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

Alere Inc. Common Stock (symbol: ALR) was one of the worst losers of the
trading day today (2016-11-04), losing -14.52%. The number of shares that
changed hands was 5,502,734, or about 8 times the average daily volume in
the stock.
The closing price was $36.1, amounting to a market cap of $3,130,000,000,
about -33.31% off the highest price in the last 12 months. The stock has
been trading at a range between $31.47 and $54.13.
ALR is in the Biotechnology: In Vitro & In Vivo Diagnostic Substances
industry, part of the Health Care sector.