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

Calumet Specialty Products Part (symbol: CLMT) was one of the worst losers
of the trading day today (2016-02-18), losing -12.03%. The number of shares
that changed hands was 1,734,767, or about 3 times the average daily volume
in the stock.
The closing price was $10.82, amounting to a market cap of $819,720,000,
about -62.87% off the highest price in the last 12 months. The stock has
been trading at a range between $10.53 and $29.14.
CLMT is in the Integrated oil Companies industry, part of the Energy
sector. It first went public in 2006.