AMRN Options History — October 2025

In October 2025, AMRN traded between $16.21 and $20.21. ATM implied volatility averaged 88.7%, placing in the 18.6% IV rank vs the trailing year. The 30-day expected move averaged 26.6%. IV traded above realized volatility by 39.5% (HV 20d: 49.2%). Max pain ranged from $15.00 to $17.00. Net GEX was positive for 23 of 23 trading days. Term structure was in contango for 5 of 23 days. Put/call ratio averaged 0.28.

Notable Days

  • 2025-10-10: Highest Volume — 640 contracts
  • 2025-10-13: Largest IV spike — 32.5% change
  • 2025-10-22: Highest IV Rank — 28.1%
  • 2025-10-22: Largest Expected Move — 32.7%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$18.81$16.21$20.21$16.67$16.21
Max Pain$16.17$15.00$17.00$15.00$17.00
ATM IV88.7%65.5%114.0%69.7%93.9%
Expected Move26.6%19.9%32.7%20.0%26.9%
HV 20d49.2%27.2%72.0%27.5%60.3%
HV 60d38.4%29.9%46.9%30.3%46.9%
IV Rank18.6%9.9%28.1%11.5%20.6%
IV Percentile54.1%10.3%86.1%15.5%64.7%
Term Structure-8.8%-48.4%17.8%15.7%-24.5%
VWIV87.6%62.2%116.8%69.9%66.1%
Skew 25d2.1%-32.5%45.1%21.0%6.1%
Skew 10d21.3%-37.1%100.1%28.4%28.4%
Call IV 25d87.3%48.8%123.1%50.1%75.9%
Put IV 25d89.5%54.9%124.2%71.1%82.0%
Bid-Ask Spread %86.1459.78115.3978.62108.17
Gamma HHI0.180.130.350.140.18
Net GEX56.4K26.2K113.1K30.8K26.2K
Net DEX-2.9M-4.2M-1.1M-1.3M-1.1M
Net VEX-12.5K-13.7K-10.3K-10.8K-10.3K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.280.033.000.070.03
Total Volume262.878640260127
Total OI6,023.6095,0116,8165,0116,816

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2025-10-01$16.67$15.0069.7%20.0%27.5%11.5%69.9%21.0%15.7%30.8K-1.3M-10.8K0.0778.62243172,9782,033
2025-10-02$16.79$15.0069.3%19.9%27.2%11.4%62.2%7.9%17.8%42.4K-1.5M-11.0K3.0087.70263,2072,050
2025-10-03$18.63$15.0073.3%21.0%43.9%12.9%73.2%1.2%10.7%49.9K-2.7M-11.5K0.0573.05568313,2092,056
2025-10-06$19.17$15.0073.8%25.5%40.8%13.1%89.4%0.5%-6.2%59.7K-3.4M-12.0K0.1967.74418813,6062,085
2025-10-07$19.37$15.0077.1%25.4%40.7%14.3%90.6%0.6%-7.4%65.6K-3.6M-12.5K0.0959.78279263,8682,148
2025-10-08$19.38$16.0074.7%25.6%40.1%13.4%89.1%-1.1%-6.9%67.2K-3.7M-13.0K0.0559.90219114,0162,174
2025-10-09$19.07$16.0072.0%25.9%41.3%12.4%82.9%-2.9%-6.1%69.3K-3.6M-12.8K0.1763.615494,0862,185
2025-10-10$18.06$16.0065.5%25.6%47.5%9.9%88.5%1.5%-10.0%70.3K-2.9M-12.9K0.1570.74555854,0792,186
2025-10-13$19.23$16.0086.8%26.4%50.7%17.9%91.9%0.9%-7.5%63.5K-3.3M-12.9K0.0474.12249114,1982,251
2025-10-14$19.23$16.0097.6%29.1%50.8%22.0%109.3%27.3%-16.7%66.3K-3.3M-13.3K0.15100.33295444,2172,262
2025-10-15$19.91$16.00104.5%30.0%49.9%24.6%76.0%18.8%-26.1%64.2K-3.7M-13.4K0.03106.1513944,2352,296
2025-10-16$20.07$16.0086.9%24.9%50.0%17.9%90.8%21.8%1.8%79.2K-4.2M-13.2K0.3391.64262864,2972,300
2025-10-17$19.85$16.0094.7%27.2%50.4%20.9%93.2%-3.0%-3.6%113.1K-4.2M-13.3K0.0381.7814244,3902,257
2025-10-20$20.15$16.0092.5%26.5%50.4%20.0%93.5%2.8%-4.8%51.3K-3.2M-12.8K0.3863.6980303,5591,879
2025-10-21$20.03$17.0094.6%27.1%50.2%20.8%95.7%-2.6%-5.5%51.1K-3.1M-12.9K0.2071.964493,6001,910
2025-10-22$19.72$17.00114.0%32.7%51.0%28.1%95.9%-3.3%-13.6%48.3K-3.0M-13.7K0.4977.4243213,6681,916
2025-10-23$19.48$17.00100.8%28.9%51.6%23.2%84.9%-32.5%9.5%50.0K-3.1M-13.4K0.24114.4442103,6891,937
2025-10-24$20.21$17.0099.5%28.5%52.0%22.7%95.7%-2.0%-31.1%56.1K-3.2M-12.8K0.05106.41357183,7071,947
2025-10-27$19.34$17.0098.4%28.2%55.6%22.3%73.8%-29.7%-9.9%52.7K-3.3M-13.0K0.0497.89444203,9051,966
2025-10-28$18.88$17.0098.4%28.2%56.5%22.3%103.2%-8.4%-8.5%48.7K-2.5M-12.8K0.1496.45284394,1801,986
2025-10-29$16.80$17.00105.4%30.2%71.4%24.9%116.8%-20.8%-48.4%39.2K-1.6M-10.5K0.23115.394401004,4292,017
2025-10-30$16.38$17.0097.8%28.0%72.0%22.0%81.9%45.1%-20.4%31.1K-1.5M-11.8K0.31114.1275234,6772,086
2025-10-31$16.21$17.0093.9%26.9%60.3%20.6%66.1%6.1%-24.5%26.2K-1.1M-10.3K0.03108.1712344,7042,112