CIGI Options History — August 2025

In August 2025, CIGI traded between $150.12 and $169.07. ATM implied volatility averaged 21.5%, placing in the 14.5% IV rank vs the trailing year. The 30-day expected move averaged 5.0%. IV traded below realized volatility by 8.5% (HV 20d: 30.0%). Max pain ranged from $135.00 to $150.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 16 of 21 days. Put/call ratio averaged 0.37.

Notable Days

  • 2025-08-22: Highest Volume — 139 contracts
  • 2025-08-13: Largest IV drop — 50.5% change
  • 2025-08-12: Highest IV Rank — 56.6%
  • 2025-08-01: Largest Expected Move — 6.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$161.15$150.12$169.07$150.12$165.68
Max Pain$149.29$135.00$150.00$135.00$150.00
ATM IV21.5%13.3%41.8%22.0%16.5%
Expected Move5.0%3.8%6.3%6.3%4.7%
HV 20d30.0%20.2%33.1%33.1%20.2%
HV 60d27.0%25.1%29.2%29.2%25.5%
IV Rank14.5%0.0%56.6%13.8%6.5%
IV Percentile21.2%0.0%85.7%20.2%3.2%
Term Structure2.5%-1.1%7.7%0.5%-0.3%
VWIV19.7%12.5%26.8%23.9%17.2%
Skew 25d1.2%-7.4%9.1%-0.4%7.7%
Skew 10d3.4%-6.9%55.5%1.7%55.5%
Call IV 25d19.5%14.6%28.7%28.7%16.3%
Put IV 25d20.7%15.2%28.2%28.2%24.0%
Bid-Ask Spread %104.3087.48110.67110.67109.95
Gamma HHI0.650.400.940.940.40
Net GEX295.6K237.0K410.5K240.1K410.1K
Net DEX-7.3M-9.6M-4.9M-4.9M-8.5M
Net VEX-15.2K-17.1K-12.7K-17.1K-15.3K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.370.002.500.110.17
Total Volume16.8570139217
Total OI751.667677827687827

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-08-01$150.12$135.0022.0%6.3%33.1%13.8%0.0%-0.4%0.5%240.1K-4.9M-17.1K0.11110.67N/AN/A192551136
2025-08-04$152.24$150.0023.6%5.7%31.4%17.4%23.9%-1.7%4.3%254.1K-5.3M-17.0K0.00105.00N/AN/A200566138
2025-08-05$155.93$150.0025.1%5.6%31.9%20.5%26.2%-2.7%5.1%240.7K-6.0M-16.9K0.00101.61N/AN/A240585138
2025-08-06$156.31$150.0023.9%5.4%31.9%17.9%17.7%-6.9%4.5%252.0K-6.1M-16.4K0.25102.02N/AN/A41608138
2025-08-07$155.78$150.0030.4%5.1%31.7%32.0%23.0%-7.4%7.6%261.5K-6.2M-16.0K0.40102.81N/AN/A52610139
2025-08-08$156.69$150.0031.7%6.1%31.3%34.9%20.8%-0.3%4.3%247.5K-6.4M-15.6K0.18101.40N/AN/A112614141
2025-08-11$155.18$150.0041.1%6.1%31.9%55.1%17.1%-1.9%2.6%262.2K-5.9M-16.7K0.25101.45N/AN/A41623142
2025-08-12$158.64$150.0041.8%4.5%31.2%56.6%21.5%1.4%7.7%263.4K-6.6M-15.6K0.14102.33N/AN/A71627142
2025-08-13$162.02$150.0020.7%5.9%31.1%11.0%22.7%0.8%5.2%237.0K-7.2M-15.2K1.00102.00N/AN/A22630143
2025-08-14$161.24$150.0018.6%5.3%31.2%6.6%21.3%1.5%1.9%245.9K-7.3M-14.6K1.2594.26N/AN/A45629145
2025-08-15$162.54$150.0014.9%4.3%30.8%0.0%26.8%0.1%-1.1%239.6K-7.5M-13.9K0.00108.54N/AN/A630633150
2025-08-18$163.68$150.0016.2%4.6%30.8%2.8%16.5%1.1%0.6%270.5K-7.4M-14.1K0.0887.48N/AN/A13166512
2025-08-19$164.44$150.0015.6%4.5%30.8%1.5%0.0%0.4%0.5%284.1K-7.6M-14.3K0.00109.70N/AN/A0067813
2025-08-20$163.92$150.0014.8%4.3%30.7%0.0%0.0%3.9%-0.1%290.6K-7.7M-14.0K0.00108.45N/AN/A0067813
2025-08-21$161.90$150.0017.4%5.0%31.5%5.4%0.0%5.7%2.8%294.4K-7.3M-14.6K0.00110.44N/AN/A0067813
2025-08-22$167.63$150.0013.3%3.8%33.0%0.0%14.6%3.0%3.1%288.9K-8.6M-12.7K0.01107.28N/AN/A137267813
2025-08-25$169.07$150.0017.6%5.0%31.3%8.9%17.8%-0.1%-0.4%400.5K-9.6M-14.1K2.50103.25N/AN/A2580015
2025-08-26$167.73$150.0014.2%4.1%26.5%2.0%15.8%9.1%-1.0%410.5K-9.4M-15.2K0.00102.73N/AN/A7080220
2025-08-27$167.13$150.0015.9%4.6%25.8%5.4%0.0%5.4%3.7%405.5K-9.1M-14.7K0.00109.07N/AN/A0080620
2025-08-28$166.22$150.0016.5%4.7%21.8%6.6%12.5%7.1%1.4%407.8K-8.9M-15.5K0.00109.91N/AN/A1080620
2025-08-29$165.68$150.0016.5%4.7%20.2%6.5%17.2%7.7%-0.3%410.1K-8.5M-15.3K0.17109.95N/AN/A6180720