$HD Dark Cloud Cover Pattern 
Daily appearances since 2010-01-19: 79
Performance (Close) 5 days later ±:
Avg: 1.21
Worst: -5.98
Best: 11.35 

10 days later:
Avg: 0.86
Worst: -54.30
Best: 15.27 

30 days later:
Avg: 2.01
Worst: -46.38
Best: 21.76