S Options History — July 2021

In July 2021, S traded between $43.49 and $51.05. ATM implied volatility averaged 64.2%, placing in the 25.4% IV rank vs the trailing year. The 30-day expected move averaged 17.9%. IV traded below realized volatility by 562.7% (HV 20d: 626.9%). Max pain ranged from $45.00 to $50.00. Net GEX was positive for 12 of 16 trading days. Term structure was in contango for 11 of 16 days. Put/call ratio averaged 0.58.

Notable Days

  • 2021-07-30: Highest Volume — 4,751 contracts
  • 2021-07-14: Largest IV drop — 21.6% change
  • 2021-07-13: Highest IV Rank — 34.3%
  • 2021-07-19: Largest Expected Move — 19.3%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$47.80$43.49$51.05$48.84$49.00
Max Pain$46.33$45.00$50.00$50.00$45.00
ATM IV64.2%60.0%78.6%71.6%60.7%
Expected Move17.9%17.2%19.3%18.3%17.4%
HV 20d626.9%622.8%631.0%631.0%624.6%
HV 60d381.2%380.7%381.6%380.9%381.2%
IV Rank25.4%22.8%34.3%30.0%23.2%
IV Percentile43.8%37.7%59.1%50.4%40.5%
Term Structure0.8%-2.9%2.8%1.9%2.6%
VWIV63.6%61.1%68.2%65.0%61.6%
Skew 25d-2.2%-7.7%1.8%-7.7%0.1%
Skew 10d-3.9%-10.7%0.7%-4.7%-0.5%
Call IV 25d65.1%60.7%70.4%69.3%63.0%
Put IV 25d63.0%59.6%68.2%61.6%63.1%
Bid-Ask Spread %34.2922.5849.1449.1436.26
Gamma HHI0.180.150.290.210.17
Net GEX58.5K-53.3K179.8K0114.1K
Net DEX-2.5M-7.8M1.2M0-5.4M
Net VEX-28.4K-53.2K00-53.2K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.580.101.260.710.35
Total Volume1,700.1886044,7516084,751
Total OI4,512.62508,83008,830

Daily Data (16 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call WallPut WallCall VolPut VolCall OIPut OI
2021-07-09$48.84$0.0071.6%18.3%631.0%30.0%65.0%-7.7%1.9%0000.7149.14N/AN/A35625200
2021-07-12$50.46$50.0074.5%18.4%629.6%31.8%66.2%-2.3%-0.4%4.3K-325.2K-2.8K0.3340.86N/AN/A455149291299
2021-07-13$48.52$50.0078.6%18.7%629.8%34.3%64.8%-2.7%-1.7%18.1K-429.7K-5.1K0.7734.00N/AN/A505389629439
2021-07-14$46.10$50.0061.6%17.7%628.9%23.8%62.7%-3.7%2.2%-9.6K290.4K-8.5K1.2638.24N/AN/A4765991,066813
2021-07-15$43.49$50.0061.6%17.7%630.9%23.8%62.6%-3.5%1.7%-53.3K1.2M-12.4K0.3637.93N/AN/A9773491,2881,215
2021-07-16$44.63$45.0060.0%17.2%630.9%22.8%62.3%-3.9%-0.7%-10.7K587.8K-19.1K0.4031.56N/AN/A1,5676292,0621,437
2021-07-19$46.63$45.0067.4%19.3%627.2%27.4%68.2%-2.3%-2.9%30.5K-1.6M-29.1K0.1022.58N/AN/A2,7762672,4921,720
2021-07-20$47.36$45.0062.0%17.8%627.6%24.0%64.0%-2.5%0.4%47.8K-2.2M-29.5K0.3328.65N/AN/A1,0043322,4911,905
2021-07-21$47.26$45.0061.4%17.6%626.3%23.6%63.8%-2.4%1.0%61.4K-2.7M-36.7K0.5429.00N/AN/A5963193,2132,108
2021-07-22$47.60$45.0063.4%18.2%626.2%24.9%63.7%-2.9%-0.8%80.2K-3.2M-38.0K0.3537.82N/AN/A4951753,5602,246
2021-07-23$46.68$45.0060.0%17.2%624.3%22.8%61.7%-2.2%2.2%78.7K-2.9M-40.1K0.9035.09N/AN/A3453103,7992,364
2021-07-26$49.86$45.0062.4%17.9%624.3%24.2%63.8%-1.2%0.9%131.9K-5.3M-41.5K0.2837.46N/AN/A1,9575443,7982,364
2021-07-27$47.66$45.0062.2%17.8%623.6%24.1%63.7%1.7%1.6%91.2K-3.5M-40.4K1.0122.70N/AN/A8358403,8902,484
2021-07-28$49.60$45.0060.5%17.3%622.8%23.1%61.1%-1.0%2.8%171.5K-6.2M-45.0K1.2028.21N/AN/A5716864,5822,669
2021-07-29$51.05$45.0060.2%17.3%623.1%22.9%62.1%1.8%1.7%179.8K-7.8M-52.2K0.4539.10N/AN/A2,5451,1524,9223,226
2021-07-30$49.00$45.0060.7%17.4%624.6%23.2%61.6%0.1%2.6%114.1K-5.4M-53.2K0.3536.26N/AN/A3,5141,2375,1313,699