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

Halcon Resources Corporation Co (symbol: HK) was one of the worst losers of
the trading day today (2016-11-29), losing -9.93%. The number of shares
that changed hands was 541,426, or about 1 times the average daily volume
in the stock.
The closing price was $8.53, amounting to a market cap of $778,360,000,
about -91.89% off the highest price in the last 12 months. The stock has
been trading at a range between $6.9 and $105.17.
HK is in the Oil & Gas Production industry, part of the Energy sector.