$AMZN Engulfing Pattern 
Daily appearances since 2010-01-04: 91
Performance (Close) 5 days later ±:
Avg: 6.42
Worst: -134.03
Best: 224.74 

10 days later:
Avg: 11.52
Worst: -207.41
Best: 207.13 

30 days later:
Avg: 20.58
Worst: -218.45
Best: 263.56