CBU Options History — December 2025

In December 2025, CBU traded between $57.41 and $61.17. ATM implied volatility averaged 40.6%, placing in the 22.9% IV rank vs the trailing year. The 30-day expected move averaged 10.6%. IV traded above realized volatility by 13.1% (HV 20d: 27.5%). Max pain ranged from $55.00 to $65.00. Net GEX was positive for 22 of 22 trading days. Term structure was in contango for 1 of 22 days. Put/call ratio averaged 0.00.

Notable Days

2025-12-29: Highest Volume — 6 contracts
2025-12-31: Largest IV drop — 57.5% change
2025-12-08: Highest IV Rank — 40.6%
2025-12-03: Largest Expected Move — 14.0%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$59.26	$57.41	$61.17	$58.07	$57.41
Max Pain	$60.23	$55.00	$65.00	$60.00	$55.00
ATM IV	40.6%	19.9%	57.9%	48.6%	19.9%
Expected Move	10.6%	5.7%	14.0%	13.9%	5.7%
HV 20d	27.5%	20.9%	32.2%	29.4%	21.4%
HV 60d	27.4%	26.8%	28.2%	27.7%	26.9%
IV Rank	22.9%	1.6%	40.6%	31.1%	1.6%
IV Percentile	51.0%	0.8%	88.5%	78.6%	0.8%
Term Structure	-10.9%	-24.3%	10.0%	-21.4%	10.0%
VWIV	31.1%	29.7%	32.6%	29.7%	32.6%
Skew 25d	-17.2%	-42.2%	0.9%	-33.8%	-42.2%
Skew 10d	-19.5%	-42.3%	8.6%	-40.0%	-41.0%
Call IV 25d	52.1%	43.7%	68.0%	64.3%	62.2%
Put IV 25d	35.0%	20.0%	49.1%	30.5%	20.0%
Bid-Ask Spread %	125.91	123.50	128.49	128.05	123.66
Gamma HHI	0.51	0.41	0.65	0.44	0.59
Net GEX	3.7K	1.2K	5.8K	1.4K	5.3K
Net DEX	-100.6K	-155.9K	-58.4K	-58.4K	-70.9K
Net VEX	-753	-952	-511	-527	-890
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.00	0.00	0.00	0.00	0.00
Total Volume	0.727	0	6	3	0
Total OI	110.227	94	124	94	120

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	Spread %	Call Vol	Put Vol	Call OI	Put OI
2025-12-01	$58.07	$60.00	48.6%	13.9%	29.4%	31.1%	0.0%	-33.8%	-21.4%	1.4K	-58.4K	-527	128.05	3	0	38	56
2025-12-02	$57.89	$60.00	47.4%	13.6%	29.5%	29.8%	0.0%	-35.1%	-23.0%	1.2K	-63.6K	-511	126.77	0	0	41	56
2025-12-03	$58.24	$60.00	49.0%	14.0%	29.5%	31.5%	0.0%	-35.6%	-23.7%	1.9K	-73.2K	-544	127.68	0	0	41	56
2025-12-04	$58.59	$55.00	50.7%	9.1%	28.9%	33.2%	0.0%	0.9%	-5.5%	1.8K	-77.4K	-551	126.81	0	0	41	56
2025-12-05	$58.41	$55.00	52.4%	9.2%	28.8%	35.0%	0.0%	0.9%	-9.6%	1.9K	-64.2K	-546	127.18	0	0	39	56
2025-12-08	$59.55	$55.00	57.9%	8.9%	29.4%	40.6%	0.0%	0.4%	-4.7%	1.9K	-85.8K	-543	127.67	0	0	39	56
2025-12-09	$58.64	$55.00	44.6%	9.2%	30.1%	27.0%	0.0%	0.8%	-8.7%	1.9K	-70.4K	-524	128.36	1	0	39	56
2025-12-10	$60.50	$55.00	31.5%	9.0%	31.8%	13.5%	0.0%	0.4%	-4.5%	2.3K	-100.1K	-530	128.32	0	0	40	56
2025-12-11	$61.17	$55.00	31.7%	9.1%	32.0%	13.7%	0.0%	0.4%	-2.8%	2.2K	-108.8K	-530	127.18	0	0	40	56
2025-12-12	$59.80	$55.00	32.5%	9.3%	32.1%	14.5%	29.7%	0.5%	-6.4%	5.8K	-155.9K	-939	128.49	0	3	62	56
2025-12-15	$60.49	$55.00	33.7%	9.7%	32.2%	15.8%	32.6%	0.6%	-4.3%	5.2K	-148.5K	-937	128.22	0	3	62	59
2025-12-16	$60.18	$65.00	35.9%	10.3%	29.5%	18.1%	0.0%	-21.4%	-6.3%	4.7K	-132.1K	-952	123.91	0	0	62	62
2025-12-17	$60.36	$65.00	34.9%	10.0%	27.1%	17.0%	0.0%	-14.5%	-2.9%	4.3K	-144.1K	-938	124.33	0	0	62	62
2025-12-18	$61.01	$65.00	35.1%	10.1%	26.7%	17.3%	0.0%	-10.7%	-4.6%	4.0K	-153.3K	-942	124.60	0	0	62	62
2025-12-19	$59.59	$65.00	36.4%	10.4%	28.6%	18.5%	0.0%	-15.9%	-11.4%	5.1K	-105.9K	-908	123.50	0	0	62	62
2025-12-22	$59.48	$65.00	38.5%	11.0%	25.0%	20.7%	0.0%	-18.8%	-14.1%	4.8K	-115.7K	-887	124.22	0	0	59	58
2025-12-23	$59.45	$65.00	39.3%	11.3%	24.8%	21.5%	0.0%	-19.7%	-15.3%	4.9K	-112.5K	-881	124.13	0	0	59	58
2025-12-24	$59.14	$65.00	40.1%	11.5%	23.2%	22.3%	0.0%	-31.9%	-16.4%	5.0K	-104.8K	-883	124.27	0	0	59	58
2025-12-26	$59.03	$65.00	42.1%	12.1%	23.0%	24.4%	0.0%	-23.2%	-18.3%	5.3K	-100.8K	-849	123.85	0	0	59	58
2025-12-29	$58.62	$65.00	45.5%	13.0%	21.9%	27.9%	0.0%	-38.5%	-22.0%	5.2K	-97.7K	-843	124.07	0	6	59	58
2025-12-30	$58.12	$65.00	46.7%	13.4%	20.9%	29.1%	0.0%	-41.0%	-24.3%	4.9K	-69.0K	-911	124.72	0	0	59	64
2025-12-31	$57.41	$55.00	19.9%	5.7%	21.4%	1.6%	0.0%	-42.2%	10.0%	5.3K	-70.9K	-890	123.66	0	0	59	61