$MRD is one of biggest losers #stocks today. read more:

Memorial Resource Development C (symbol: MRD) was one of the worst losers
of the trading day today (2016-02-03), losing -13.77%. The number of shares
that changed hands was 13,071,895, or about 8 times the average daily
volume in the stock.
The closing price was $13.28, amounting to a market cap of $2,560,000,000,
about -38.43% off the highest price in the last 12 months. The stock has
been trading at a range between $12.01 and $21.57.
MRD is in the Oil & Gas Production industry, part of the Energy sector. It
first went public in 2014.
Looking at its valuation, the stock is now trading at 10.41 times earnings.