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

Allegheny Technologies Incorpor (symbol: ATI) was one of the worst losers
of the trading day today (2015-07-21), losing -13.56%. The number of shares
that changed hands was 7,950,788, or about 5 times the average daily volume
in the stock.
The closing price was $21.67, amounting to a market cap of $2,370,000,000,
about -52.33% off the highest price in the last 12 months. The stock has
been trading at a range between $21.61 and $45.46.
ATI is in the Steel/Iron Ore industry, part of the Basic Industries sector.
Looking at its valuation, the stock is now trading at 85.31 times earnings.