NBIX Options History — December 2025

In December 2025, NBIX traded between $141.14 and $155.49. ATM implied volatility averaged 29.2%, placing in the 14.8% IV rank vs the trailing year. The 30-day expected move averaged 8.3%. IV traded below realized volatility by 4.4% (HV 20d: 33.6%). Max pain ranged from $140.00 to $150.00. Net GEX was positive for 13 of 22 trading days. Term structure was in contango for 19 of 22 days. Put/call ratio averaged 1.28.

Notable Days

  • 2025-12-19: Highest Volume — 1,968 contracts
  • 2025-12-31: Largest IV drop — 17.1% change
  • 2025-12-03: Highest IV Rank — 21.5%
  • 2025-12-03: Largest Expected Move — 9.5%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$149.10$141.14$155.49$151.34$142.22
Max Pain$148.64$140.00$150.00$140.00$150.00
ATM IV29.2%25.8%33.1%31.7%27.4%
Expected Move8.3%7.4%9.5%9.1%7.8%
HV 20d33.6%27.7%42.2%42.0%28.2%
HV 60d35.7%35.0%37.1%35.4%35.7%
IV Rank14.8%9.1%21.5%19.2%11.7%
IV Percentile29.1%14.7%50.0%40.1%19.0%
Term Structure4.3%-3.3%9.4%-3.3%8.2%
VWIV29.0%25.4%36.6%35.9%27.9%
Skew 25d1.4%-7.0%7.8%2.4%3.1%
Skew 10d2.4%-6.7%20.0%20.0%3.1%
Call IV 25d28.2%23.9%33.3%33.3%26.6%
Put IV 25d29.6%25.8%35.7%35.7%29.7%
Bid-Ask Spread %96.1391.79103.2294.8597.27
Gamma HHI0.250.140.400.260.15
Net GEX231.0K-758.3K934.0K657.1K-758.3K
Net DEX-15.8M-40.4M11.0M-27.5M11.0M
Net VEX-181.5K-228.0K-131.5K-149.3K-213.7K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.280.007.250.380.11
Total Volume267.86411,96813772
Total OI9,472.9097,66511,1349,1598,439

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-12-01$151.34$140.0031.7%9.1%42.0%19.2%35.9%2.4%-3.3%657.1K-27.5M-149.3K0.3894.85N/AN/A99384,4084,751
2025-12-02$152.88$140.0030.5%8.8%41.9%17.1%32.6%2.6%-1.9%745.5K-30.1M-141.2K0.0895.17N/AN/A197164,4084,789
2025-12-03$151.53$140.0033.1%9.5%42.2%21.5%31.3%1.5%-2.7%738.1K-30.2M-144.3K0.0599.81N/AN/A206104,5264,802
2025-12-04$153.16$150.0027.7%7.8%33.0%12.3%0.0%2.9%4.7%843.9K-33.2M-140.2K0.0091.79N/AN/A2904,5904,806
2025-12-05$155.49$150.0027.3%7.8%33.4%11.5%25.7%3.7%4.7%934.0K-40.4M-131.5K1.7993.21N/AN/A2454384,6004,806
2025-12-08$154.60$150.0031.4%7.9%31.9%18.7%27.0%1.6%5.0%862.6K-39.1M-148.7K1.4393.66N/AN/A3034334,6665,237
2025-12-09$155.44$150.0032.9%8.3%31.8%21.1%30.1%3.2%4.9%702.3K-31.6M-179.3K0.3092.75N/AN/A46144,5095,655
2025-12-10$154.83$150.0029.3%8.4%31.1%15.0%28.6%-3.0%3.0%730.9K-30.7M-176.9K1.7296.99N/AN/A25434,5395,658
2025-12-11$154.07$150.0028.8%8.3%31.2%14.2%31.2%1.6%3.6%754.6K-30.7M-178.0K2.5793.58N/AN/A7184,5425,683
2025-12-12$151.55$150.0027.5%7.9%31.3%11.8%28.1%1.9%4.7%758.8K-26.4M-175.6K0.6793.31N/AN/A18124,5475,690
2025-12-15$153.75$150.0028.0%8.0%31.6%12.7%29.1%1.6%4.0%746.5K-28.8M-170.8K0.1694.90N/AN/A82134,5495,699
2025-12-16$149.30$150.0029.1%8.3%33.5%14.7%26.8%-7.0%3.1%499.6K-19.6M-172.4K3.5794.10N/AN/A301074,6275,709
2025-12-17$141.68$150.0029.7%8.5%35.5%15.7%27.7%-2.4%7.3%44.6K524.5K-177.3K0.5497.22N/AN/A6863694,6305,805
2025-12-18$141.68$150.0029.3%8.4%35.5%15.0%26.2%4.5%7.1%-16.4K-972.2K-188.4K0.2596.76N/AN/A73184,9336,149
2025-12-19$144.14$150.0027.3%7.8%36.0%11.5%26.8%0.9%4.6%-396.1K-6.6M-184.2K0.9598.90N/AN/A1,0099594,9776,157
2025-12-22$147.97$150.0025.8%7.4%35.5%9.1%26.2%2.9%4.3%-407.4K-249.7K-213.3K0.0993.38N/AN/A110102,7754,890
2025-12-23$147.55$150.0027.1%7.8%35.0%11.3%28.8%7.8%6.1%-359.2K-1.5M-223.7K0.1997.66N/AN/A2753,1545,188
2025-12-24$147.06$150.0028.2%8.1%34.8%13.2%25.4%-0.6%5.4%-351.0K213.2K-228.0K0.0099.94N/AN/A103,1785,188
2025-12-26$145.24$150.0028.4%8.1%27.7%13.5%29.9%2.1%6.5%-456.8K3.1M-223.5K0.5995.55N/AN/A29173,1775,188
2025-12-29$143.66$150.0028.3%8.1%27.9%13.3%36.6%-2.3%9.4%-533.0K5.1M-216.6K5.50103.22N/AN/A2113,1855,202
2025-12-30$141.14$150.0033.0%9.5%28.4%21.4%26.3%2.9%5.3%-659.3K10.2M-214.9K7.25100.93N/AN/A8583,1865,207
2025-12-31$142.22$150.0027.4%7.8%28.2%11.7%27.9%3.1%8.2%-758.3K11.0M-213.7K0.1197.27N/AN/A6573,1905,249