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

Advanced Micro Devices, Inc. (symbol: AMD) was one of the worst losers of
the trading day today (2016-10-21), losing -6.32%. The number of shares
that changed hands was 64,135,103, or about 2 times the average daily
volume in the stock.
The closing price was $6.52, amounting to a market cap of $5,190,000,000,
about -18.5% off the highest price in the last 12 months. The stock has
been trading at a range between $1.75 and $8.0.
AMD is in the Semiconductors industry, part of the Technology sector.