$UNH Bearish Engulfing Pattern 
Daily appearances since 2010-01-04: 113
Performance (Close) 5 days later ±:
Avg: 0.20
Worst: -28.58
Best: 35.86 

10 days later:
Avg: 0.75
Worst: -25.67
Best: 22.90 

30 days later:
Avg: 2.52
Worst: -56.33
Best: 80.95