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

QLogic Corporation (symbol: QLGC) was one of the worst losers of the
trading day today (2015-07-31), losing -22.06%. The number of shares that
changed hands was 7,209,145, or about 7 times the average daily volume in
the stock.
The closing price was $8.87, amounting to a market cap of $773,990,000,
about -4.73% off the highest price in the last 12 months. The stock has
been trading at a range between $8.37 and $9.31.
QLGC is in the Computer Communications Equipment industry, part of the
Technology sector.
Looking at its valuation, the stock is now trading at 15.56 times earnings.