When everyone was pumping the stock from between $12-18 you heard all the little guys predict the price would go to $20 soon because of insider buying. Then when it fell to $10 and slightly under, all the posters disappeared and for about a week it traded in the $10-10.60 range and 95% of the posters disappeared. That means these guys were wiped out and probably sold all their margined positions. Now, unexpectedly it runs up and no one was here to buy it at the low.
That is how the market makers and traders take people's money.
All the little guys bought higher and on margin and the market makers forced them to sell out by keeping it around $10 for a week. Now, they are buying again and the people wiped out don't have the money to buy.