$SPX Piercing Line Pattern 
Daily appearances since 2010-01-04: 40
Performance (Close) 5 days later ±:
Avg: 14.47
Worst: -97.64
Best: 96.01 

10 days later:
Avg: 29.56
Worst: -41.55
Best: 191.81 

30 days later:
Avg: -9.69
Worst: -572.64
Best: 186.00