UNH Options History — May 2018

In May 2018, UNH traded between $228.49 and $247.99. ATM implied volatility averaged 18.0%, placing in the 27.2% IV rank vs the trailing year. The 30-day expected move averaged 5.3%. IV traded below realized volatility by 2.5% (HV 20d: 20.5%). Max pain ranged from $220.00 to $240.00. Net GEX was positive for 22 of 22 trading days. Term structure was in contango for 10 of 22 days. Put/call ratio averaged 1.09.

Notable Days

  • 2018-05-07: Highest Volume — 28,886 contracts
  • 2018-05-29: Largest IV spike — 12.0% change
  • 2018-05-09: Highest IV Rank — 37.1%
  • 2018-05-07: Largest Expected Move — 5.8%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$239.40$228.49$247.99$236.05$241.24
Max Pain$221.82$220.00$240.00$240.00$220.00
ATM IV18.0%15.6%20.0%18.8%17.5%
Expected Move5.3%4.5%5.8%5.6%5.3%
HV 20d20.5%18.9%23.2%23.2%20.3%
HV 60d23.9%23.1%26.6%26.6%23.3%
IV Rank27.2%15.2%37.1%31.2%24.9%
IV Percentile48.3%25.8%71.8%58.7%40.1%
Term Structure-0.2%-2.0%0.7%0.2%-0.3%
VWIV18.7%16.4%21.5%19.2%18.5%
Skew 25d3.1%2.4%3.4%3.4%3.1%
Skew 10d6.5%5.0%8.7%7.7%6.6%
Call IV 25d16.7%14.6%18.6%17.2%16.3%
Put IV 25d19.7%17.4%21.8%20.6%19.4%
Bid-Ask Spread %14.6410.3322.1812.0713.61
Gamma HHI0.200.110.260.200.20
Net GEX47.2M9.0M81.9M29.0M54.8M
Net DEX-604.8M-991.4M-168.5M-430.0M-560.4M
Net VEX-4.0M-4.5M-3.8M-3.9M-3.8M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio1.090.482.160.801.86
Total Volume12,705.0457,29828,8869,27221,679
Total OI149,126.227136,151167,490137,151144,311

Daily Data (22 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2018-05-01$236.05$240.0018.8%5.6%23.2%31.2%19.2%3.4%0.2%29.0M-430.0M-3.9M0.8012.075,1504,12268,25868,893
2018-05-02$233.52$240.0019.2%5.6%22.4%33.1%19.6%3.4%-0.1%15.2M-331.3M-3.9M1.3613.583,5574,85167,74070,013
2018-05-03$233.22$220.0018.9%5.7%22.4%32.0%20.5%3.3%0.1%11.2M-293.9M-4.0M1.3310.895,0496,71968,12971,184
2018-05-04$236.24$220.0018.0%5.2%20.6%27.5%19.1%2.9%0.4%18.1M-435.7M-3.9M1.2510.584,9976,23569,30372,231
2018-05-07$233.51$220.0019.8%5.8%21.2%36.4%21.5%3.3%0.5%9.0M-318.3M-3.8M0.4816.5819,5449,34266,03070,121
2018-05-08$231.84$220.0019.1%5.7%21.0%32.7%19.2%3.4%0.6%22.7M-303.6M-4.2M0.7612.156,1594,70082,36774,855
2018-05-09$228.49$220.0020.0%5.5%20.6%37.1%19.6%3.1%-0.7%12.3M-168.5M-4.0M1.0714.506,5657,00984,53475,282
2018-05-10$233.28$220.0018.9%5.5%21.5%31.7%19.2%2.7%0.7%35.1M-383.4M-4.2M0.7214.106,6214,79987,06975,774
2018-05-11$238.69$220.0018.8%5.3%22.7%31.4%20.7%3.2%-0.5%64.8M-694.8M-4.5M0.7914.667,9606,25689,30076,258
2018-05-14$242.56$220.0018.5%5.4%20.6%29.6%18.8%3.4%-0.4%81.9M-907.0M-4.2M0.5820.0010,2685,99687,15674,164
2018-05-15$238.95$220.0018.7%5.4%19.0%30.9%20.5%3.0%-0.2%57.2M-649.1M-4.2M1.3013.874,9766,48585,96474,928
2018-05-16$241.50$220.0018.1%5.2%19.2%27.9%18.7%3.3%-0.6%70.7M-818.0M-4.2M2.1610.332,9706,42986,64076,820
2018-05-17$242.73$220.0017.8%5.2%19.2%26.5%17.0%3.3%-0.8%76.1M-884.4M-4.1M1.1817.855,6806,67486,59277,686
2018-05-18$244.40$220.0017.4%5.1%18.9%24.3%16.9%3.3%-2.0%75.9M-991.4M-4.1M0.7114.607,9095,63387,64979,841
2018-05-21$247.99$220.0016.7%4.8%19.4%20.6%17.1%2.4%-0.1%61.1M-964.0M-3.9M0.5716.009,5935,50671,01467,961
2018-05-22$244.85$220.0016.6%4.9%20.0%20.1%17.3%2.6%0.1%54.5M-764.7M-3.8M1.4718.983,8235,63068,64869,093
2018-05-23$243.48$220.0016.7%4.9%20.1%20.8%16.8%2.6%0.1%51.8M-691.8M-3.9M1.2322.183,9074,79969,00670,345
2018-05-24$242.86$220.0016.2%4.8%19.9%18.4%16.4%2.6%0.1%49.5M-657.4M-3.9M1.5013.062,9194,37969,66871,347
2018-05-25$244.70$220.0015.6%4.5%19.6%15.2%17.4%2.7%0.1%74.6M-741.5M-3.9M0.9115.945,6855,18570,14172,474
2018-05-29$241.83$220.0017.4%5.4%19.8%24.5%18.9%3.1%-0.3%46.8M-578.8M-3.9M0.9912.805,8145,73869,24370,430
2018-05-30$244.85$220.0017.0%5.0%20.0%22.4%18.4%3.0%-0.5%65.4M-738.3M-3.9M0.8613.896,5455,65470,36571,950
2018-05-31$241.24$220.0017.5%5.3%20.3%24.9%18.5%3.1%-0.3%54.8M-560.4M-3.8M1.8613.617,56914,11071,95672,355