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

Diamond Offshore Drilling, Inc. (symbol: DO) was one of the biggest winners
of the trading day today (2016-09-08), gaining 8.95%. The number of shares
that changed hands was 6,927,044, or about 2.9 times the average daily
volume in the stock.
The closing price was $17.4, amounting to a market cap of $2,390,000,000,
about -34.88% off the highest price in the last 12 months. The stock has
been trading at a range between $14.18 and $26.72.
DO is in the Oil & Gas Production industry, part of the Energy sector. It
first went public in 1995.