Zafgen continues its fall

Zafgen Inc. (NASDAQ:ZFGN) fell $6.40 (29%) to $15.75 on Tuesday, its second consecutive day of heavy losses. The obesity company tumbled $12.25 (36%) to $22.15 on Monday and has now lost 54% of its value, or $505.8 million in market cap, over the two-day period. The company did not respond to inquiries and issued no news releases.

Speculation ranged from a data surprise for weight loss therapy beloranib ( ZGN-440) to an M&A deal. ...