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

Antero Resources Corporation Co (symbol: AR) was one of the worst losers of
the trading day today (2016-06-29), losing -3.39%. The number of shares
that changed hands was 3,764,572, or about 1 times the average daily volume
in the stock.
The closing price was $26.51, amounting to a market cap of $7,350,000,000,
about -23.29% off the highest price in the last 12 months. The stock has
been trading at a range between $18.5 and $34.56.
AR is in the Oil & Gas Production industry, part of the Energy sector. It
first went public in 2013.
Looking at its valuation, the stock is now trading at 13.62 times earnings.