ACMR Options History — November 2025

In November 2025, ACMR traded between $29.60 and $41.27. ATM implied volatility averaged 72.6%, placing in the 30.2% IV rank vs the trailing year. The 30-day expected move averaged 20.7%. IV traded below realized volatility by 19.2% (HV 20d: 91.8%). Max pain ranged from $30.00 to $36.00. Net GEX was positive for 19 of 19 trading days. Term structure was in contango for 5 of 19 days. Put/call ratio averaged 0.36.

Notable Days

  • 2025-11-05: Highest Volume — 9,404 contracts
  • 2025-11-05: Largest IV drop — 19.2% change
  • 2025-11-04: Highest IV Rank — 55.1%
  • 2025-11-04: Largest Expected Move — 26.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$32.74$29.60$41.27$41.27$33.26
Max Pain$33.53$30.00$36.00$30.00$33.00
ATM IV72.6%65.4%91.7%90.4%65.4%
Expected Move20.7%18.8%26.3%25.9%18.8%
HV 20d91.8%65.5%100.9%65.5%94.2%
HV 60d80.8%71.3%87.5%71.3%77.8%
IV Rank30.2%20.9%55.1%53.5%20.9%
IV Percentile69.3%50.8%93.7%90.9%50.8%
Term Structure-2.0%-15.8%5.7%-15.8%2.0%
VWIV73.5%64.9%91.4%91.4%64.9%
Skew 25d2.7%-1.8%8.3%5.4%1.5%
Skew 10d0.7%-10.7%20.9%-9.4%4.0%
Call IV 25d72.9%65.4%89.0%87.2%66.7%
Put IV 25d75.6%66.4%94.8%92.6%68.2%
Bid-Ask Spread %50.5236.3369.2566.0166.75
Gamma HHI0.080.070.180.100.08
Net GEX700.5K410.4K1.1M1.1M678.1K
Net DEX-38.5M-102.2M-19.0M-102.2M-37.0M
Net VEX-259.8K-300.6K-227.6K-297.2K-246.1K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.360.021.370.280.37
Total Volume2,183.5792109,404679210
Total OI72,365.31655,14781,61771,92056,971

Daily Data (19 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-11-03$41.27$30.0090.4%25.9%65.5%53.5%91.4%5.4%-15.8%1.1M-102.2M-297.2K0.2866.01N/AN/A53014940,77831,142
2025-11-04$38.57$30.0091.7%26.3%69.0%55.1%91.1%5.8%-13.5%972.6K-82.4M-300.6K0.1365.65N/AN/A4,79163041,02931,175
2025-11-05$31.16$30.0074.1%21.2%100.8%32.2%77.1%6.1%-3.6%539.9K-30.2M-268.3K0.1264.44N/AN/A8,3821,02243,49931,680
2025-11-06$31.13$36.0067.2%20.0%100.9%23.2%67.9%4.3%1.1%663.0K-31.2M-271.0K0.2539.64N/AN/A98225043,98732,101
2025-11-07$30.93$35.0070.9%20.1%93.1%27.9%71.3%0.8%-1.7%578.2K-26.2M-266.6K0.6737.36N/AN/A90961144,10332,049
2025-11-10$33.02$35.0076.4%20.8%94.1%35.2%72.7%-0.7%-0.8%872.4K-43.4M-283.6K0.4738.91N/AN/A3,3341,57944,18332,268
2025-11-11$32.54$33.0075.8%20.7%94.2%34.4%76.1%2.8%-0.6%786.4K-37.4M-276.5K0.5237.91N/AN/A43222644,47332,527
2025-11-12$33.81$34.0068.8%19.7%95.1%25.2%68.1%-1.8%-0.4%1.0M-47.1M-276.8K0.4640.04N/AN/A60227644,60332,553
2025-11-13$32.88$34.0070.9%20.3%95.2%28.0%73.1%1.0%-0.5%873.7K-39.8M-272.3K0.3939.96N/AN/A63024544,68432,688
2025-11-14$31.36$34.0066.1%19.0%95.8%21.8%70.9%2.0%5.7%624.4K-30.0M-253.0K0.4545.24N/AN/A55224944,57732,686
2025-11-17$31.37$34.0071.5%20.5%93.7%28.8%76.2%0.1%-2.0%614.9K-29.3M-244.8K1.3743.25N/AN/A29640644,58432,776
2025-11-18$30.95$35.0072.6%20.8%93.4%30.2%74.0%2.8%-0.2%566.5K-26.5M-241.8K0.1744.31N/AN/A1,09919144,67032,891
2025-11-19$31.51$35.0073.3%21.0%93.9%31.1%73.8%3.2%0.0%567.5K-28.2M-241.5K0.1136.33N/AN/A1,42015844,87332,944
2025-11-20$29.60$35.0072.4%20.7%91.6%29.9%74.1%-1.8%-1.4%410.4K-19.0M-232.2K0.0252.62N/AN/A6,56715546,04533,011
2025-11-21$30.23$34.0071.2%20.4%90.3%28.4%71.3%-1.4%-7.0%744.8K-20.8M-227.6K0.3469.25N/AN/A1,44849949,23032,387
2025-11-24$32.20$34.0065.8%18.9%94.4%21.3%68.8%8.3%2.6%476.5K-27.2M-238.4K0.1863.70N/AN/A90916232,51522,632
2025-11-25$33.11$33.0067.8%19.4%95.1%24.0%67.1%6.9%-0.9%589.0K-35.0M-248.8K0.2157.47N/AN/A99121033,21822,692
2025-11-26$33.19$33.0066.9%19.2%94.2%22.8%66.7%5.1%-0.2%660.6K-38.2M-248.5K0.2351.04N/AN/A3137334,00422,713
2025-11-28$33.26$33.0065.4%18.8%94.2%20.9%64.9%1.5%2.0%678.1K-37.0M-246.1K0.3766.75N/AN/A1535734,21422,757