GEN Options History — December 2025

In December 2025, GEN traded between $26.21 and $27.83. ATM implied volatility averaged 23.6%, placing in the 13.4% IV rank vs the trailing year. The 30-day expected move averaged 6.7%. IV traded above realized volatility by 3.2% (HV 20d: 20.4%). Max pain ranged from $27.00 to $29.00. Net GEX was positive for 12 of 22 trading days. Term structure was in contango for 19 of 22 days. Put/call ratio averaged 0.44.

Notable Days

  • 2025-12-18: Highest Volume — 3,171 contracts
  • 2025-12-26: Largest IV spike — 22.6% change
  • 2025-12-01: Highest IV Rank — 19.2%
  • 2025-12-01: Largest Expected Move — 7.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$27.34$26.21$27.83$26.21$27.31
Max Pain$28.36$27.00$29.00$27.00$28.00
ATM IV23.6%20.3%26.6%26.6%22.7%
Expected Move6.7%5.8%7.6%7.6%6.5%
HV 20d20.4%16.5%24.5%22.2%16.9%
HV 60d20.3%19.5%20.7%19.7%20.1%
IV Rank13.4%6.9%19.2%19.2%11.6%
IV Percentile27.6%0.4%57.5%57.5%17.5%
Term Structure4.9%-2.3%9.4%-2.3%8.6%
VWIV23.9%20.9%29.9%29.9%20.9%
Skew 25d2.8%1.1%7.3%7.3%3.3%
Skew 10d8.3%1.1%19.5%15.3%3.7%
Call IV 25d23.1%19.3%26.1%24.6%21.7%
Put IV 25d25.9%20.4%31.9%31.9%25.0%
Bid-Ask Spread %94.9685.99103.8696.9197.00
Gamma HHI0.200.170.240.200.24
Net GEX-4.3K-315.6K209.7K-315.6K161.8K
Net DEX1.7M-1.9M8.8M8.8M1.5M
Net VEX-31.1K-40.0K-22.9K-33.4K-22.9K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.440.012.760.260.28
Total Volume416.318613,17115791
Total OI22,89215,02828,26225,29915,615

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-12-01$26.21$27.0026.6%7.6%22.2%19.2%29.9%7.3%-2.3%-315.6K8.8M-33.4K0.2696.91N/AN/A1253214,87910,420
2025-12-02$26.33$27.0025.7%7.4%22.2%17.5%27.3%3.9%-1.1%-309.1K8.2M-33.4K1.4698.31N/AN/A11216414,93210,444
2025-12-03$27.18$27.0025.8%7.4%24.3%17.6%25.7%1.5%-0.2%-181.6K3.9M-40.0K0.2899.10N/AN/A1674714,97510,572
2025-12-04$26.93$29.0025.8%7.1%24.5%17.5%25.1%2.9%4.1%-219.5K4.9M-38.6K0.1192.29N/AN/A1521615,04010,581
2025-12-05$27.09$29.0024.1%7.2%24.1%14.3%23.5%4.1%2.6%-178.2K3.6M-39.4K0.1294.90N/AN/A1902215,05010,588
2025-12-08$26.84$29.0025.1%6.7%24.4%16.4%23.3%1.5%4.6%-265.9K5.2M-31.7K0.0290.44N/AN/A198415,21110,596
2025-12-09$27.19$29.0025.9%7.1%23.3%17.8%23.8%3.8%2.4%-165.2K3.3M-35.4K0.1992.54N/AN/A1733315,33410,616
2025-12-10$27.56$29.0024.0%6.9%22.0%14.2%25.2%2.0%4.9%-119.6K1.5M-35.2K0.01103.86N/AN/A1,180915,43410,625
2025-12-11$27.73$29.0023.4%6.7%22.1%13.1%23.6%1.6%3.3%69.6K-1.2M-33.9K0.1890.59N/AN/A4227516,21610,620
2025-12-12$27.57$29.0022.5%6.5%21.4%11.2%24.4%2.1%5.4%81.5K54.1K-33.3K0.3891.53N/AN/A2569816,22510,658
2025-12-15$27.52$29.0023.1%6.6%21.4%12.3%26.8%3.7%3.9%60.1K563.0K-29.2K0.2793.35N/AN/A952616,31310,713
2025-12-16$27.39$29.0023.5%6.7%19.2%13.3%23.1%1.4%5.5%104.3K1.1M-28.4K0.4592.52N/AN/A1195416,39110,692
2025-12-17$27.83$29.0023.4%6.7%19.6%13.0%23.4%1.5%4.8%-5.1K-1.9M-27.9K0.0594.19N/AN/A147816,38110,711
2025-12-18$27.74$29.0022.5%6.5%19.0%11.3%22.5%1.8%6.8%-15.2K-1.1M-27.2K0.0196.08N/AN/A3,1294216,50410,710
2025-12-19$27.64$28.0022.0%6.3%19.1%10.2%23.7%4.3%6.6%122.0K-497.0K-29.7K0.2499.91N/AN/A59814217,55410,708
2025-12-22$27.69$28.0020.3%5.8%18.4%6.9%22.0%3.1%8.7%178.7K-580.1K-28.7K0.0685.99N/AN/A526329,2225,806
2025-12-23$27.41$28.0022.2%6.4%18.5%10.7%21.7%3.4%9.4%159.1K360.6K-28.6K2.0594.11N/AN/A631299,4765,802
2025-12-24$27.52$28.0020.6%5.9%17.6%7.5%21.1%2.6%8.5%173.4K333.2K-28.1K0.0993.72N/AN/A5659,5455,933
2025-12-26$27.72$28.0025.2%7.2%16.5%16.6%23.9%1.1%4.6%172.8K-194.5K-28.4K0.4497.76N/AN/A124549,5385,932
2025-12-29$27.68$28.0022.8%6.5%16.5%11.9%22.7%2.8%7.8%209.7K-497.1K-26.1K2.76100.00N/AN/A25699,5595,937
2025-12-30$27.45$28.0022.5%6.4%16.7%11.2%21.1%1.9%8.1%188.0K738.1K-24.2K0.0393.99N/AN/A14649,5755,991
2025-12-31$27.31$28.0022.7%6.5%16.9%11.6%20.9%3.3%8.6%161.8K1.5M-22.9K0.2897.00N/AN/A71209,6245,991