GPK Options History — December 2025

In December 2025, GPK traded between $14.25 and $16.41. ATM implied volatility averaged 33.8%, placing in the 21.1% IV rank vs the trailing year. The 30-day expected move averaged 9.5%. IV traded below realized volatility by 6.6% (HV 20d: 40.4%). Max pain ranged from $2.50 to $20.00. Net GEX was positive for 13 of 22 trading days. Term structure was in contango for 18 of 22 days. Put/call ratio averaged 1.45.

Notable Days

  • 2025-12-03: Highest Volume — 1,598 contracts
  • 2025-12-22: Largest IV drop — 17.5% change
  • 2025-12-03: Highest IV Rank — 28.9%
  • 2025-12-03: Largest Expected Move — 11.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$15.45$14.25$16.41$16.34$15.04
Max Pain$14.89$2.50$20.00$20.00$15.00
ATM IV33.8%28.5%40.3%35.0%28.7%
Expected Move9.5%8.1%11.6%10.0%8.2%
HV 20d40.4%25.8%46.0%40.1%42.3%
HV 60d36.0%31.0%38.2%31.3%37.8%
IV Rank21.1%14.8%28.9%22.6%15.0%
IV Percentile64.0%31.3%90.9%74.2%31.3%
Term Structure3.5%-4.9%29.6%-0.1%5.3%
VWIV53.4%25.7%429.8%35.4%28.7%
Skew 25d9.5%-8.0%86.4%4.4%-8.0%
Skew 10d24.4%-13.0%207.9%8.2%-11.4%
Call IV 25d34.4%26.5%40.3%35.3%39.7%
Put IV 25d43.9%29.3%121.7%39.7%31.7%
Bid-Ask Spread %97.9369.14108.1169.14100.18
Gamma HHI0.400.340.520.380.39
Net GEX22.6K-66.8K156.6K9.8K70.7K
Net DEX-1.8M-3.3M416.2K-1.9M-2.0M
Net VEX-18.0K-21.6K-13.6K-14.6K-20.1K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.450.0022.000.210.35
Total Volume283.18201,5985874
Total OI10,199.9098,27312,4428,27310,138

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2025-12-01$16.34$20.0035.0%10.0%40.1%22.6%35.4%4.4%-0.1%9.8K-1.9M-14.6K0.2169.1448106,4901,783
2025-12-02$16.41$20.0034.7%9.9%39.5%22.2%38.0%6.4%-2.8%17.6K-1.9M-14.8K0.0670.841616,5481,783
2025-12-03$16.21$20.0040.3%11.6%27.7%28.9%36.9%4.5%-3.8%9.0K-1.7M-14.6K0.00108.111,59446,5361,784
2025-12-04$15.80$15.0039.2%10.1%28.4%27.6%33.8%0.8%2.7%21.4K-1.8M-18.0K0.9197.0522207,9291,785
2025-12-05$15.95$15.0032.7%10.1%25.8%19.8%0.0%5.2%1.8%20.2K-1.9M-17.6K22.00106.763667,9481,804
2025-12-08$15.64$15.0037.9%8.1%26.4%26.1%429.8%48.3%8.5%-19.6K-1.5M-16.8K1.39100.9233467,9491,870
2025-12-09$14.25$2.5033.5%9.7%41.5%20.8%38.2%-1.2%4.1%-17.2K416.2K-13.6K0.7497.433452557,9711,910
2025-12-10$14.95$15.0034.2%9.8%45.4%21.6%34.3%6.4%3.6%-54.9K-429.5K-15.6K0.11105.65112128,1602,116
2025-12-11$15.39$12.5034.8%10.0%46.0%22.3%34.4%-0.1%1.6%-66.8K-1.3M-16.9K0.03107.851,273438,2462,115
2025-12-12$15.52$12.5035.9%10.3%45.5%23.6%35.9%-4.2%1.9%-29.2K-1.9M-17.9K0.7791.8577599,4162,122
2025-12-15$15.36$15.0035.2%10.1%45.6%22.8%35.6%-2.3%2.1%-15.9K-1.8M-18.6K1.5294.2964979,4162,170
2025-12-16$15.36$15.0034.7%10.0%44.4%22.3%34.9%-1.1%1.9%-43.7K-1.9M-18.2K0.1497.4999149,4532,188
2025-12-17$15.48$15.0035.0%10.0%44.5%22.6%35.0%1.8%2.3%-9.9K-2.4M-17.6K0.1898.603369,5242,180
2025-12-18$15.45$15.0030.6%8.8%44.2%17.3%30.6%86.4%29.6%-32.4K-2.1M-17.3K0.0096.0096229,5182,185
2025-12-19$15.51$15.0034.5%9.9%44.1%22.0%34.8%5.8%0.8%156.6K-3.3M-20.3K0.01107.23209310,2712,171
2025-12-22$15.38$15.0028.5%8.2%43.4%14.8%32.7%-2.1%-4.9%76.1K-2.4M-21.6K0.11101.4397117,9191,733
2025-12-23$15.11$15.0032.2%9.2%43.6%19.2%31.7%19.0%2.9%83.0K-2.1M-20.8K0.8898.3550448,0011,754
2025-12-24$15.09$15.0031.3%9.0%42.5%18.2%0.0%2.1%4.9%78.6K-2.0M-20.0K0.00104.33007,9971,795
2025-12-26$15.16$15.0032.4%9.3%42.6%19.4%32.5%15.8%4.1%83.8K-2.1M-20.8K0.58105.0319117,9971,795
2025-12-29$15.25$15.0032.8%9.4%42.6%19.9%25.7%19.7%3.0%83.1K-2.1M-20.0K0.0094.4135417,9991,795
2025-12-30$15.18$15.0029.3%8.4%42.4%15.7%29.3%1.4%7.0%77.5K-2.1M-20.6K0.52101.5227148,3401,794
2025-12-31$15.04$15.0028.7%8.2%42.3%15.0%28.7%-8.0%5.3%70.7K-2.0M-20.1K0.35100.1855198,3451,793