CSGS Options History — November 2025

In November 2025, CSGS traded between $77.69 and $78.63. ATM implied volatility averaged 18.1%, placing in the 9.8% IV rank vs the trailing year. The 30-day expected move averaged 4.9%. IV traded below realized volatility by 26.1% (HV 20d: 44.3%). Max pain ranged from $55.00 to $75.00. Net GEX was positive for 19 of 19 trading days. Term structure was in contango for 3 of 19 days. Put/call ratio averaged 0.74.

Notable Days

2025-11-21: Highest Volume — 103 contracts
2025-11-20: Largest IV spike — 436.0% change
2025-11-20: Highest IV Rank — 23.8%
2025-11-20: Largest Expected Move — 10.0%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$78.26	$77.69	$78.63	$78.50	$78.61
Max Pain	$69.21	$55.00	$75.00	$75.00	$70.00
ATM IV	18.1%	6.5%	35.0%	18.6%	24.7%
Expected Move	4.9%	1.9%	10.0%	5.3%	7.1%
HV 20d	44.3%	4.8%	49.9%	49.6%	4.8%
HV 60d	32.6%	31.9%	34.3%	34.3%	31.9%
IV Rank	9.8%	0.2%	23.8%	10.3%	15.3%
IV Percentile	4.7%	0.4%	29.4%	1.6%	9.1%
Term Structure	-3.2%	-13.1%	19.5%	3.3%	-11.9%
VWIV	14.4%	6.0%	19.9%	8.2%	19.9%
Skew 25d	-2.4%	-17.3%	3.3%	3.3%	-0.4%
Skew 10d	-2.1%	-20.7%	36.3%	0.3%	2.7%
Call IV 25d	22.0%	6.6%	43.8%	10.0%	43.8%
Put IV 25d	19.6%	7.6%	43.9%	13.3%	43.5%
Bid-Ask Spread %	109.16	55.08	124.02	57.84	120.69
Gamma HHI	0.70	0.54	0.89	0.61	0.86
Net GEX	75.4K	37.1K	94.0K	74.5K	75.9K
Net DEX	-1.2M	-2.5M	-877.2K	-976.2K	-2.0M
Net VEX	-4.2K	-7.7K	-2.5K	-2.6K	-7.0K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.74	0.00	3.00	0.03	0.00
Total Volume	22.684	0	103	32	0
Total OI	464.211	334	590	334	471

Daily Data (19 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
2025-11-03	$78.50	$75.00	18.6%	5.3%	49.6%	10.3%	8.2%	3.3%	3.3%	74.5K	-976.2K	-2.6K	0.03	57.84	N/A	N/A	31	1	245	89
2025-11-04	$78.16	$75.00	18.6%	5.3%	49.7%	10.2%	0.0%	0.4%	-2.3%	74.1K	-877.2K	-2.6K	0.00	55.08	N/A	N/A	0	12	249	88
2025-11-05	$78.34	$75.00	18.0%	5.2%	49.8%	9.7%	6.0%	2.7%	19.5%	63.7K	-894.0K	-3.0K	0.22	62.72	N/A	N/A	41	9	249	100
2025-11-06	$78.24	$55.00	18.9%	6.4%	49.9%	10.5%	18.5%	-17.3%	-11.7%	87.4K	-926.7K	-3.5K	1.00	117.83	N/A	N/A	1	1	335	109
2025-11-07	$78.28	$55.00	18.9%	3.5%	48.4%	10.5%	18.3%	-5.9%	-1.5%	87.1K	-891.9K	-3.5K	0.00	116.21	N/A	N/A	0	2	336	109
2025-11-10	$78.06	$70.00	19.8%	3.6%	48.6%	11.2%	0.0%	-4.9%	-1.9%	84.3K	-889.2K	-3.0K	1.40	114.88	N/A	N/A	5	7	336	111
2025-11-11	$78.59	$70.00	22.0%	3.7%	48.5%	13.1%	0.0%	-6.1%	-1.6%	88.2K	-1.0M	-3.0K	0.00	114.71	N/A	N/A	2	0	336	119
2025-11-12	$78.55	$70.00	23.2%	6.7%	48.4%	14.1%	15.9%	1.0%	-13.1%	88.8K	-1.0M	-3.4K	3.00	117.44	N/A	N/A	1	3	338	119
2025-11-13	$78.42	$70.00	12.4%	3.5%	48.3%	5.0%	0.0%	-5.6%	-2.0%	93.9K	-880.5K	-3.0K	0.17	118.47	N/A	N/A	6	1	339	122
2025-11-14	$78.27	$70.00	12.6%	3.6%	48.4%	5.2%	0.0%	-6.5%	-2.0%	75.4K	-924.1K	-3.4K	0.71	118.65	N/A	N/A	28	20	340	123
2025-11-17	$78.28	$70.00	8.7%	2.5%	48.5%	2.0%	0.0%	-3.5%	-2.2%	68.0K	-947.4K	-3.9K	0.50	120.44	N/A	N/A	10	5	368	143
2025-11-18	$78.25	$70.00	8.8%	2.5%	48.6%	2.1%	0.0%	-2.5%	-2.3%	70.3K	-962.1K	-4.1K	0.00	124.02	N/A	N/A	36	0	378	147
2025-11-19	$78.18	$70.00	6.5%	1.9%	48.7%	0.2%	0.0%	0.1%	-2.7%	78.5K	-1.0M	-4.6K	1.47	117.91	N/A	N/A	19	28	412	147
2025-11-20	$77.85	$70.00	35.0%	10.0%	48.9%	23.8%	0.0%	1.2%	-11.8%	94.0K	-1.2M	-5.4K	1.90	116.55	N/A	N/A	20	38	431	129
2025-11-21	$77.69	$70.00	8.7%	2.5%	49.0%	2.0%	0.0%	-1.0%	15.0%	41.9K	-1.2M	-5.5K	0.00	119.06	N/A	N/A	103	0	451	139
2025-11-24	$77.81	$70.00	22.2%	6.4%	48.9%	13.2%	19.9%	0.4%	-10.7%	75.7K	-1.8M	-7.7K	0.00	122.01	N/A	N/A	1	0	377	93
2025-11-25	$78.21	$70.00	23.0%	6.6%	48.7%	13.9%	0.0%	-0.3%	-10.8%	73.6K	-1.9M	-7.4K	0.00	118.85	N/A	N/A	0	0	378	93
2025-11-26	$78.63	$70.00	23.7%	6.8%	5.3%	14.4%	0.0%	-0.4%	-10.9%	37.1K	-2.5M	-2.5K	0.00	120.62	N/A	N/A	0	0	378	93
2025-11-28	$78.61	$70.00	24.7%	7.1%	4.8%	15.3%	0.0%	-0.4%	-11.9%	75.9K	-2.0M	-7.0K	0.00	120.69	N/A	N/A	0	0	378	93