UNH Options History — December 2018

In December 2018, UNH traded between $234.53 and $285.54. ATM implied volatility averaged 27.5%, placing in the 65.2% IV rank vs the trailing year. The 30-day expected move averaged 8.2%. IV traded below realized volatility by 0.1% (HV 20d: 27.6%). Max pain ranged from $250.00 to $270.00. Net GEX was positive for 16 of 20 trading days. Term structure was in contango for 13 of 20 days. Put/call ratio averaged 0.98.

Notable Days

  • 2018-12-06: Highest Volume — 20,371 contracts
  • 2018-12-24: Largest IV spike — 17.0% change
  • 2018-12-20: Highest IV Rank — 100.0%
  • 2018-12-24: Largest Expected Move — 10.9%

Monthly Statistics

MetricAvgMinMaxOpenClose
Price$259.48$234.53$285.54$285.54$249.09
Max Pain$253.00$250.00$270.00$270.00$250.00
ATM IV27.5%17.1%39.8%17.1%31.6%
Expected Move8.2%5.1%10.9%5.1%9.5%
HV 20d27.6%25.3%30.6%27.9%27.6%
HV 60d24.8%22.9%27.2%23.4%27.2%
IV Rank65.2%19.4%100.0%19.4%68.8%
IV Percentile86.5%29.4%100.0%29.4%97.2%
Term Structure0.4%-3.4%3.3%0.6%-0.6%
VWIV28.9%18.8%39.1%18.8%35.1%
Skew 25d5.2%2.8%9.6%2.8%4.8%
Skew 10d10.6%4.8%18.7%4.8%9.1%
Call IV 25d25.3%15.9%35.0%15.9%29.3%
Put IV 25d30.4%18.7%44.6%18.7%34.2%
Bid-Ask Spread %26.6219.0238.9224.6819.83
Gamma HHI0.110.070.230.230.11
Net GEX17.4M-9.7M67.3M67.3M13.0M
Net DEX-347.6M-1.50B534.6M-1.50B-129.2M
Net VEX-5.2M-5.6M-4.6M-4.9M-4.9M
Div Yield0.0%0.0%0.0%0.0%0.0%
P/C Ratio0.980.462.070.652.07
Total Volume13,129.757,50920,37112,8289,072
Total OI190,467.4159,562207,656186,710166,836

Daily Data (20 trading days)

DatePriceMax PainATM IVExp MoveHV 20dIV RankVWIVSkew 25dTerm StrGEXDEXVEXP/CSpread %Call VolPut VolCall OIPut OI
2018-12-03$285.54$270.0017.1%5.1%27.9%19.4%18.8%2.8%0.6%67.3M-1.50B-4.9M0.6524.687,7705,05899,41287,298
2018-12-04$279.55$270.0019.8%6.2%29.3%33.2%21.4%3.6%0.3%46.1M-1.16B-5.4M0.4631.1312,3885,670103,37489,208
2018-12-05$278.99$270.0019.9%6.4%29.4%33.7%21.6%3.5%0.7%44.2M-1.12B-5.4M0.4733.7812,4775,922103,37489,208
2018-12-06$276.16$250.0021.9%6.6%25.3%44.4%24.3%4.2%0.6%36.3M-989.5M-5.6M1.2137.009,21611,155106,70190,130
2018-12-07$270.89$250.0022.8%7.1%26.2%49.1%24.9%4.0%0.5%25.0M-690.2M-5.5M1.6838.922,8114,709106,43091,313
2018-12-10$267.14$250.0024.6%7.4%26.5%58.5%26.1%4.7%1.1%14.9M-521.0M-5.4M0.5134.078,7724,433104,21188,355
2018-12-11$268.18$250.0023.4%7.2%26.1%52.4%25.3%4.2%1.8%19.6M-604.1M-5.4M0.8029.275,1714,119108,47389,046
2018-12-12$271.85$250.0022.2%7.1%26.1%46.0%24.8%3.9%2.4%31.8M-824.0M-5.5M0.6223.265,3033,267110,17490,701
2018-12-13$272.27$250.0021.7%7.0%25.6%43.4%24.8%3.7%3.3%31.9M-839.5M-5.5M0.7220.824,3693,140110,87291,141
2018-12-14$264.13$250.0024.3%7.6%27.9%57.2%25.9%4.5%3.3%1.4M-362.0M-5.4M0.8427.946,3855,352112,24991,961
2018-12-17$256.97$250.0028.2%8.1%27.8%77.1%29.2%4.3%0.9%4.7M-79.8M-5.2M0.8322.164,7363,922108,99489,550
2018-12-18$252.74$250.0030.2%8.7%27.2%87.9%31.7%4.8%-0.5%501.7K123.7M-5.1M1.7524.376,08110,612110,57790,868
2018-12-19$249.67$250.0030.0%8.6%27.2%86.7%29.8%5.1%-0.1%-6.3M252.4M-5.1M1.1720.416,1387,172110,97994,353
2018-12-20$241.50$250.0032.9%9.4%29.3%100.0%30.9%6.0%0.6%-9.7M444.4M-4.8M1.1925.778,2979,865111,85891,921
2018-12-21$238.87$250.0034.1%9.6%29.3%100.0%34.1%6.7%0.9%-1.1M534.6M-4.7M0.9030.888,3497,500114,31993,337
2018-12-24$234.53$250.0039.8%10.9%28.6%100.0%38.7%9.6%-3.4%-2.2M346.8M-4.6M1.6124.554,2616,85880,18379,379
2018-12-26$242.14$250.0035.4%10.6%30.6%83.0%35.8%7.2%-1.6%2.7M138.0M-4.8M0.6522.4411,5257,47680,93178,876
2018-12-27$243.72$250.0034.7%10.8%27.0%80.5%39.1%7.2%-0.2%9.0M50.2M-5.0M0.7919.024,3213,39489,35281,173
2018-12-28$245.63$250.0035.4%10.2%26.5%83.2%36.8%8.1%-2.0%19.5M-23.9M-5.1M0.7422.038,9086,62190,59481,637
2018-12-31$249.09$250.0031.6%9.5%27.6%68.8%35.1%4.8%-0.6%13.0M-129.2M-4.9M2.0719.832,9586,11485,03081,806