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

Momenta Pharmaceuticals, Inc. (symbol: MNTA) was one of the biggest winners
of the trading day today (2016-01-08), gaining 6.78%. The number of shares
that changed hands was 1,793,412, or about 2.5 times the average daily
volume in the stock.
The closing price was $14.48, amounting to a market cap of $985,800,000,
about -43.35% off the highest price in the last 12 months. The stock has
been trading at a range between $10.22 and $25.56.
MNTA is in the Biotechnology: Biological Products (No Diagnostic
Substances) industry, part of the Health Care sector. It first went public
in 2004.