$AMAG is one of biggest winner #stocks today. read more:

AMAG Pharmaceuticals, Inc. (symbol: AMAG) was one of the biggest winners of
the trading day today (2015-12-04), gaining 8.33%. The number of shares
that changed hands was 1,100,729, or about 0.7 times the average daily
volume in the stock.
The closing price was $29.14, amounting to a market cap of $1,010,000,000,
about -62.51% off the highest price in the last 12 months. The stock has
been trading at a range between $25.76 and $77.73.
AMAG is in the Major Pharmaceuticals industry, part of the Health Care
sector.
Looking at its valuation, the stock is now trading at 5.99 times earnings.