PFE Options History — October 2025

In October 2025, PFE traded between $24.23 and $27.48. ATM implied volatility averaged 29.5%, placing in the 30.8% IV rank vs the trailing year. The 30-day expected move averaged 8.4%. IV traded below realized volatility by 7.9% (HV 20d: 37.5%). Max pain ranged from $25.00 to $25.00. Net GEX was positive for 22 of 23 trading days. Term structure was in contango for 4 of 23 days. Put/call ratio averaged 0.35.

Notable Days

2025-10-01: Highest Volume — 980,541 contracts
2025-10-06: Largest IV spike — 8.8% change
2025-10-10: Highest IV Rank — 42.5%
2025-10-30: Largest Expected Move — 9.2%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$25.15	$24.23	$27.48	$27.26	$24.68
Max Pain	$25.00	$25.00	$25.00	$25.00	$25.00
ATM IV	29.5%	26.2%	34.0%	26.7%	28.4%
Expected Move	8.4%	7.4%	9.2%	8.4%	8.9%
HV 20d	37.5%	19.3%	42.2%	38.3%	19.3%
HV 60d	30.7%	27.3%	32.0%	30.8%	27.3%
IV Rank	30.8%	21.9%	42.5%	23.4%	27.9%
IV Percentile	85.4%	64.7%	95.6%	72.2%	84.9%
Term Structure	-1.0%	-8.1%	4.8%	4.8%	-2.4%
VWIV	29.9%	27.4%	32.6%	30.1%	32.6%
Skew 25d	-1.2%	-2.6%	0.2%	0.2%	-1.6%
Skew 10d	-3.5%	-6.4%	0.6%	0.1%	-3.9%
Call IV 25d	30.0%	26.0%	35.2%	26.9%	29.8%
Put IV 25d	28.8%	25.7%	32.6%	27.1%	28.3%
Bid-Ask Spread %	10.99	3.68	47.91	8.62	9.35
Gamma HHI	0.09	0.07	0.20	0.11	0.09
Net GEX	28.7M	-2.0M	100.1M	59.4M	26.8M
Net DEX	-264.3M	-1.90B	417.0M	-1.75B	-90.8M
Net VEX	-12.5M	-13.1M	-12.2M	-12.9M	-12.5M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.35	0.13	1.25	0.17	0.34
Total Volume	242,834.913	99,116	980,541	980,541	126,842
Total OI	3,405,593.783	3,010,146	3,744,212	3,010,146	3,744,212

Daily Data (23 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
2025-10-01	$27.26	$25.00	26.7%	8.4%	38.3%	23.4%	30.1%	0.2%	4.8%	59.4M	-1.75B	-12.9M	0.17	8.62	834,995	145,546	1,786,666	1,223,480
2025-10-02	$27.02	$25.00	26.2%	7.4%	38.2%	21.9%	27.5%	0.1%	4.5%	72.0M	-1.61B	-12.8M	0.32	3.79	245,343	78,392	1,867,957	1,279,143
2025-10-03	$27.48	$25.00	28.3%	7.6%	38.4%	27.4%	27.4%	-1.2%	4.7%	100.1M	-1.90B	-13.1M	0.16	3.68	376,407	61,805	1,884,275	1,300,795
2025-10-06	$26.44	$25.00	30.8%	8.4%	41.0%	34.0%	30.3%	0.1%	-0.7%	54.0M	-1.02B	-12.9M	0.44	9.70	212,681	93,439	1,805,048	1,230,474
2025-10-07	$26.20	$25.00	30.7%	8.3%	41.1%	33.8%	29.5%	-0.6%	-1.5%	48.7M	-852.6M	-13.0M	0.44	9.22	173,049	76,744	1,861,084	1,287,791
2025-10-08	$25.68	$25.00	31.1%	8.4%	41.8%	34.9%	29.3%	-0.3%	-1.4%	38.3M	-523.7M	-12.9M	0.43	9.39	201,906	87,463	1,910,761	1,323,006
2025-10-09	$25.26	$25.00	32.4%	8.4%	42.2%	38.3%	29.6%	-1.1%	-2.2%	24.4M	-227.8M	-12.6M	0.50	9.82	130,056	65,632	1,944,138	1,357,602
2025-10-10	$24.76	$25.00	34.0%	9.0%	40.6%	42.5%	31.0%	-2.6%	-2.3%	11.1M	119.0M	-12.5M	0.41	17.28	211,019	86,008	1,988,659	1,384,826
2025-10-13	$24.73	$25.00	32.0%	8.6%	40.6%	37.3%	30.2%	-0.7%	-1.4%	13.9M	75.8M	-12.5M	0.38	6.86	127,097	48,290	1,972,135	1,381,708
2025-10-14	$24.49	$25.00	31.0%	8.5%	40.8%	34.6%	30.7%	-2.0%	-0.7%	6.9M	209.3M	-12.4M	0.39	10.00	141,403	55,525	2,002,975	1,393,843
2025-10-15	$24.38	$25.00	31.9%	8.6%	40.8%	37.0%	31.1%	-2.2%	-2.3%	2.1M	312.0M	-12.3M	0.27	9.11	137,933	37,371	2,032,319	1,429,715
2025-10-16	$24.23	$25.00	31.1%	8.5%	40.8%	34.9%	30.1%	-1.2%	-1.8%	-2.0M	417.0M	-12.2M	0.39	8.77	132,474	52,043	2,066,856	1,442,795
2025-10-17	$24.52	$25.00	30.8%	8.5%	41.1%	34.1%	29.9%	-2.1%	-1.8%	17.7M	181.7M	-12.4M	0.23	14.26	180,349	40,795	2,112,874	1,447,854
2025-10-20	$24.63	$25.00	28.8%	8.1%	41.1%	28.8%	28.4%	-0.5%	-1.3%	19.6M	29.0M	-12.3M	0.17	8.88	128,739	22,334	1,978,418	1,367,404
2025-10-21	$24.80	$25.00	28.2%	8.0%	41.1%	27.1%	28.5%	-0.5%	-1.5%	32.0M	-86.2M	-12.4M	0.19	4.84	128,817	24,427	2,037,173	1,379,014
2025-10-22	$24.69	$25.00	28.2%	8.1%	41.1%	27.3%	29.2%	-1.3%	-1.4%	28.4M	-23.4M	-12.4M	0.42	7.15	115,029	47,777	2,077,253	1,397,668
2025-10-23	$24.62	$25.00	29.1%	8.4%	40.7%	29.5%	29.4%	-1.9%	-2.9%	23.6M	46.7M	-12.7M	0.21	7.94	103,687	21,274	2,131,438	1,432,721
2025-10-24	$24.73	$25.00	27.8%	8.1%	40.7%	26.1%	28.5%	-0.8%	-2.2%	21.0M	-26.1M	-12.7M	0.20	16.12	156,256	32,039	2,160,316	1,437,888
2025-10-27	$24.73	$25.00	27.5%	8.4%	40.7%	25.3%	30.5%	-1.6%	0.7%	23.7M	-22.0M	-12.3M	0.19	5.80	90,796	16,822	2,120,458	1,431,553
2025-10-28	$24.41	$25.00	28.3%	8.6%	31.9%	27.5%	31.2%	-1.7%	-0.6%	16.0M	196.3M	-12.2M	0.30	9.17	75,984	23,132	2,162,303	1,441,931
2025-10-29	$24.34	$25.00	27.5%	8.8%	19.8%	25.4%	30.7%	-2.6%	-8.1%	11.3M	228.5M	-12.3M	1.25	47.91	85,893	107,695	2,182,986	1,454,918
2025-10-30	$24.38	$25.00	28.6%	9.2%	19.9%	28.4%	32.2%	-2.2%	-1.8%	12.0M	237.0M	-12.3M	0.13	15.09	216,338	27,557	2,199,727	1,472,497
2025-10-31	$24.68	$25.00	28.4%	8.9%	19.3%	27.9%	32.6%	-1.6%	-2.4%	26.8M	-90.8M	-12.5M	0.34	9.35	94,508	32,334	2,272,639	1,471,573