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

Helix Energy Solutions Group, Inc. (symbol: HLX) was one of the biggest
winners of the trading day today (2016-04-20), gaining 8.65%. The number of
shares that changed hands was 3,310,003, or about 1.9 times the average
daily volume in the stock.
The closing price was $7.91, amounting to a market cap of $835,080,000,
about -54.36% off the highest price in the last 12 months. The stock has
been trading at a range between $2.6 and $17.33.
HLX is in the Oilfield Services/Equipment industry, part of the Energy
sector.