CSGS Options History — October 2025 In October 2025, CSGS traded between $63.17 and $78.77. ATM implied volatility averaged 40.4%, placing in the 22.9% IV rank vs the trailing year. The 30-day expected move averaged 8.7%. IV traded above realized volatility by 17.2% (HV 20d: 23.2%). Max pain ranged from $65.00 to $75.00. Net GEX was positive for 23 of 23 trading days. Term structure was in contango for 2 of 23 days. Put/call ratio averaged 0.36.
Notable Days 2025-10-29 : Highest Volume — 171 contracts2025-10-30 : Largest IV spike — 178.2% change2025-10-14 : Highest IV Rank — 68.8%2025-10-03 : Largest Expected Move — 12.3%Monthly Statistics Metric Avg Min Max Open Close Price $66.97 $63.17 $78.77 $65.09 $78.28 Max Pain $65.91 $65.00 $75.00 $65.00 $75.00 ATM IV 40.4% 6.3% 92.5% 40.1% 17.3% Expected Move 8.7% 1.8% 12.3% 11.5% 4.9% HV 20d 23.2% 16.1% 50.6% 20.9% 50.4% HV 60d 23.8% 20.7% 34.6% 22.9% 34.5% IV Rank 22.9% 0.0% 68.8% 21.4% 9.1% IV Percentile 39.1% 0.0% 98.8% 37.7% 0.8% Term Structure -5.1% -16.5% 15.9% -8.3% 15.9% VWIV 18.7% 5.8% 31.9% 28.2% 8.3% Skew 25d 10.8% -36.0% 30.6% 30.6% 1.3% Skew 10d 9.8% -53.6% 47.6% 19.6% -0.8% Call IV 25d 28.1% 6.3% 63.1% 30.5% 10.3% Put IV 25d 38.9% 6.4% 65.2% 61.0% 11.6% Bid-Ask Spread % 111.39 53.99 123.89 112.50 55.69 Gamma HHI 0.71 0.51 0.78 0.68 0.51 Net GEX 14.5K 2.1K 71.6K 11.2K 71.6K Net DEX -221.9K -925.3K -105.2K -140.6K -925.3K Net VEX -869 -2.9K -31 -738 -2.9K Div Yield 0.0% 0.0% 0.0% 0.0% 0.0% P/C Ratio 0.36 0.00 1.20 0.00 1.20 Total Volume 14.739 0 171 5 11 Total OI 97.478 70 325 70 325
Daily Data (23 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 2025-10-01 $65.09 $65.00 40.1% 11.5% 20.9% 21.4% 0.0% 30.6% -8.3% 11.2K -140.6K -738 0.00 112.50 N/A N/A 5 0 66 4 2025-10-02 $64.21 $65.00 41.5% 11.9% 21.1% 22.7% 0.0% 2.1% -14.6% 11.8K -152.1K -811 0.00 117.44 N/A N/A 0 0 71 4 2025-10-03 $64.77 $65.00 42.9% 12.3% 21.2% 24.0% 0.0% -36.0% -16.5% 11.6K -137.0K -761 0.00 110.03 N/A N/A 0 0 71 4 2025-10-06 $63.80 $0.00 48.5% 8.5% 21.5% 29.1% 28.2% 4.6% -6.1% 10.8K -134.2K -736 0.00 120.81 N/A N/A 0 4 71 4 2025-10-07 $63.74 $65.00 48.5% 7.9% 21.5% 29.0% 0.0% 0.5% -3.9% 9.7K -119.6K -760 0.00 121.74 N/A N/A 0 0 71 8 2025-10-08 $64.53 $65.00 54.8% 8.0% 19.7% 34.7% 0.0% 0.5% -8.3% 9.9K -159.3K -886 0.00 123.57 N/A N/A 0 0 71 8 2025-10-09 $64.78 $65.00 56.7% 8.2% 16.1% 36.5% 0.0% 14.0% -3.4% 10.1K -125.8K -792 0.00 123.89 N/A N/A 0 0 71 8 2025-10-10 $63.17 $65.00 60.6% 8.6% 18.1% 40.0% 0.0% 13.3% -5.6% 9.2K -105.2K -702 0.00 120.61 N/A N/A 0 0 71 8 2025-10-13 $63.72 $65.00 73.7% 8.5% 18.4% 51.9% 0.0% 2.1% -6.7% 9.3K -105.7K -707 0.00 121.34 N/A N/A 0 0 71 8 2025-10-14 $64.94 $65.00 92.5% 8.8% 19.7% 68.8% 0.0% 24.4% -9.1% 9.9K -131.0K -750 0.00 123.74 N/A N/A 0 0 71 8 2025-10-15 $64.74 $65.00 32.2% 9.2% 19.1% 14.3% 28.5% 8.5% -8.8% 9.9K -119.9K -711 0.50 112.50 N/A N/A 4 2 71 8 2025-10-16 $64.38 $65.00 30.8% 8.8% 17.8% 13.0% 0.0% 10.0% -8.7% 10.2K -120.9K -768 0.00 123.06 N/A N/A 0 0 74 10 2025-10-17 $64.61 $65.00 32.3% 9.3% 17.6% 14.4% 0.0% 23.0% -8.6% 10.2K -120.6K -762 0.00 123.23 N/A N/A 0 0 74 10 2025-10-20 $65.50 $65.00 31.4% 9.0% 18.4% 13.6% 0.0% 24.5% -2.9% 11.0K -135.7K -776 0.00 121.95 N/A N/A 0 0 72 10 2025-10-21 $65.85 $65.00 33.5% 9.6% 18.4% 15.5% 0.0% 20.3% -5.7% 10.8K -142.9K -797 0.00 121.69 N/A N/A 5 0 72 10 2025-10-22 $66.34 $65.00 33.1% 9.5% 18.5% 15.1% 0.0% 21.4% -6.0% 12.0K -167.3K -858 0.00 121.03 N/A N/A 0 0 76 10 2025-10-23 $67.17 $65.00 35.1% 10.1% 18.6% 16.9% 0.0% 10.8% -6.6% 11.5K -200.5K -915 0.00 120.31 N/A N/A 0 0 76 10 2025-10-24 $67.47 $65.00 37.2% 10.7% 18.6% 18.8% 31.9% 19.9% -8.3% 14.9K -198.5K -890 0.00 115.91 N/A N/A 4 0 76 10 2025-10-27 $67.41 $65.00 38.3% 11.0% 18.4% 19.9% 0.0% 20.4% -4.8% 12.6K -203.7K -869 0.00 116.97 N/A N/A 0 0 74 10 2025-10-28 $68.74 $65.00 25.1% 7.2% 18.7% 7.9% 0.0% 29.6% 10.0% 13.8K -241.3K -885 0.00 122.03 N/A N/A 1 0 74 10 2025-10-29 $78.77 $65.00 6.3% 1.8% 50.6% 0.0% 5.8% 0.1% -0.8% 2.1K -577.1K -31 0.55 53.99 N/A N/A 110 61 74 10 2025-10-30 $78.29 $75.00 17.5% 5.0% 50.3% 9.3% 9.3% 1.3% -0.0% 40.1K -639.6K -1.2K 0.59 58.05 N/A N/A 83 49 173 54 2025-10-31 $78.28 $75.00 17.3% 4.9% 50.4% 9.1% 8.3% 1.3% 15.9% 71.6K -925.3K -2.9K 1.20 55.69 N/A N/A 5 6 242 83
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