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

Cempra, Inc. (symbol: CEMP) was one of the worst losers of the trading day
today (2015-10-20), losing -11.59%. The number of shares that changed hands
was 3,206,754, or about 2 times the average daily volume in the stock.
The closing price was $17.62, amounting to a market cap of $773,110,000,
about -62.5% off the highest price in the last 12 months. The stock has
been trading at a range between $11.8 and $46.99.
CEMP is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2012.