ATS Options History — September 2025

In September 2025, ATS traded between $25.73 and $28.36. ATM implied volatility averaged 42.8%, placing in the 18.0% IV rank vs the trailing year. The 30-day expected move averaged 11.5%. IV traded below realized volatility by 0.9% (HV 20d: 43.8%). Max pain ranged from $25.00 to $30.00. Net GEX was positive for 19 of 21 trading days. Term structure was in contango for 10 of 21 days. Put/call ratio averaged 0.05.

Notable Days

  • 2025-09-22: Highest Volume — 17 contracts
  • 2025-09-23: Largest IV spike — 117.4% change
  • 2025-09-05: Highest IV Rank — 43.5%
  • 2025-09-03: Largest Expected Move — 18.6%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$27.23$25.73$28.36$27.02$25.94
Max Pain$25.48$25.00$30.00$30.00$25.00
ATM IV42.8%25.9%79.1%39.9%29.0%
Expected Move11.5%7.4%18.6%11.4%8.3%
HV 20d43.8%38.3%49.4%43.8%49.1%
HV 60d41.9%38.1%45.1%38.1%40.8%
IV Rank18.0%6.1%43.5%16.0%7.1%
IV Percentile40.1%5.6%91.3%38.5%6.7%
Term Structure-5.5%-71.0%27.8%-3.8%-1.7%
VWIV37.2%28.1%47.7%28.1%47.7%
Skew 25d1.5%-17.4%21.2%-17.4%6.0%
Skew 10d1.0%-14.9%22.4%1.7%4.4%
Call IV 25d33.3%23.9%58.4%52.5%25.9%
Put IV 25d34.8%27.7%54.9%35.1%31.9%
Bid-Ask Spread %104.4696.05121.98110.41104.57
Gamma HHI0.490.350.710.400.43
Net GEX14.0K-3.1K28.7K15.2K-3.1K
Net DEX-186.5K-450.0K-56.5K-176.8K-56.5K
Net VEX-1.0K-1.8K-533-1.3K-533
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.050.000.330.000.00
Total Volume2.09501720
Total OI959.81943974943974

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-09-02$27.02$30.0039.9%11.4%43.8%16.0%0.0%-17.4%-3.8%15.2K-176.8K-1.3K0.00110.41N/AN/A20787156
2025-09-03$25.98$30.0065.0%18.6%44.8%33.6%0.0%-3.5%-71.0%11.9K-133.3K-1.0K0.00121.98N/AN/A100788156
2025-09-04$27.38$25.0043.5%12.1%48.8%18.5%0.0%3.2%-18.1%17.9K-223.5K-1.5K0.0098.93N/AN/A00798154
2025-09-05$26.81$25.0079.1%13.8%38.3%43.5%0.0%-5.4%-27.0%16.4K-219.9K-1.6K0.0099.58N/AN/A30798154
2025-09-08$27.58$25.0047.3%9.4%39.9%21.2%0.0%-6.0%-3.7%9.1K-120.2K-7290.00105.17N/AN/A00798154
2025-09-09$26.84$25.0046.2%9.6%40.6%20.4%28.1%6.9%6.6%14.3K-151.9K-9470.3398.35N/AN/A31798154
2025-09-10$27.72$25.0027.6%7.9%42.5%7.3%0.0%4.7%8.1%12.2K-167.6K-8080.0099.90N/AN/A00800155
2025-09-11$28.36$25.0046.7%13.4%43.1%20.7%0.0%5.4%0.7%24.0K-369.6K-1.8K0.00103.54N/AN/A00800155
2025-09-12$27.30$25.0031.0%8.9%44.5%9.7%0.0%9.4%10.1%14.4K-161.6K-8350.00104.69N/AN/A00800155
2025-09-15$26.78$25.0045.0%12.9%40.8%19.6%0.0%-11.8%-22.3%13.2K-167.1K-1.2K0.0096.05N/AN/A20800155
2025-09-16$27.94$25.0026.6%7.6%43.2%6.6%0.0%7.3%7.3%23.4K-211.1K-8930.0096.61N/AN/A00807155
2025-09-17$28.24$25.0035.1%10.1%43.3%12.6%0.0%-2.7%7.3%16.6K-179.5K-7460.00109.42N/AN/A00807155
2025-09-18$28.16$25.0033.0%9.5%43.1%11.1%0.0%-2.7%-0.8%16.0K-177.1K-7510.0099.28N/AN/A00807155
2025-09-19$27.91$25.0036.6%10.5%43.1%13.7%0.0%-3.6%-2.9%10.5K-143.2K-5380.00109.27N/AN/A10807154
2025-09-22$27.84$25.0025.9%7.4%41.6%6.1%35.6%3.8%4.6%19.5K-189.6K-7020.06103.20N/AN/A161804150
2025-09-23$27.50$25.0056.4%16.2%40.9%27.5%0.0%-2.0%-27.9%20.1K-321.5K-1.4K0.00109.21N/AN/A40820151
2025-09-24$28.16$25.0053.0%15.2%41.5%25.2%0.0%13.1%11.7%28.7K-450.0K-1.8K0.00108.94N/AN/A00823151
2025-09-25$26.33$25.0048.8%14.0%48.2%22.2%0.0%21.2%6.4%12.8K-154.2K-8220.00111.89N/AN/A00823151
2025-09-26$25.73$25.0031.1%8.9%48.5%9.7%47.7%4.2%27.8%-1.1K-63.7K-6860.0096.11N/AN/A01823150
2025-09-29$26.35$25.0052.4%15.0%49.4%24.7%0.0%1.5%-26.8%1.6K-79.2K-5900.00106.59N/AN/A00823151
2025-09-30$25.94$25.0029.0%8.3%49.1%7.1%0.0%6.0%-1.7%-3.1K-56.5K-5330.00104.57N/AN/A00823151