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

Groupon, Inc. (symbol: GRPN) was one of the biggest winners of the trading
day today (2016-04-04), gaining 9.44%. The number of shares that changed
hands was 28,642,077, or about 2.0 times the average daily volume in the
stock.
The closing price was $4.29, amounting to a market cap of $2,520,000,000,
about -43.1% off the highest price in the last 12 months. The stock has
been trading at a range between $2.15 and $7.54.
GRPN is in the Advertising industry, part of the Technology sector. It
first went public in 2011.
Looking at its valuation, the stock is now trading at 134.06 times earnings.