S Options History — October 2025

In October 2025, S traded between $16.73 and $17.98. ATM implied volatility averaged 46.2%, placing in the 22.4% IV rank vs the trailing year. The 30-day expected move averaged 13.0%. IV traded above realized volatility by 11.4% (HV 20d: 34.7%). Max pain ranged from $18.00 to $18.00. Net GEX was positive for 23 of 23 trading days. Term structure was in contango for 13 of 23 days. Put/call ratio averaged 0.41.

Notable Days

  • 2025-10-29: Highest Volume — 16,883 contracts
  • 2025-10-31: Largest IV spike — 7.6% change
  • 2025-10-15: Highest IV Rank — 33.7%
  • 2025-10-16: Largest Expected Move — 14.4%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$17.42$16.73$17.98$17.38$17.82
Max Pain$18.00$18.00$18.00$18.00$18.00
ATM IV46.2%40.9%51.5%40.9%51.5%
Expected Move13.0%12.0%14.4%12.0%13.5%
HV 20d34.7%32.1%40.7%33.9%40.7%
HV 60d43.0%40.8%46.1%45.3%41.0%
IV Rank22.4%11.4%33.7%11.4%33.6%
IV Percentile49.5%33.3%58.7%33.3%58.3%
Term Structure3.6%-3.7%17.4%1.2%16.9%
VWIV46.0%41.8%50.2%42.0%47.2%
Skew 25d-0.3%-4.0%5.1%-0.6%-0.1%
Skew 10d-2.6%-15.6%15.5%-4.6%0.3%
Call IV 25d45.8%41.6%50.1%43.5%47.9%
Put IV 25d45.4%39.5%48.8%42.9%47.8%
Bid-Ask Spread %60.5019.9380.7738.0780.77
Gamma HHI0.090.080.160.080.16
Net GEX2.2M1.4M3.4M1.7M3.4M
Net DEX-79.0M-96.7M-57.1M-69.2M-94.5M
Net VEX-900.3K-952.3K-851.0K-891.3K-900.2K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.410.151.281.280.19
Total Volume8,202.3483,36016,8839,78110,336
Total OI296,114.13286,748305,146287,147297,714

Daily Data (23 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-10-01$17.38$18.0040.9%12.0%33.9%11.4%42.0%-0.6%1.2%1.7M-69.2M-891.3K1.2838.07N/AN/A4,2865,495220,71766,430
2025-10-02$17.70$18.0043.7%12.0%34.6%17.2%41.8%-3.0%2.4%1.7M-77.8M-922.1K0.4071.17N/AN/A3,4461,387222,00369,306
2025-10-03$17.96$18.0042.7%12.2%32.3%15.1%42.7%-0.6%0.8%1.5M-88.5M-932.2K0.4969.56N/AN/A5,5842,755223,07669,749
2025-10-06$17.94$18.0044.3%12.7%32.2%18.6%45.3%-0.6%-0.4%2.4M-91.3M-921.9K0.2619.93N/AN/A6,5921,727220,53566,213
2025-10-07$17.23$18.0044.8%12.7%33.6%19.6%44.7%-1.0%-0.2%1.7M-67.3M-875.5K0.5226.04N/AN/A10,5315,433222,29067,252
2025-10-08$17.91$18.0045.5%12.9%36.5%21.1%45.7%-1.2%0.9%2.3M-92.7M-946.3K0.2827.66N/AN/A6,5351,847227,50771,392
2025-10-09$17.98$18.0045.1%12.8%33.5%20.2%44.9%-1.1%-1.0%2.3M-93.9M-952.3K0.5032.48N/AN/A2,2361,124229,33472,415
2025-10-10$17.31$18.0046.9%13.3%35.5%23.9%49.8%-2.3%-3.7%1.7M-69.8M-906.2K0.2346.24N/AN/A8,3431,920229,69572,485
2025-10-13$17.26$18.0045.6%13.0%35.5%21.3%46.1%-0.9%0.2%1.6M-70.1M-886.7K0.2162.08N/AN/A4,227909227,51869,512
2025-10-14$17.13$18.0048.5%13.8%35.1%27.4%48.2%-0.8%-0.1%1.7M-68.2M-888.0K0.2368.77N/AN/A8,9972,081229,94569,703
2025-10-15$16.86$18.0051.5%13.5%34.5%33.7%47.4%-3.5%-2.6%1.6M-61.5M-868.8K0.1959.73N/AN/A5,6201,091231,76569,701
2025-10-16$16.73$18.0048.6%14.4%33.1%27.6%50.2%-1.4%1.7%1.4M-58.6M-867.3K0.2766.18N/AN/A5,4321,450233,99870,105
2025-10-17$16.73$18.0047.2%13.5%32.1%24.7%49.9%0.1%-0.3%1.4M-57.1M-860.3K0.1775.22N/AN/A13,4582,245234,97270,174
2025-10-20$17.16$18.0046.6%13.3%33.6%23.3%46.1%0.9%4.5%2.2M-73.0M-890.0K0.4163.02N/AN/A4,6921,918224,20965,908
2025-10-21$17.77$18.0045.5%12.9%34.5%21.0%45.6%0.8%-0.5%2.8M-94.6M-937.0K0.1556.84N/AN/A7,3811,073225,68966,953
2025-10-22$17.41$18.0047.5%13.6%34.4%25.2%44.5%1.6%-3.0%2.7M-84.0M-914.0K0.7572.49N/AN/A2,3831,777228,29667,174
2025-10-23$17.38$18.0044.2%12.8%34.4%18.4%45.3%0.4%-1.1%2.9M-81.7M-898.3K0.1676.47N/AN/A5,502854229,02168,316
2025-10-24$17.71$18.0047.1%13.6%35.2%24.3%44.8%2.7%4.3%3.3M-93.8M-925.0K0.2380.25N/AN/A4,027923231,81768,770
2025-10-27$17.62$18.0044.9%13.0%35.2%19.7%45.2%5.1%17.0%2.6M-90.2M-899.2K0.5070.45N/AN/A4,2342,137225,30166,448
2025-10-28$17.73$18.0045.1%12.0%33.3%20.1%45.1%-4.0%11.7%2.8M-96.7M-916.9K0.2278.08N/AN/A4,057878227,28567,676
2025-10-29$16.86$18.0046.0%13.1%37.7%22.1%46.0%2.0%17.4%2.0M-68.2M-856.9K0.5371.41N/AN/A11,0095,874228,29968,075
2025-10-30$17.00$18.0047.9%13.5%37.1%26.0%49.5%0.1%16.0%2.0M-74.1M-851.0K1.1778.51N/AN/A2,2342,614228,90266,980
2025-10-31$17.82$18.0051.5%13.5%40.7%33.6%47.2%-0.1%16.9%3.4M-94.5M-900.2K0.1980.77N/AN/A8,7191,617229,45068,264