S Options History — April 2025

In April 2025, S traded between $16.14 and $18.88. ATM implied volatility averaged 54.1%, placing in the 38.1% IV rank vs the trailing year. The 30-day expected move averaged 14.7%. IV traded below realized volatility by 14.8% (HV 20d: 69.0%). Max pain ranged from $17.50 to $20.00. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 13 of 21 days. Put/call ratio averaged 0.38.

Notable Days

  • 2025-04-09: Highest Volume — 17,377 contracts
  • 2025-04-28: Largest IV spike — 37.9% change
  • 2025-04-28: Highest IV Rank — 65.8%
  • 2025-04-08: Largest Expected Move — 19.0%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$17.58$16.14$18.88$18.55$18.38
Max Pain$18.31$17.50$20.00$20.00$17.50
ATM IV54.1%42.7%67.1%44.0%60.4%
Expected Move14.7%12.2%19.0%12.4%13.5%
HV 20d69.0%47.3%79.5%49.5%77.7%
HV 60d50.9%38.6%56.6%38.6%56.6%
IV Rank38.1%13.6%65.8%16.5%51.6%
IV Percentile62.4%38.9%84.5%43.7%68.3%
Term Structure2.7%-3.3%12.8%-0.3%4.0%
VWIV49.7%41.7%60.2%42.7%46.1%
Skew 25d7.8%2.7%10.8%3.4%10.5%
Skew 10d13.7%-12.7%32.3%5.6%32.3%
Call IV 25d49.4%42.2%58.7%42.3%54.8%
Put IV 25d57.3%44.9%66.9%45.6%65.3%
Bid-Ask Spread %46.2136.5258.6344.4942.59
Gamma HHI0.080.070.100.090.08
Net GEX976.1K466.9K1.7M1.1M1.6M
Net DEX-24.2M-48.3M-4.1M-29.0M-41.7M
Net VEX-594.4K-652.7K-507.4K-623.9K-633.3K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.380.141.010.440.33
Total Volume3,662.0951,18517,3771,4121,942
Total OI176,799167,160184,812167,160182,431

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2025-04-01$18.55$20.0044.0%12.4%49.5%16.5%42.7%3.4%-0.3%1.1M-29.0M-623.9K0.4444.49N/AN/A978434122,81844,342
2025-04-02$18.80$19.0042.7%12.2%49.6%13.6%41.7%2.7%-0.3%1.2M-33.2M-639.3K0.3147.02N/AN/A1,946601123,30244,638
2025-04-03$18.08$19.0049.6%13.9%51.2%28.3%47.0%5.0%-0.2%944.6K-24.1M-605.1K0.5843.39N/AN/A1,531891123,39744,763
2025-04-04$17.02$18.0060.5%16.7%54.7%51.6%55.7%4.5%-3.3%715.0K-12.8M-567.4K0.5837.29N/AN/A4,0502,361124,04544,836
2025-04-07$16.73$18.0063.2%17.4%47.7%57.5%56.5%7.8%-3.0%607.4K-10.9M-553.4K0.5540.65N/AN/A2,0271,120123,49444,767
2025-04-08$16.19$18.0064.2%19.0%47.3%59.6%60.2%10.4%2.4%515.0K-4.1M-517.4K0.5952.78N/AN/A2,4831,455124,53544,792
2025-04-09$18.88$18.0050.8%14.8%72.8%30.9%52.9%7.6%0.1%1.2M-38.6M-650.3K0.2848.56N/AN/A13,5233,854126,00345,840
2025-04-10$17.38$19.0057.4%17.4%76.8%45.1%58.3%7.4%3.5%951.5K-21.5M-615.6K1.0154.91N/AN/A2,2512,276135,16848,078
2025-04-11$17.50$19.0057.3%17.0%76.8%44.9%54.7%8.9%1.6%941.1K-23.3M-620.0K0.5752.50N/AN/A1,654942136,18248,630
2025-04-14$17.24$19.0053.2%15.1%75.7%36.1%46.6%10.4%0.3%735.2K-18.3M-590.4K0.1953.22N/AN/A1,920366133,41447,433
2025-04-15$17.24$19.0050.5%14.4%75.4%30.4%49.8%10.3%-0.8%763.3K-18.0M-580.7K0.4946.85N/AN/A794391134,58346,922
2025-04-16$17.06$19.0052.6%15.1%74.9%34.8%53.1%9.8%-0.7%666.3K-15.5M-577.4K0.2843.54N/AN/A1,122317134,94946,851
2025-04-17$16.77$18.0049.3%14.1%75.0%27.7%46.9%7.5%1.1%602.4K-10.9M-550.4K0.3642.74N/AN/A2,7901,002135,04046,611
2025-04-21$16.14$18.0055.4%16.2%75.8%40.9%54.1%10.8%8.6%466.9K-5.0M-507.4K0.1638.31N/AN/A4,378691129,07245,161
2025-04-22$16.29$18.0052.2%14.7%73.7%34.0%50.4%9.6%8.6%539.6K-8.7M-526.9K0.3536.52N/AN/A1,270446132,12545,029
2025-04-23$17.32$18.0048.9%13.9%77.9%26.8%48.4%7.7%10.6%881.4K-23.5M-585.1K0.1642.08N/AN/A4,504714132,94545,000
2025-04-24$17.96$17.5047.6%13.0%79.4%24.1%45.9%7.4%12.8%1.3M-33.8M-612.3K0.1450.36N/AN/A2,600368135,77945,108
2025-04-25$18.27$17.5048.6%12.6%79.5%26.3%44.4%5.4%11.1%1.5M-42.2M-631.6K0.1750.53N/AN/A2,388402137,47345,179
2025-04-28$18.58$17.5067.1%13.3%78.8%65.8%45.2%9.7%-0.2%1.6M-44.9M-642.4K0.1943.46N/AN/A1,700320136,00044,495
2025-04-29$18.75$17.5060.9%13.0%77.9%52.6%44.0%7.2%0.7%1.7M-48.3M-652.7K0.1758.63N/AN/A1,792310136,88444,665
2025-04-30$18.38$17.5060.4%13.5%77.7%51.6%46.1%10.5%4.0%1.6M-41.7M-633.3K0.3342.59N/AN/A1,459483137,65144,780