ACMR Options History — July 2025

In July 2025, ACMR traded between $26.69 and $31.90. ATM implied volatility averaged 66.0%, placing in the 20.4% IV rank vs the trailing year. The 30-day expected move averaged 19.3%. IV traded above realized volatility by 29.0% (HV 20d: 37.0%). Max pain ranged from $23.00 to $25.00. Net GEX was positive for 22 of 22 trading days. Term structure was in contango for 2 of 22 days. Put/call ratio averaged 0.53.

Notable Days

  • 2025-07-28: Highest Volume — 3,425 contracts
  • 2025-07-09: Largest IV spike — 15.1% change
  • 2025-07-31: Highest IV Rank — 39.8%
  • 2025-07-31: Largest Expected Move — 23.1%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$29.54$26.69$31.90$26.69$30.37
Max Pain$23.82$23.00$25.00$25.00$25.00
ATM IV66.0%52.7%80.6%53.9%80.6%
Expected Move19.3%15.3%23.1%15.5%23.1%
HV 20d37.0%29.0%43.0%41.9%36.8%
HV 60d60.2%49.3%73.5%73.5%50.6%
IV Rank20.4%2.9%39.8%4.5%39.8%
IV Percentile49.7%2.4%78.6%6.0%78.6%
Term Structure-6.2%-19.7%11.6%11.3%-19.7%
VWIV67.6%53.9%80.2%53.9%80.2%
Skew 25d2.6%1.4%4.6%1.4%2.5%
Skew 10d9.4%1.0%38.4%6.8%4.9%
Call IV 25d66.4%53.7%78.1%53.7%78.1%
Put IV 25d69.0%55.0%80.6%55.0%80.6%
Bid-Ask Spread %52.7643.9463.4753.5563.47
Gamma HHI0.110.080.270.100.08
Net GEX420.2K196.7K795.4K196.7K438.4K
Net DEX-30.4M-41.7M-16.8M-16.8M-33.7M
Net VEX-210.3K-216.1K-202.1K-214.0K-203.9K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.530.161.490.180.20
Total Volume1,019.2272853,4259052,279
Total OI51,079.63648,41153,42448,41153,424

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-07-01$26.69$25.0053.9%15.5%41.9%4.5%53.9%1.4%11.3%196.7K-16.8M-214.0K0.1853.55N/AN/A76613922,65325,758
2025-07-02$27.56$25.0053.4%15.3%42.7%3.8%54.1%1.7%11.6%286.0K-21.7M-215.8K1.4547.94N/AN/A68298623,11425,779
2025-07-03$27.55$23.0052.7%18.3%42.7%2.9%65.6%3.4%-0.4%270.9K-21.0M-214.5K0.3650.33N/AN/A2097623,28126,384
2025-07-07$28.14$23.0056.3%19.3%42.7%7.6%67.8%4.6%-3.3%313.2K-23.4M-211.6K0.2443.94N/AN/A77518923,30126,385
2025-07-08$28.43$23.0056.7%19.1%40.7%8.1%66.2%3.9%-3.8%358.4K-25.4M-210.6K0.2550.14N/AN/A1,78644023,86626,428
2025-07-09$29.20$23.0065.2%18.7%41.3%19.4%65.1%4.1%-3.8%409.9K-29.4M-216.1K0.4450.17N/AN/A30313324,51826,534
2025-07-10$29.47$23.0065.0%18.6%41.1%19.1%64.7%3.5%-2.4%426.4K-30.8M-214.8K1.1051.36N/AN/A19421424,53926,502
2025-07-11$28.66$23.0066.3%19.0%43.0%20.9%65.6%2.7%-5.3%415.8K-26.6M-211.7K1.4950.49N/AN/A13119524,56826,564
2025-07-14$28.94$23.0065.8%18.9%43.0%20.2%66.0%3.2%-4.7%437.1K-28.0M-212.1K0.3049.22N/AN/A83825424,62326,669
2025-07-15$29.71$23.0066.3%19.0%37.2%20.8%66.7%2.5%-3.4%459.0K-32.9M-210.9K0.1652.22N/AN/A1,73028424,71926,788
2025-07-16$29.80$23.0067.3%19.3%35.8%22.2%67.7%3.6%-4.8%521.8K-33.3M-213.4K0.7750.65N/AN/A41531925,57026,794
2025-07-17$30.15$24.0066.9%19.2%35.4%21.6%67.1%2.7%-7.4%570.5K-35.2M-210.9K0.1749.90N/AN/A5529525,47326,965
2025-07-18$30.20$24.0066.3%19.0%35.4%20.8%66.6%2.2%-7.7%795.4K-35.2M-210.7K0.2249.70N/AN/A76316525,62226,993
2025-07-21$30.42$24.0067.1%19.2%33.7%21.9%67.1%2.0%-8.6%388.3K-32.4M-210.0K0.5648.20N/AN/A59633224,01225,907
2025-07-22$29.82$24.0068.6%19.7%34.8%24.0%69.5%1.7%-10.6%381.8K-30.1M-207.4K1.1054.37N/AN/A15717224,30826,087
2025-07-23$30.02$24.0068.7%19.7%29.0%24.0%69.7%2.2%-9.1%375.4K-31.4M-204.4K0.8554.85N/AN/A18315524,34026,168
2025-07-24$29.71$24.0069.2%19.8%29.7%24.7%68.7%2.1%-10.3%375.9K-29.1M-206.4K0.3457.41N/AN/A2759324,39726,234
2025-07-25$29.78$24.0068.7%19.7%29.6%24.0%69.6%2.3%-10.8%371.4K-29.2M-208.2K0.1652.94N/AN/A5719424,49626,262
2025-07-28$31.84$24.0074.3%21.3%32.3%31.5%74.7%2.0%-12.1%485.0K-41.0M-202.1K0.4453.19N/AN/A2,3761,04924,94526,314
2025-07-29$31.63$25.0076.1%21.8%32.9%33.8%73.0%2.1%-15.9%475.9K-40.9M-207.1K0.3263.35N/AN/A71923026,07327,064
2025-07-30$31.90$25.0076.0%21.8%32.0%33.7%76.8%1.6%-15.9%491.3K-41.7M-210.6K0.5763.30N/AN/A32418526,18327,148
2025-07-31$30.37$25.0080.6%23.1%36.8%39.8%80.2%2.5%-19.7%438.4K-33.7M-203.9K0.2063.47N/AN/A1,90037926,24627,178