CSGS Options History — February 2026

In February 2026, CSGS traded between $79.36 and $80.00. ATM implied volatility averaged 17.5%, placing in the 11.1% IV rank vs the trailing year. The 30-day expected move averaged 4.7%. IV traded above realized volatility by 12.1% (HV 20d: 5.4%). Max pain ranged from $75.00 to $80.00. Net GEX was positive for 19 of 19 trading days. Term structure was in contango for 5 of 19 days. Put/call ratio averaged 1.06.

Notable Days

  • 2026-02-24: Highest Volume — 283 contracts
  • 2026-02-11: Largest IV drop — 36.1% change
  • 2026-02-10: Highest IV Rank — 15.7%
  • 2026-02-26: Largest Expected Move — 5.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$79.76$79.36$80.00$79.75$79.91
Max Pain$75.79$75.00$80.00$80.00$75.00
ATM IV17.5%14.2%22.2%16.8%15.8%
Expected Move4.7%4.0%5.5%4.8%4.5%
HV 20d5.4%4.1%10.8%10.6%4.5%
HV 60d7.9%7.8%8.1%7.9%7.8%
IV Rank11.1%7.8%15.7%10.3%9.3%
IV Percentile13.6%5.6%20.6%11.1%10.7%
Term Structure-2.0%-10.3%19.9%0.5%19.9%
VWIV78.5%6.0%136.7%6.0%136.7%
Skew 25d67.5%11.2%106.6%13.2%17.2%
Skew 10d91.3%6.4%152.7%7.8%9.8%
Call IV 25d9.3%4.5%22.3%7.0%4.5%
Put IV 25d76.8%19.5%114.5%20.1%21.7%
Bid-Ask Spread %97.5276.22115.9091.7096.71
Gamma HHI0.810.440.990.840.83
Net GEX432.8K296.8K1.0M319.4K435.8K
Net DEX-4.4M-4.6M-4.1M-4.5M-4.4M
Net VEX-7.8K-13.5K-6.0K-7.0K-6.9K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.060.006.080.003.00
Total Volume42.47402831024
Total OI4,010.0533,0744,4034,2173,107

Daily Data (19 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2026-02-02$79.75$80.0016.8%4.8%10.6%10.3%0.0%13.2%0.5%319.4K-4.5M-7.0K0.0091.70N/AN/A1001,2013,016
2026-02-03$79.70$80.0017.2%4.9%10.6%10.8%6.0%14.2%0.4%373.1K-4.4M-10.5K0.0086.36N/AN/A2401,2013,016
2026-02-04$79.36$80.0017.7%5.1%10.8%11.3%0.0%11.2%7.1%296.8K-4.1M-13.5K0.0181.57N/AN/A10011,2053,016
2026-02-05$79.90$75.0018.4%4.0%4.1%11.9%0.0%76.4%-0.6%367.2K-4.5M-6.6K1.00108.77N/AN/A20201,3053,017
2026-02-06$79.95$75.0018.8%4.0%4.1%12.3%0.0%75.9%-0.1%443.2K-4.5M-6.5K0.20109.10N/AN/A90181,2862,997
2026-02-09$79.66$75.0021.2%4.0%4.3%14.7%0.0%78.4%-9.0%299.0K-4.6M-8.8K0.33108.65N/AN/A67221,3363,015
2026-02-10$79.74$75.0022.2%4.3%4.3%15.7%0.0%83.7%-1.4%404.0K-4.5M-8.4K0.00108.65N/AN/A021,3353,017
2026-02-11$79.73$75.0014.2%4.1%4.3%7.8%50.8%71.5%-9.4%384.9K-4.5M-8.7K0.00115.90N/AN/A0181,3353,018
2026-02-12$79.63$75.0014.6%4.2%4.3%8.2%0.0%82.3%-9.8%301.3K-4.5M-8.9K0.00108.73N/AN/A011,3353,036
2026-02-13$79.84$75.0015.5%4.4%4.4%9.1%0.0%86.0%-1.8%478.0K-4.6M-8.4K0.00100.06N/AN/A0211,3353,036
2026-02-17$79.68$75.0015.9%4.5%4.4%9.4%120.4%89.1%-10.3%361.7K-4.5M-7.4K0.0099.83N/AN/A0361,3353,057
2026-02-18$79.64$75.0015.9%4.6%4.4%9.5%0.0%92.0%-9.7%402.6K-4.4M-7.2K0.0094.42N/AN/A0121,3353,068
2026-02-19$79.66$75.0017.1%4.9%4.3%10.6%0.0%99.1%10.5%336.0K-4.4M-7.2K0.0094.36N/AN/A001,3353,068
2026-02-20$79.95$75.0017.0%4.9%4.5%10.5%0.0%95.5%-4.3%1.0M-4.6M-7.0K0.0094.52N/AN/A001,3353,068
2026-02-23$79.73$75.0018.3%5.2%4.6%11.8%0.0%105.9%-5.2%411.9K-4.1M-6.4K0.0094.42N/AN/A401,1921,930
2026-02-24$79.87$75.0018.4%5.3%4.6%12.0%0.0%42.1%-5.0%503.1K-4.4M-6.5K6.0876.22N/AN/A402431,1941,930
2026-02-25$79.76$75.0018.9%5.4%4.6%12.5%0.0%43.0%-5.5%445.4K-4.3M-6.6K0.0388.14N/AN/A3011,1541,920
2026-02-26$80.00$75.0019.1%5.5%4.7%12.6%0.0%106.6%-4.8%648.4K-4.5M-6.0K0.0094.75N/AN/A031,1841,921
2026-02-27$79.91$75.0015.8%4.5%4.5%9.3%136.7%17.2%19.9%435.8K-4.4M-6.9K3.0096.71N/AN/A6181,1841,923