$ZFGN is one of biggest losers #stocks today. read more:

Zafgen, Inc. (symbol: ZFGN) was one of the worst losers of the trading day
today (2015-09-24), losing -7.35%. The number of shares that changed hands
was 570,300, or about 2 times the average daily volume in the stock.
The closing price was $40.56, amounting to a market cap of $1,100,000,000,
about -26.73% off the highest price in the last 12 months. The stock has
been trading at a range between $16.01 and $55.36.
ZFGN is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2014.