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

Relypsa, Inc. (symbol: RLYP) was one of the biggest winners of the trading
day today (2015-12-04), gaining 30.56%. The number of shares that changed
hands was 15,782,247, or about 8.4 times the average daily volume in the
stock.
The closing price was $29.14, amounting to a market cap of $1,210,000,000,
about -31.05% off the highest price in the last 12 months. The stock has
been trading at a range between $10.26 and $42.26.
RLYP is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2013.