UNH Options History — May 2021

In May 2021, UNH traded between $405.71 and $422.84. ATM implied volatility averaged 21.1%, placing in the 11.7% IV rank vs the trailing year. The 30-day expected move averaged 6.0%. IV traded above realized volatility by 3.3% (HV 20d: 17.7%). Max pain ranged from $360.00 to $380.00. Net GEX was positive for 20 of 20 trading days. Term structure was in contango for 14 of 20 days. Put/call ratio averaged 0.92.

Notable Days

  • 2021-05-07: Highest Volume — 19,189 contracts
  • 2021-05-12: Largest IV spike — 14.6% change
  • 2021-05-12: Highest IV Rank — 29.6%
  • 2021-05-12: Largest Expected Move — 7.2%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$411.54$405.71$422.84$405.71$411.75
Max Pain$365.00$360.00$380.00$380.00$380.00
ATM IV21.1%18.0%25.5%21.3%18.0%
Expected Move6.0%5.0%7.2%5.6%5.0%
HV 20d17.7%15.5%21.1%20.1%15.5%
HV 60d19.2%18.8%19.5%19.5%19.0%
IV Rank11.7%0.0%29.6%12.7%0.0%
IV Percentile5.1%0.0%19.0%4.4%0.0%
Term Structure0.3%-0.8%1.7%0.7%1.6%
VWIV21.5%18.0%26.1%20.4%18.0%
Skew 25d3.6%1.9%6.2%4.3%2.5%
Skew 10d7.5%4.6%11.1%6.5%5.7%
Call IV 25d19.4%16.9%22.3%20.4%16.9%
Put IV 25d23.1%19.4%26.3%24.6%19.4%
Bid-Ask Spread %51.3035.8563.9343.9844.60
Gamma HHI0.110.080.210.130.08
Net GEX62.2M3.4M92.1M77.3M42.0M
Net DEX-1.64B-2.20B-1.30B-1.67B-1.40B
Net VEX-7.6M-8.3M-7.2M-7.4M-7.7M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.920.281.700.650.98
Total Volume10,512.73,97619,18910,6076,021
Total OI161,778.25149,172171,162149,172166,143

Daily Data (20 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2021-05-03$405.71$380.0021.3%5.6%20.1%12.7%20.4%4.3%0.7%77.3M-1.67B-7.4M0.6543.986,4304,17776,66172,511
2021-05-04$410.05$380.0021.7%5.9%18.3%14.3%22.2%4.6%0.0%83.0M-1.86B-7.4M0.2841.5413,1933,73578,74174,383
2021-05-05$411.60$380.0019.7%5.6%18.3%6.2%20.8%1.9%0.2%92.1M-1.91B-7.5M1.1840.464,8815,74680,79976,247
2021-05-06$413.99$360.0020.5%6.1%18.2%9.5%21.8%3.9%1.7%81.1M-2.02B-7.3M0.6746.889,9086,66281,26780,101
2021-05-07$417.73$360.0020.3%5.7%16.6%8.7%20.7%3.7%-0.8%90.2M-2.14B-7.2M0.5653.7112,2616,92883,64483,602
2021-05-10$422.84$360.0022.1%6.2%16.8%16.0%22.2%3.5%-0.6%71.7M-2.20B-7.6M0.6952.887,3395,05683,15379,052
2021-05-11$411.46$360.0022.2%6.6%20.3%16.3%23.3%2.4%1.1%58.1M-1.66B-8.0M1.3958.505,0066,96683,23281,377
2021-05-12$406.76$360.0025.5%7.2%21.1%29.6%26.1%4.0%-0.3%45.8M-1.39B-8.3M1.6558.202,7964,60883,25182,782
2021-05-13$410.16$360.0023.1%6.8%17.7%19.8%25.0%6.2%1.3%51.9M-1.56B-8.0M1.7053.402,8374,83583,77683,299
2021-05-14$410.15$360.0021.0%6.1%17.7%11.2%24.6%2.9%-0.4%3.4M-1.56B-7.8M0.5355.634,2272,23484,57184,848
2021-05-17$409.72$360.0021.3%6.2%17.8%12.7%20.5%3.7%-0.6%66.2M-1.54B-7.6M0.6557.203,3962,22180,33579,585
2021-05-18$411.57$360.0021.3%6.1%17.3%12.5%21.9%3.8%-0.8%69.8M-1.61B-7.6M1.1550.241,8492,12782,28980,673
2021-05-19$407.71$360.0022.6%6.5%17.6%17.7%22.9%4.5%0.1%65.2M-1.41B-7.9M0.7258.794,5993,30482,81481,653
2021-05-20$409.86$360.0021.4%6.1%17.6%13.1%21.6%4.0%0.9%84.1M-1.56B-7.8M0.5563.937,4734,12585,06782,584
2021-05-21$412.03$360.0021.0%6.0%17.5%11.3%21.2%3.6%0.2%60.3M-1.69B-7.6M0.4462.8612,6395,55586,17384,989
2021-05-24$410.29$360.0019.8%5.5%16.9%6.5%19.0%3.8%0.1%50.2M-1.30B-7.6M0.9635.855,1094,90176,24673,890
2021-05-25$412.50$360.0020.2%5.6%16.9%7.9%19.9%3.7%0.7%52.3M-1.39B-7.3M0.9053.466,1015,47276,71375,828
2021-05-26$412.64$370.0019.2%5.4%16.8%3.9%18.3%3.2%0.7%49.5M-1.45B-7.4M1.0252.544,1574,25880,09779,253
2021-05-27$412.33$370.0019.1%5.2%15.8%3.4%19.2%2.6%0.4%49.9M-1.45B-7.5M1.6241.362,7204,40282,02181,915
2021-05-28$411.75$380.0018.0%5.0%15.5%0.0%18.0%2.5%1.6%42.0M-1.40B-7.7M0.9844.603,0352,98682,59383,550