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

Bruker Corporation (symbol: BRKR) was one of the worst losers of the
trading day today (2016-08-03), losing -11.85%. The number of shares that
changed hands was 4,864,030, or about 4 times the average daily volume in
the stock.
The closing price was $21.79, amounting to a market cap of $3,540,000,000,
about -27.0% off the highest price in the last 12 months. The stock has
been trading at a range between $15.78 and $29.85.
BRKR is in the Biotechnology: Laboratory Analytical Instruments industry,
part of the Capital Goods sector.
Looking at its valuation, the stock is now trading at 31.08 times earnings.