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

Gilead Sciences, Inc. (symbol: GILD) was one of the worst losers of the
trading day today (2016-07-26), losing -8.47%. The number of shares that
changed hands was 47,253,596, or about 5 times the average daily volume in
the stock.
The closing price was $81.05, amounting to a market cap of
$107,940,000,000, about -32.67% off the highest price in the last 12
months. The stock has been trading at a range between $77.92 and $120.37.
GILD is in the Biotechnology: Biological Products (No Diagnostic
Substances) industry, part of the Health Care sector. It first went public
in 1992.
Looking at its valuation, the stock is now trading at 6.92 times earnings.