OPEN Options History — April 2021

In April 2021, OPEN traded between $16.30 and $21.98. ATM implied volatility averaged 84.0%, placing in the 63.8% IV rank vs the trailing year. The 30-day expected move averaged 24.8%. IV traded below realized volatility by 22.7% (HV 20d: 106.6%). Max pain ranged from $21.00 to $27.00. Net GEX was positive for 9 of 21 trading days. Term structure was in contango for 4 of 21 days. Put/call ratio averaged 0.76.

Notable Days

  • 2021-04-20: Highest Volume — 65,959 contracts
  • 2021-04-12: Largest IV spike — 9.7% change
  • 2021-04-05: Highest IV Rank — 70.3%
  • 2021-04-05: Largest Expected Move — 28.4%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$20.00$16.30$21.98$21.73$20.05
Max Pain$23.52$21.00$27.00$25.00$21.00
ATM IV84.0%73.8%92.1%86.0%86.9%
Expected Move24.8%22.4%28.4%24.6%24.9%
HV 20d106.6%73.5%555.9%555.9%87.2%
HV 60d329.4%323.1%333.1%332.5%324.4%
IV Rank63.8%55.7%70.3%65.4%66.1%
IV Percentile91.4%89.3%94.0%92.9%90.1%
Term Structure-3.1%-9.2%9.7%9.7%-9.2%
VWIV87.5%78.6%99.3%88.5%88.5%
Skew 25d-0.8%-4.4%3.4%-1.3%-2.4%
Skew 10d-1.2%-6.9%6.4%2.6%-3.0%
Call IV 25d88.1%79.4%95.6%89.4%89.8%
Put IV 25d87.4%78.1%98.4%88.1%87.5%
Bid-Ask Spread %27.498.1242.9736.7442.97
Gamma HHI0.100.060.220.080.06
Net GEX-260.4K-2.5M1.4M-132.3K824.7K
Net DEX29.0M-62.9M117.2M14.5M-13.4M
Net VEX-861.8K-985.5K-672.8K-956.5K-895.7K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.760.193.390.280.31
Total Volume23,390.6674,37165,95912,2244,371
Total OI325,364.714289,057381,749309,029317,685

Daily Data (21 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2021-04-01$21.73$25.0086.0%24.6%555.9%65.4%88.5%-1.3%9.7%-132.3K14.5M-956.5K0.2836.749,5872,637167,104141,925
2021-04-05$20.95$27.0092.1%28.4%100.6%70.3%99.3%2.8%-5.0%-413.3K34.2M-872.0K0.4225.6810,5164,445167,911142,605
2021-04-06$21.98$27.0085.2%26.4%96.7%64.8%91.4%3.4%-1.5%71.3K7.9M-930.2K0.7229.0011,9728,569177,699143,613
2021-04-07$20.49$26.0081.2%25.7%96.3%61.6%91.9%-3.7%-1.9%-640.1K45.4M-867.6K0.8336.6010,3598,551180,289149,338
2021-04-08$20.24$26.0079.5%25.3%89.7%60.3%89.8%-0.6%-1.9%-798.4K54.7M-857.7K0.4734.9610,8365,142184,115152,972
2021-04-09$20.38$26.0073.8%24.4%78.7%55.7%85.8%0.0%-2.3%-824.1K53.0M-863.3K0.9920.3610,72110,640187,641155,102
2021-04-12$19.34$26.0081.0%24.1%78.8%61.4%85.5%1.2%0.8%-1.6M87.9M-779.6K1.0320.6612,21512,591188,725159,691
2021-04-13$20.42$25.0076.8%23.8%78.2%58.0%83.8%-0.8%-2.6%-1.2M63.2M-852.0K0.6011.8016,70810,023193,536166,503
2021-04-14$20.21$25.0080.3%23.0%77.2%60.9%82.0%-0.9%-0.7%-1.6M64.9M-843.5K0.3716.5512,1664,518198,336168,037
2021-04-15$19.62$24.0079.5%22.8%76.0%60.2%80.3%-2.3%1.4%-2.5M81.9M-818.6K0.9325.9012,43711,616204,069168,950
2021-04-16$18.27$24.0078.1%22.4%76.7%59.1%78.6%-1.3%-0.9%-740.8K117.2M-750.0K1.4812.6020,50330,285207,924173,825
2021-04-19$17.31$24.0081.5%23.4%73.5%61.9%84.1%-1.3%0.5%-704.6K70.9M-730.2K0.7341.7724,90018,206155,250133,807
2021-04-20$16.30$21.0085.8%24.6%74.4%65.3%86.7%0.3%-6.5%-542.6K80.5M-672.8K3.398.7115,04050,919166,049134,632
2021-04-21$18.44$21.0088.9%25.5%88.0%67.7%89.6%0.1%-6.0%154.0K26.1M-828.6K0.268.1217,5024,538172,958125,822
2021-04-22$18.72$21.0087.8%25.2%81.4%66.9%89.5%-4.4%-7.5%223.8K19.9M-843.5K0.4110.5614,4255,965175,907125,908
2021-04-23$19.62$21.0087.2%25.0%83.2%66.4%88.6%-1.6%-5.3%487.3K-2.6M-885.7K0.3735.008,5253,189178,384124,176
2021-04-26$21.51$21.0089.3%25.6%88.5%68.1%91.1%-0.0%-7.1%942.1K-47.6M-954.8K0.2737.0523,2366,278179,442124,748
2021-04-27$21.60$21.0087.1%25.0%85.3%66.4%88.1%-1.6%-5.6%1.1M-54.0M-983.3K0.1937.6123,0844,324185,478124,311
2021-04-28$21.94$21.0087.1%25.0%85.4%66.3%87.4%1.0%-6.0%1.4M-62.9M-985.5K0.6642.324,4572,920190,529123,672
2021-04-29$20.79$21.0087.9%25.2%87.0%67.0%88.0%-2.5%-7.6%1.0M-32.2M-927.8K1.2142.365,5606,728190,270123,721
2021-04-30$20.05$21.0086.9%24.9%87.2%66.1%88.5%-2.4%-9.2%824.7K-13.4M-895.7K0.3142.973,3351,036190,690126,995