Good for you if you made a profit playing the market. But most people who do that lose. Holding over 6 months or more is as safe a strategy as they come, and gives better ROI than anything else currently available.
Holding 6 months from 32 in June 2011 gave you a ROI of -94%.
Holding 6 months and then sell does not count as Buy and Hold. Holding it until now counts, and its ROI is more than 20000%.