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

Kaiser Aluminum Corporation (symbol: KALU) was one of the worst losers of
the trading day today (2016-10-20), losing -9.61%. The number of shares
that changed hands was 619,067, or about 4 times the average daily volume
in the stock.
The closing price was $71.3, amounting to a market cap of $1,270,000,000,
about -25.78% off the highest price in the last 12 months. The stock has
been trading at a range between $70.14 and $96.06.
KALU is in the Metal Fabrications industry, part of the Capital Goods
sector.
Looking at its valuation, the stock is now trading at 14.41 times earnings.