$KLAC is one of biggest winner #stocks today. read more:

KLA-Tencor Corporation (symbol: KLAC) was one of the biggest winners of the
trading day today (2015-10-21), gaining 18.79%. The number of shares that
changed hands was 24,232,451, or about 14.4 times the average daily volume
in the stock.
The closing price was $63.98, amounting to a market cap of $10,080,000,000,
about -24.02% off the highest price in the last 12 months. The stock has
been trading at a range between $44.95 and $84.21.
KLAC is in the Electronic Components industry, part of the Capital Goods
sector. It first went public in 1980.
Looking at its valuation, the stock is now trading at 28.56 times earnings.