A Tesla fan got evenmore bullishon Tuesday, despite the stock’s recent drop. Tesla shares are up in premarket trading, but an upbeat take from the analyst isn’t the only reason shares are on the move.New Street Research analyst Pierre Ferraguis a longtime Tesla bull. But that doesn’t mean he always rates shares Buy. He is willing to downgrade the stock to Hold when prices run ahead of what he believes is fair.The third reason Tesla shares are rising is China. Tesla delivered about 18,300 cars t