Using closing prices, from April 30th to May 21st, VATE is up 67.43%.
From May 10th to May 21st, VATE is up 59.33%.
A little pullback as gains are realized are natural. And don't forget there are folks that day trade this. I'm sure there are people out there that were buying at the intraday highs yesterday in the .053 to .057 range and are now cutting their losses.