[Top 20 US stock turnover: Analysts say Tesla should maintain a $400 price target; Amazon's share price will be higher if it is forced to split] Tesla closed up 1.56%, trading $32.144 billion. Morgan Stanley analyst Adam Jonas reiterated his "overweight" rating on Tesla and maintained his $400 price target. Amazon closed up 0.9 percent at $7.837 billion. DA Davidson analyst Tom Forte said in a research note that if Amazon were forced to split up due to antitrust regulations, he believes Amazon's stock would be worth more, not less.