Marvell Technology, Inc. (NASDAQ:MRVL) is quiet Thursday. It rallied almost 8% yesterday after reporting earnings that exceeded estimates. But the rally may be over already. This is why Marvell is our Stock of the Day.Some people believe that stock prices are driven by a company's financials and fundamentals. They think that if a company has strong earnings and promising prospects, the stock will move higher.This is not always true. Most of the movement of a stock is the result of the emotions and psycholog ...