tage202, I see 3 reasons:
1) the old trader's adage "buy on romor, sell on news"
2) look at the 150% gain in just 4 days, people are going to trade this and take profits. With this much volume 'technicals' work (buy & sell signals).
3) nothing goes straight up, nor straight down. This is a function of the 2 reasons above.
If there was news of a signed purchase order to sweeten the pot, the top before correcting would be much higher.