S Options History — May 2025

In May 2025, S traded between $17.45 and $20.41. ATM implied volatility averaged 60.5%, placing in the 51.8% IV rank vs the trailing year. The 30-day expected move averaged 16.3%. IV traded above realized volatility by 15.2% (HV 20d: 45.3%). Max pain ranged from $17.50 to $20.00. Net GEX was positive for 20 of 21 trading days. Term structure was in contango for 3 of 21 days. Put/call ratio averaged 0.41.

Notable Days

  • 2025-05-29: Highest Volume — 42,059 contracts
  • 2025-05-29: Largest IV drop — 35.1% change
  • 2025-05-07: Highest IV Rank — 64.5%
  • 2025-05-28: Largest Expected Move — 20.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$19.42$17.45$20.41$18.70$17.52
Max Pain$19.79$17.50$20.00$17.50$20.00
ATM IV60.5%40.6%66.5%59.8%40.7%
Expected Move16.3%11.3%20.3%13.2%11.3%
HV 20d45.3%27.4%77.8%77.8%52.8%
HV 60d56.6%54.6%60.4%56.7%60.4%
IV Rank51.8%9.1%64.5%50.1%9.3%
IV Percentile67.3%26.2%81.3%66.3%27.4%
Term Structure-2.6%-5.2%5.2%5.2%-1.9%
VWIV56.0%40.0%69.3%47.1%40.0%
Skew 25d6.7%1.8%10.1%5.9%1.8%
Skew 10d16.9%3.0%30.7%28.5%3.0%
Call IV 25d57.5%40.3%62.8%59.1%40.3%
Put IV 25d64.2%42.0%70.9%65.1%42.0%
Bid-Ask Spread %36.5915.3165.2658.0456.26
Gamma HHI0.100.090.260.090.26
Net GEX1.8M-339.8K2.2M1.8M2.2M
Net DEX-60.1M-82.0M-3.0M-48.1M-13.5M
Net VEX-678.5K-728.9K-536.6K-647.5K-547.6K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.410.051.360.320.87
Total Volume6,565.71491142,0591,8798,597
Total OI191,510.714183,060225,813183,060225,813

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-05-01$18.70$17.5059.8%13.2%77.8%50.1%47.1%5.9%5.2%1.8M-48.1M-647.5K0.3258.04N/AN/A1,421458137,96445,096
2025-05-02$18.77$18.0061.4%11.5%76.5%53.6%40.1%7.3%0.8%1.5M-50.9M-647.4K0.0565.26N/AN/A4,970236138,59045,268
2025-05-05$18.94$20.0064.7%16.6%72.9%60.7%56.6%6.6%-2.4%1.7M-52.6M-682.7K0.2047.69N/AN/A1,744341139,25244,718
2025-05-06$18.80$20.0066.0%16.8%72.5%63.4%57.7%8.4%-4.3%1.7M-50.1M-671.8K0.4827.03N/AN/A3,1921,542140,19844,857
2025-05-07$19.12$20.0066.5%17.1%71.2%64.5%56.0%9.6%-4.0%1.7M-57.4M-692.7K0.2760.65N/AN/A716195142,38646,101
2025-05-08$19.41$20.0063.6%16.8%46.3%58.3%57.9%8.5%-2.7%1.9M-64.3M-703.1K0.6116.43N/AN/A1,109681142,46946,185
2025-05-09$19.13$20.0063.7%16.5%34.7%58.6%57.2%8.3%-3.1%2.0M-58.1M-685.0K0.1830.86N/AN/A1,860340142,77146,263
2025-05-12$20.06$20.0061.0%15.9%37.9%52.7%54.3%6.0%-5.2%2.1M-74.9M-712.2K0.4352.52N/AN/A3,7511,601142,07943,344
2025-05-13$20.41$20.0060.0%16.4%37.1%50.7%54.7%7.1%-1.9%2.0M-81.7M-728.9K0.1332.15N/AN/A2,165284143,26844,516
2025-05-14$20.15$20.0061.9%16.6%37.8%54.8%57.4%8.7%-4.4%2.0M-78.5M-728.3K0.3427.29N/AN/A1,305443144,59344,524
2025-05-15$20.13$20.0061.4%16.8%37.3%53.6%57.6%5.3%-2.7%1.9M-78.0M-727.2K1.3622.37N/AN/A1,1871,620145,12944,705
2025-05-16$20.27$20.0060.2%16.5%36.1%51.1%55.0%6.1%-3.2%2.1M-82.0M-724.0K0.0720.30N/AN/A4,561305145,67744,622
2025-05-19$19.91$20.0060.9%17.0%33.1%52.5%59.6%5.8%-2.0%2.0M-69.1M-700.3K0.2815.31N/AN/A1,697476143,95643,261
2025-05-20$20.04$20.0061.6%17.4%33.2%54.0%59.0%6.5%-3.1%2.0M-71.3M-702.2K0.1519.93N/AN/A2,101319144,65243,612
2025-05-21$19.48$20.0063.4%18.2%30.0%58.0%61.9%5.6%-4.8%1.8M-60.1M-676.3K0.3118.38N/AN/A3,2861,019145,52143,866
2025-05-22$19.81$20.0062.6%18.1%28.1%56.2%61.9%7.6%-2.9%2.0M-66.8M-685.5K0.1822.43N/AN/A1,251222146,29744,176
2025-05-23$19.84$20.0063.5%18.6%27.8%58.1%63.7%6.5%-4.9%2.1M-67.8M-688.9K0.1937.86N/AN/A2,806535146,62944,299
2025-05-27$19.99$20.0065.1%19.8%27.4%61.6%68.1%6.2%-4.8%1.9M-70.6M-695.8K0.4833.42N/AN/A8,4434,035145,32344,250
2025-05-28$19.80$20.0062.6%20.3%27.7%56.1%69.3%10.1%-2.7%1.8M-63.9M-664.9K1.1361.80N/AN/A11,73013,277150,66848,326
2025-05-29$17.45$20.0040.6%11.7%53.2%9.1%41.5%2.5%0.8%-339.8K-3.0M-536.6K0.5442.36N/AN/A27,28814,771158,16958,332
2025-05-30$17.52$20.0040.7%11.3%52.8%9.3%40.0%1.8%-1.9%2.2M-13.5M-547.6K0.8756.26N/AN/A4,6013,996164,18361,630