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

AMAG Pharmaceuticals, Inc. (symbol: AMAG) was one of the worst losers of
the trading day today (2016-08-10), losing -12.54%. The number of shares
that changed hands was 4,268,404, or about 5 times the average daily volume
in the stock.
The closing price was $22.31, amounting to a market cap of $771,440,000,
about -66.78% off the highest price in the last 12 months. The stock has
been trading at a range between $17.92 and $67.15.
AMAG is in the Major Pharmaceuticals industry, part of the Health Care
sector.
Looking at its valuation, the stock is now trading at 74.62 times earnings.