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

Anacor Pharmaceuticals, Inc. (symbol: ANAC) was one of the worst losers of
the trading day today (2016-02-25), losing -4.32%. The number of shares
that changed hands was 940,131, or about 1 times the average daily volume
in the stock.
The closing price was $66.03, amounting to a market cap of $2,910,000,000,
about -57.92% off the highest price in the last 12 months. The stock has
been trading at a range between $42.55 and $156.93.
ANAC is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2010.