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

The Medicines Company (symbol: MDCO) was one of the biggest winners of the
trading day today (2015-08-31), gaining 21.88%. The number of shares that
changed hands was 16,659,482, or about 12.8 times the average daily volume
in the stock.
The closing price was $41.0, amounting to a market cap of $2,700,000,000,
about -0.07% off the highest price in the last 12 months. The stock has
been trading at a range between $19.92 and $41.03.
MDCO is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2000.