OPEN Options History — May 2021

In May 2021, OPEN traded between $14.28 and $19.65. ATM implied volatility averaged 88.1%, placing in the 67.1% IV rank vs the trailing year. The 30-day expected move averaged 24.1%. IV traded below realized volatility by 2.9% (HV 20d: 91.0%). Max pain ranged from $17.50 to $23.00. Net GEX was positive for 11 of 20 trading days. Term structure was in contango for 9 of 20 days. Put/call ratio averaged 0.38.

Notable Days

  • 2021-05-13: Highest Volume — 57,088 contracts
  • 2021-05-12: Largest IV drop — 27.9% change
  • 2021-05-11: Highest IV Rank — 94.9%
  • 2021-05-04: Largest Expected Move — 26.7%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$16.26$14.28$19.65$19.65$15.64
Max Pain$20.50$17.50$23.00$21.00$19.00
ATM IV88.1%72.8%122.7%91.6%72.8%
Expected Move24.1%20.9%26.7%26.3%20.9%
HV 20d91.0%81.6%104.1%86.6%84.1%
HV 60d325.9%324.3%327.2%324.3%327.2%
IV Rank67.1%54.9%94.9%70.0%54.9%
IV Percentile87.0%76.2%99.2%93.3%76.2%
Term Structure-2.7%-11.9%2.1%-10.9%2.1%
VWIV84.7%74.3%94.8%91.4%74.3%
Skew 25d-0.9%-4.4%3.3%1.0%-3.9%
Skew 10d-2.0%-7.8%4.0%2.2%-5.7%
Call IV 25d85.2%75.4%96.0%90.0%75.4%
Put IV 25d84.3%71.4%93.4%91.0%71.4%
Bid-Ask Spread %23.316.0558.3631.426.10
Gamma HHI0.130.060.530.060.10
Net GEX118.7K-1.5M735.2K689.9K715.6K
Net DEX32.3M-6.7M81.0M483.2K-2.9M
Net VEX-645.9K-857.6K-510.0K-857.6K-639.0K
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.380.200.690.280.26
Total Volume20,229.75,88257,0888,4539,603
Total OI312,819226,349365,718318,786257,023

Daily Data (20 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2021-05-03$19.65$21.0091.6%26.3%86.6%70.0%91.4%1.0%-10.9%689.9K483.2K-857.6K0.2831.426,5981,855191,407127,379
2021-05-04$19.06$21.0093.1%26.7%84.9%71.2%94.8%-3.5%-11.9%522.7K13.7M-816.0K0.2441.8519,1974,668192,805127,616
2021-05-05$18.88$21.0092.4%26.5%81.6%70.6%93.4%-2.0%-10.7%585.7K13.5M-808.3K0.2825.504,5921,290195,682127,596
2021-05-06$17.71$23.0096.4%24.3%84.3%73.7%85.5%0.9%-1.2%165.2K35.6M-723.4K0.2526.2624,2176,120195,280123,669
2021-05-07$18.72$23.0094.7%23.7%87.0%72.4%83.0%1.1%-0.5%359.2K16.7M-755.6K0.4918.925,7442,828188,638121,879
2021-05-10$16.62$23.00117.6%25.5%94.8%90.7%90.0%-0.3%-7.5%-127.9K55.4M-636.2K0.2734.8026,4407,250190,180122,342
2021-05-11$17.27$23.00122.7%26.0%93.6%94.9%91.7%1.7%-7.7%281.8K35.7M-680.3K0.5618.6416,0618,942200,916120,755
2021-05-12$15.27$22.0088.4%25.4%102.0%67.4%89.9%-0.7%-6.0%-207.7K73.8M-545.3K0.4358.3627,60311,840205,618121,452
2021-05-13$14.28$22.0090.3%25.9%103.7%68.9%90.7%3.3%-5.5%-309.8K81.0M-510.0K0.3112.5443,45013,638217,340121,151
2021-05-14$15.03$20.0081.7%23.4%104.1%62.0%83.2%-0.1%1.9%-49.8K60.6M-582.6K0.5455.2911,8716,469232,301121,836
2021-05-17$15.30$20.0086.5%24.8%103.2%65.9%85.9%0.5%-1.5%-158.2K59.4M-587.6K0.397.528,4853,350233,640123,663
2021-05-18$15.49$20.0084.0%24.1%101.3%63.8%84.8%-2.0%1.1%-162.1K49.4M-607.6K0.3220.1712,4884,033236,331122,429
2021-05-19$14.57$20.0083.8%24.0%91.6%63.7%84.0%-1.4%1.9%-371.7K66.8M-553.2K0.4622.659,9494,605239,098122,889
2021-05-20$15.18$20.0081.8%23.4%93.1%62.0%82.7%0.4%0.8%-519.8K44.8M-591.3K0.3227.0813,1654,195242,793116,516
2021-05-21$15.12$19.0077.4%22.2%90.6%58.5%79.1%-3.6%2.1%-1.5M36.9M-592.8K0.699.618,7686,057248,908116,810
2021-05-24$15.18$19.0079.3%22.7%82.1%60.0%79.7%-1.0%-2.1%490.3K7.0M-582.4K0.2016.5114,5262,866150,00776,342
2021-05-25$14.82$17.5075.3%21.6%81.7%56.8%76.9%-2.2%1.5%548.6K10.7M-571.1K0.3610.967,0152,557155,76877,764
2021-05-26$15.70$17.5076.9%22.1%85.4%58.2%77.5%-4.4%0.6%679.9K-6.4M-630.0K0.3815.9023,4998,980159,01579,281
2021-05-27$15.73$19.0075.5%21.6%84.4%57.0%75.5%-1.7%0.3%735.2K-6.7M-647.6K0.506.056,5133,267166,20486,057
2021-05-28$15.64$19.0072.8%20.9%84.1%54.9%74.3%-3.9%2.1%715.6K-2.9M-639.0K0.266.107,6301,973168,65588,368