ATS Options History — December 2025

In December 2025, ATS traded between $25.00 and $28.45. ATM implied volatility averaged 52.2%, placing in the 21.5% IV rank vs the trailing year. The 30-day expected move averaged 13.1%. IV traded above realized volatility by 15.5% (HV 20d: 36.7%). Max pain ranged from $25.00 to $25.00. Net GEX was positive for 22 of 22 trading days. Term structure was in contango for 4 of 22 days. Put/call ratio averaged 1.61.

Notable Days

2025-12-05: Highest Volume — 53 contracts
2025-12-02: Largest IV spike — 115.9% change
2025-12-09: Highest IV Rank — 46.7%
2025-12-31: Largest Expected Move — 18.7%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$27.24	$25.00	$28.45	$25.13	$27.51
Max Pain	$25.00	$25.00	$25.00	$25.00	$25.00
ATM IV	52.2%	29.3%	83.0%	29.7%	65.2%
Expected Move	13.1%	7.6%	18.7%	8.5%	18.7%
HV 20d	36.7%	31.8%	49.4%	48.4%	34.6%
HV 60d	39.8%	38.3%	41.7%	41.1%	38.3%
IV Rank	21.5%	2.7%	46.7%	3.1%	32.1%
IV Percentile	55.8%	4.4%	94.8%	5.6%	81.7%
Term Structure	-8.5%	-21.5%	21.2%	15.3%	-19.6%
Skew 25d	9.6%	-18.3%	36.3%	5.9%	13.8%
Skew 10d	17.2%	-1.2%	62.9%	12.6%	60.5%
Call IV 25d	42.6%	19.6%	60.7%	29.2%	60.7%
Put IV 25d	52.2%	24.7%	79.8%	35.0%	74.5%
Bid-Ask Spread %	127.39	113.89	135.77	113.89	125.93
Gamma HHI	0.62	0.37	0.87	0.53	0.39
Net GEX	5.5K	1.2K	12.7K	2.6K	1.9K
Net DEX	-65.9K	-117.4K	-27.9K	-27.9K	-54.6K
Net VEX	-387	-615	-136	-136	-420
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	1.61	0.00	10.00	1.30	0.00
Total Volume	5.091	0	53	0	0
Total OI	182.409	114	230	175	131

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 Wall	Put Wall	Call Vol	Put Vol	Call OI	Put OI
2025-12-01	$25.13	$25.00	29.7%	8.5%	48.4%	3.1%	0.0%	5.9%	15.3%	2.6K	-27.9K	-136	0.00	113.89	N/A	N/A	0	0	173	2
2025-12-02	$25.00	$25.00	64.1%	18.4%	48.0%	31.2%	0.0%	36.3%	-21.4%	5.2K	-62.5K	-258	0.00	135.77	N/A	N/A	0	0	173	2
2025-12-03	$25.75	$25.00	55.6%	15.9%	49.4%	24.3%	0.0%	27.0%	-20.1%	5.8K	-56.9K	-232	0.00	128.10	N/A	N/A	0	0	173	2
2025-12-04	$26.02	$25.00	69.7%	10.8%	36.1%	35.8%	0.0%	24.0%	0.6%	6.3K	-60.3K	-231	0.00	131.33	N/A	N/A	0	0	173	2
2025-12-05	$27.18	$25.00	67.8%	13.2%	36.9%	34.2%	0.0%	5.2%	-11.8%	9.3K	-75.9K	-249	1.30	125.90	N/A	N/A	23	30	173	2
2025-12-08	$27.17	$25.00	70.5%	7.6%	33.5%	36.4%	0.0%	3.2%	-2.0%	8.8K	-67.1K	-468	0.00	117.24	N/A	N/A	3	0	194	32
2025-12-09	$27.10	$25.00	83.0%	11.5%	33.0%	46.7%	0.0%	18.8%	-12.4%	8.8K	-65.6K	-530	0.00	128.62	N/A	N/A	1	0	197	32
2025-12-10	$27.68	$25.00	45.0%	12.9%	33.9%	15.6%	0.0%	3.3%	-10.5%	10.1K	-113.0K	-615	0.00	128.97	N/A	N/A	0	0	198	32
2025-12-11	$27.42	$25.00	29.3%	8.4%	34.0%	2.7%	0.0%	3.9%	-7.4%	9.5K	-77.7K	-562	0.00	118.68	N/A	N/A	0	20	198	32
2025-12-12	$27.63	$25.00	30.0%	8.6%	33.7%	3.3%	0.0%	24.8%	10.1%	10.4K	-98.0K	-444	0.00	127.91	N/A	N/A	0	0	198	27
2025-12-15	$27.07	$25.00	39.8%	11.4%	31.8%	11.3%	0.0%	-18.3%	-21.5%	8.9K	-81.7K	-429	10.00	131.65	N/A	N/A	1	10	198	27
2025-12-16	$28.07	$25.00	46.6%	13.4%	32.9%	16.9%	0.0%	3.9%	-16.1%	12.7K	-117.4K	-399	0.00	128.09	N/A	N/A	0	0	199	22
2025-12-17	$26.72	$25.00	53.4%	15.3%	36.1%	22.5%	0.0%	0.2%	-18.9%	8.2K	-83.0K	-368	0.00	130.17	N/A	N/A	6	0	199	22
2025-12-18	$27.63	$25.00	47.0%	13.5%	37.6%	17.2%	0.0%	1.3%	-13.7%	1.2K	-37.7K	-301	0.00	128.87	N/A	N/A	1	0	202	22
2025-12-19	$27.75	$25.00	37.7%	10.8%	35.6%	9.7%	0.0%	9.4%	21.2%	1.2K	-39.2K	-299	0.00	125.15	N/A	N/A	0	0	202	22
2025-12-22	$28.23	$25.00	46.9%	13.4%	35.7%	17.1%	0.0%	3.4%	-11.5%	1.8K	-57.1K	-447	0.00	130.64	N/A	N/A	0	0	92	22
2025-12-23	$28.45	$25.00	50.6%	14.5%	35.7%	20.2%	0.0%	5.4%	-11.7%	1.9K	-59.9K	-454	0.00	127.02	N/A	N/A	17	0	92	22
2025-12-24	$28.07	$25.00	45.0%	12.9%	35.7%	15.6%	0.0%	9.8%	-1.6%	2.1K	-62.4K	-458	0.00	130.80	N/A	N/A	0	0	109	22
2025-12-26	$28.13	$25.00	52.4%	15.0%	34.9%	21.7%	0.0%	-7.0%	-5.6%	1.8K	-53.0K	-413	0.00	131.31	N/A	N/A	0	0	109	22
2025-12-29	$27.90	$25.00	55.3%	15.9%	35.0%	24.0%	0.0%	18.5%	-12.8%	1.8K	-50.8K	-398	0.00	126.52	N/A	N/A	0	0	109	22
2025-12-30	$27.69	$25.00	63.6%	18.2%	34.6%	30.8%	0.0%	18.8%	-15.1%	1.8K	-48.3K	-402	0.00	130.01	N/A	N/A	0	0	109	22
2025-12-31	$27.51	$25.00	65.2%	18.7%	34.6%	32.1%	0.0%	13.8%	-19.6%	1.9K	-54.6K	-420	0.00	125.93	N/A	N/A	0	0	109	22