	8.1%	6.6%	8.9%	8.9%	7.7%
HV 20d	31.0%	27.4%	33.4%	27.5%	27.4%
HV 60d	25.5%	24.5%	26.1%	24.5%	25.7%
IV Rank	16.1%	8.4%	19.4%	19.3%	12.7%
IV Percentile	52.8%	13.5%	69.8%	68.3%	36.1%
Term Structure	1.5%	-3.2%	12.8%	-3.2%	1.4%
VWIV	28.2%	15.7%	33.1%	32.4%	27.9%
Skew 25d	4.2%	-0.8%	13.1%	2.8%	-0.8%
Skew 10d	2.1%	-9.1%	14.7%	4.3%	-3.5%
Call IV 25d	26.8%	17.8%	32.7%	31.4%	32.7%
Put IV 25d	31.0%	25.8%	34.2%	34.2%	31.9%
Bid-Ask Spread %	67.22	42.53	96.79	91.85	75.29
Gamma HHI	0.40	0.35	0.47	0.44	0.38
Net GEX	91.7K	-46.2K	185.0K	-46.2K	61.1K
Net DEX	-1.1M	-2.3M	355.8K	355.8K	-762.5K
Net VEX	-18.1K	-22.3K	-14.2K	-22.3K	-14.2K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	1.29	0.00	8.00	0.50	0.13
Total Volume	67.429	0	621	21	9
Total OI	7,735.905	7,253	8,147	8,056	7,511

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
2025-08-01	$21.52	$22.50	31.0%	8.9%	27.5%	19.3%	32.4%	2.8%	-3.2%	-46.2K	355.8K	-22.3K	0.50	91.85	14	7	4,188	3,868
2025-08-04	$21.93	$22.50	30.0%	8.2%	28.1%	18.1%	0.0%	2.1%	1.5%	5.9K	35.9K	-20.2K	8.00	52.29	1	8	4,191	3,872
2025-08-05	$22.26	$22.50	23.1%	8.1%	28.1%	9.9%	31.2%	1.4%	2.2%	57.3K	-754.1K	-20.4K	2.50	42.53	4	10	4,192	3,871
2025-08-06	$21.87	$22.50	31.1%	8.4%	28.3%	19.4%	28.8%	2.2%	2.2%	4.6K	75.8K	-19.4K	0.06	50.21	16	1	4,191	3,871
2025-08-07	$22.80	$22.50	30.4%	8.1%	31.7%	18.5%	27.4%	4.2%	3.0%	113.8K	-1.6M	-20.3K	0.07	62.07	72	5	4,201	3,870
2025-08-08	$22.77	$22.50	29.0%	7.9%	31.4%	16.9%	0.0%	3.3%	2.1%	127.6K	-1.9M	-20.5K	0.00	52.19	0	0	4,253	3,871
2025-08-11	$22.28	$22.50	30.7%	8.1%	32.3%	18.9%	28.2%	3.5%	1.6%	98.3K	-629.9K	-18.7K	1.14	65.38	7	8	4,253	3,871
2025-08-12	$22.71	$22.50	31.1%	8.0%	32.8%	19.3%	0.0%	4.3%	1.3%	147.2K	-1.5M	-18.9K	0.00	78.60	11	0	4,254	3,875
2025-08-13	$23.13	$22.50	28.0%	8.0%	33.4%	15.7%	27.5%	3.5%	1.4%	161.2K	-2.3M	-19.1K	0.00	61.93	27	0	4,250	3,875
2025-08-14	$22.70	$22.50	29.0%	8.3%	33.2%	16.9%	15.7%	13.1%	-0.1%	185.0K	-1.6M	-18.8K	0.17	66.59	78	13	4,242	3,875
2025-08-15	$22.59	$22.50	27.0%	7.7%	33.1%	14.5%	26.9%	3.8%	0.5%	149.7K	-1.3M	-17.7K	0.00	68.15	619	2	4,259	3,888
2025-08-18	$22.34	$22.50	28.2%	8.1%	33.3%	16.0%	28.2%	3.9%	-0.5%	54.4K	-815.2K	-17.7K	3.75	59.24	12	45	4,185	3,068
2025-08-19	$22.72	$22.50	29.3%	8.4%	31.6%	17.3%	30.4%	3.1%	-0.8%	103.1K	-1.6M	-18.2K	0.83	49.65	30	25	4,191	3,089
2025-08-20	$22.62	$22.50	27.1%	7.8%	31.5%	14.7%	33.1%	2.7%	0.7%	99.2K	-1.4M	-17.6K	1.88	74.96	8	15	4,218	3,089
2025-08-21	$22.84	$22.50	29.5%	8.4%	31.6%	17.4%	28.9%	3.8%	-0.5%	124.2K	-1.8M	-17.8K	0.20	60.34	91	18	4,226	3,093
2025-08-22	$23.05	$22.50	28.1%	8.1%	31.7%	15.8%	25.5%	6.3%	3.9%	149.9K	-2.2M	-17.3K	1.31	75.24	32	42	4,211	3,095
2025-08-25	$22.75	$22.50	29.4%	8.4%	31.5%	17.4%	29.3%	4.8%	-1.1%	112.0K	-1.6M	-16.3K	4.00	71.71	1	4	4,241	3,105
2025-08-26	$22.34	$22.50	28.9%	8.3%	30.5%	16.7%	28.9%	9.1%	2.6%	84.4K	-946.1K	-15.6K	1.00	74.49	2	2	4,242	3,105
2025-08-27	$22.51	$22.50	23.1%	6.6%	30.6%	8.4%	0.0%	8.4%	12.8%	86.6K	-1.3M	-15.3K	0.08	96.79	13	1	4,244	3,106
2025-08-28	$22.09	$22.50	28.2%	8.1%	31.3%	14.4%	28.2%	2.4%	0.0%	45.2K	-502.5K	-14.5K	0.27	82.21	128	35	4,247	3,107
2025-08-29	$22.22	$22.50	26.8%	7.7%	27.4%	12.7%	27.9%	-0.8%	1.4%	61.1K	-762.5K	-14.2K	0.13	75.29	8	1	4,371	3,140