MEMX Options History — December 2025

Name: MEMX Options Analytics - December 2025
Creator: Options Analysis Suite

In December 2025, MEMX traded between $32.52 and $41.90. ATM implied volatility averaged 52.7%, placing in the 31.5% IV rank vs the trailing year. The 30-day expected move averaged 14.1%. IV traded below realized volatility by 43.6% (HV 20d: 96.3%). Net GEX was positive for 0 of 22 trading days. Term structure was in contango for 0 of 22 days.

Notable Days

2025-12-18: Largest IV spike — 98.1% change
2025-12-31: Highest IV Rank — 48.0%
2025-12-03: Largest Expected Move — 25.6%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$37.48	$32.52	$41.90	$32.52	$41.47
ATM IV	52.7%	30.0%	92.9%	79.5%	67.6%
Expected Move	14.1%	8.3%	25.6%	22.8%	19.4%
HV 20d	96.3%	81.3%	117.5%	81.7%	102.4%
HV 60d	67.3%	56.6%	78.9%	56.6%	78.9%
IV Rank	31.5%	19.5%	48.0%	46.9%	48.0%
IV Percentile	45.5%	8.5%	88.1%	85.7%	88.1%
Term Structure	-14.4%	-58.5%	-0.6%	-49.9%	-8.9%
Skew 25d	3.7%	-19.2%	17.1%	8.1%	0.5%
Skew 10d	9.5%	-19.2%	37.9%	12.2%	4.4%
Call IV 25d	43.7%	13.9%	78.3%	71.8%	45.3%
Put IV 25d	47.4%	30.9%	87.5%	80.0%	45.8%
Bid-Ask Spread %	170.22	155.52	174.34	155.56	170.15
Net GEX	0	0	0	0	0
Net DEX	0	0	0	0	0
Net VEX	0	0	0	0	0
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
Total Volume	0	0	0	0	0
Total OI	0	0	0	0	0

Daily Data (22 trading days)

Date	Price	Max Pain	ATM IV	Exp Move	HV 20d	IV Rank	VWIV	Skew 25d	Term Str	Spread %	Call Wall	Put Wall
2025-12-01	$32.52	$0.00	79.5%	22.8%	81.7%	0.0%	0.0%	8.1%	-49.9%	155.56	N/A	N/A
2025-12-02	$32.52	$0.00	85.0%	24.4%	81.3%	0.0%	0.0%	8.9%	-55.2%	155.52	N/A	N/A
2025-12-03	$32.52	$0.00	89.5%	25.6%	81.3%	0.0%	0.0%	9.1%	-58.5%	156.02	N/A	N/A
2025-12-04	$32.52	$0.00	92.9%	16.3%	81.3%	0.0%	0.0%	-19.2%	-34.7%	173.78	N/A	N/A
2025-12-05	$36.84	$0.00	39.4%	8.3%	93.5%	0.0%	0.0%	3.5%	-5.5%	174.00	N/A	N/A
2025-12-08	$36.84	$0.00	43.5%	8.6%	93.5%	0.0%	0.0%	3.5%	-6.4%	173.18	N/A	N/A
2025-12-09	$36.84	$0.00	46.1%	8.7%	93.3%	0.0%	0.0%	3.2%	-7.1%	173.78	N/A	N/A
2025-12-10	$37.20	$0.00	30.0%	8.6%	93.3%	0.0%	0.0%	3.3%	-6.9%	172.51	N/A	N/A
2025-12-11	$41.90	$0.00	50.3%	14.4%	102.1%	0.0%	0.0%	0.0%	-0.6%	172.01	N/A	N/A
2025-12-12	$41.89	$0.00	56.3%	16.1%	102.1%	0.0%	0.0%	0.0%	-1.0%	173.38	N/A	N/A
2025-12-15	$41.89	$0.00	58.8%	16.9%	102.1%	0.0%	0.0%	0.0%	-1.5%	174.34	N/A	N/A
2025-12-16	$37.04	$0.00	32.3%	9.3%	111.5%	0.0%	0.0%	6.2%	-5.1%	172.15	N/A	N/A
2025-12-17	$37.04	$0.00	33.4%	9.6%	111.5%	0.0%	0.0%	6.9%	-5.8%	172.61	N/A	N/A
2025-12-18	$41.13	$0.00	66.2%	19.0%	117.5%	46.9%	0.0%	0.0%	-5.1%	173.15	N/A	N/A
2025-12-19	$41.13	$0.00	63.2%	18.1%	106.2%	44.5%	0.0%	0.0%	-5.4%	172.81	N/A	N/A
2025-12-22	$40.45	$0.00	54.3%	15.6%	98.1%	37.4%	0.0%	17.1%	-5.6%	172.17	N/A	N/A
2025-12-23	$36.58	$0.00	31.8%	9.1%	93.2%	19.5%	0.0%	3.2%	-7.7%	172.37	N/A	N/A
2025-12-24	$36.58	$0.00	32.4%	9.3%	93.3%	19.9%	0.0%	2.4%	-9.0%	172.26	N/A	N/A
2025-12-26	$36.58	$0.00	33.3%	9.6%	93.3%	20.6%	0.0%	1.6%	-9.8%	171.87	N/A	N/A
2025-12-29	$36.58	$0.00	36.0%	10.3%	93.3%	22.8%	0.0%	1.2%	-13.1%	170.84	N/A	N/A
2025-12-30	$36.58	$0.00	37.4%	10.7%	93.3%	23.9%	0.0%	0.5%	-14.6%	170.28	N/A	N/A
2025-12-31	$41.47	$0.00	67.6%	19.4%	102.4%	48.0%	0.0%	0.0%	-8.9%	170.15	N/A	N/A