PFE Options History — August 2025

In August 2025, PFE traded between $23.48 and $25.84. ATM implied volatility averaged 20.7%, placing in the 4.7% IV rank vs the trailing year. The 30-day expected move averaged 6.0%. IV traded below realized volatility by 9.6% (HV 20d: 30.3%). Max pain ranged from $25.00 to $25.00. Net GEX was positive for 19 of 21 trading days. Term structure was in contango for 16 of 21 days. Put/call ratio averaged 0.47.

Notable Days

2025-08-05: Highest Volume — 228,898 contracts
2025-08-05: Largest IV drop — 21.6% change
2025-08-04: Highest IV Rank — 23.6%
2025-08-01: Largest Expected Move — 8.9%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$24.81	$23.48	$25.84	$23.48	$24.73
Max Pain	$25.00	$25.00	$25.00	$25.00	$25.00
ATM IV	20.7%	17.8%	28.3%	27.2%	20.1%
Expected Move	6.0%	5.1%	8.9%	8.9%	5.8%
HV 20d	30.3%	24.5%	33.2%	24.5%	28.3%
HV 60d	24.9%	23.8%	26.9%	24.8%	24.9%
IV Rank	4.7%	0.0%	23.6%	20.5%	6.1%
IV Percentile	10.5%	0.0%	83.3%	75.4%	6.3%
Term Structure	0.3%	-0.8%	0.8%	-0.7%	0.4%
VWIV	21.1%	18.0%	31.6%	31.6%	19.4%
Skew 25d	2.1%	1.1%	3.3%	1.9%	1.8%
Skew 10d	3.8%	-1.6%	7.3%	4.1%	3.7%
Call IV 25d	19.7%	17.3%	26.8%	26.8%	19.0%
Put IV 25d	21.9%	19.7%	28.9%	28.7%	20.7%
Bid-Ask Spread %	4.68	2.78	15.11	15.11	8.30
Gamma HHI	0.16	0.09	0.39	0.09	0.09
Net GEX	33.8M	-21.6M	95.4M	-21.6M	3.7M
Net DEX	16.3M	-496.9M	693.6M	693.6M	174.9M
Net VEX	-9.9M	-10.3M	-9.5M	-10.0M	-9.7M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.47	0.18	1.40	0.66	0.38
Total Volume	100,159.238	43,630	228,898	78,359	56,762
Total OI	2,735,716.286	2,505,724	2,963,759	2,801,267	2,674,200

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	$23.48	$25.00	27.2%	8.9%	24.5%	20.5%	31.6%	1.9%	-0.7%	-21.6M	693.6M	-10.0M	0.66	15.11	47,129	31,230	1,440,119	1,361,148
2025-08-04	$23.52	$25.00	28.3%	7.7%	24.5%	23.6%	27.1%	2.3%	-0.8%	-10.5M	611.9M	-9.7M	0.71	3.24	123,613	87,689	1,420,538	1,314,073
2025-08-05	$24.77	$25.00	22.2%	6.4%	30.8%	6.6%	22.6%	2.9%	0.0%	39.7M	-43.2M	-10.3M	0.37	4.16	166,956	61,942	1,507,407	1,362,280
2025-08-06	$23.95	$25.00	22.1%	6.5%	32.8%	6.4%	23.0%	2.5%	0.2%	6.6M	433.1M	-9.8M	0.37	3.77	87,152	32,038	1,530,405	1,384,893
2025-08-07	$24.29	$25.00	21.1%	6.5%	32.9%	3.6%	22.8%	2.6%	0.2%	31.1M	247.0M	-10.0M	0.53	3.96	43,052	22,764	1,563,672	1,387,243
2025-08-08	$24.55	$25.00	20.1%	5.8%	33.2%	0.8%	19.9%	3.3%	0.7%	66.2M	79.5M	-10.0M	0.27	3.89	54,014	14,461	1,572,626	1,391,133
2025-08-11	$24.61	$25.00	19.7%	5.7%	33.1%	0.0%	20.0%	1.5%	-0.1%	39.2M	86.0M	-9.8M	0.43	3.93	47,869	20,672	1,502,044	1,321,314
2025-08-12	$24.59	$25.00	19.6%	5.8%	31.1%	0.0%	20.7%	1.9%	0.4%	40.4M	120.0M	-9.8M	0.44	4.23	37,619	16,732	1,516,279	1,328,141
2025-08-13	$25.14	$25.00	19.9%	5.8%	32.1%	0.8%	20.0%	2.4%	0.7%	78.3M	-260.0M	-10.2M	0.32	6.22	94,723	30,169	1,520,637	1,336,243
2025-08-14	$25.06	$25.00	20.0%	5.8%	32.1%	1.0%	20.1%	1.6%	0.2%	95.4M	-220.3M	-10.1M	0.23	2.78	60,421	13,807	1,543,073	1,341,268
2025-08-15	$25.19	$25.00	19.7%	5.8%	32.1%	0.2%	20.2%	2.7%	0.8%	67.6M	-343.4M	-10.0M	0.33	4.55	86,071	28,506	1,548,145	1,342,797
2025-08-18	$25.09	$25.00	18.3%	5.3%	32.0%	0.0%	18.2%	2.9%	0.5%	38.3M	-92.4M	-9.9M	0.38	3.47	52,606	20,250	1,345,118	1,160,606
2025-08-19	$25.30	$25.00	18.8%	5.4%	29.9%	1.4%	18.9%	2.7%	0.4%	42.3M	-191.3M	-10.0M	0.18	3.10	68,708	12,527	1,374,849	1,167,550
2025-08-20	$25.41	$25.00	18.6%	5.3%	29.8%	0.9%	18.7%	2.7%	0.4%	51.4M	-318.3M	-10.3M	0.43	3.61	72,287	31,266	1,405,755	1,171,124
2025-08-21	$25.70	$25.00	19.6%	5.6%	30.0%	3.5%	19.7%	1.6%	-0.0%	46.5M	-440.1M	-10.3M	0.30	3.53	88,936	26,509	1,416,063	1,188,161
2025-08-22	$25.84	$25.00	17.8%	5.1%	29.1%	0.0%	18.0%	2.4%	0.6%	45.5M	-496.9M	-10.2M	0.23	4.82	79,205	18,096	1,430,746	1,192,878
2025-08-25	$25.16	$25.00	19.8%	5.7%	29.9%	5.2%	19.8%	1.3%	0.8%	23.0M	-80.8M	-9.8M	0.79	3.76	66,160	51,953	1,379,689	1,162,434
2025-08-26	$24.94	$25.00	20.8%	6.0%	30.1%	7.8%	21.7%	1.6%	-0.4%	14.7M	54.0M	-9.8M	1.40	3.44	40,203	56,460	1,394,660	1,190,438
2025-08-27	$25.09	$25.00	20.0%	5.7%	29.1%	5.8%	19.8%	1.4%	0.6%	12.0M	42.9M	-9.6M	0.62	4.52	26,946	16,684	1,397,502	1,225,479
2025-08-28	$24.59	$25.00	19.9%	5.7%	28.5%	5.4%	20.4%	1.1%	0.6%	162.8K	287.0M	-9.5M	0.44	3.91	75,615	33,542	1,409,026	1,228,286
2025-08-29	$24.73	$25.00	20.1%	5.8%	28.3%	6.1%	19.4%	1.8%	0.4%	3.7M	174.9M	-9.7M	0.38	8.30	41,055	15,707	1,441,842	1,232,358