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

C&J Energy Services, Ltd. (symbol: CJES) was one of the biggest winners of
the trading day today (2015-08-28), gaining 22.14%. The number of shares
that changed hands was 7,811,047, or about 3.3 times the average daily
volume in the stock.
The closing price was $5.13, amounting to a market cap of $600,230,000,
about -83.73% off the highest price in the last 12 months. The stock has
been trading at a range between $2.97 and $31.54.
CJES is in the Oilfield Services/Equipment industry, part of the Energy
sector. It first went public in 2015.