$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 (2016-07-27), losing -28.57%. The number of shares that
changed hands was 2,979,690, or about 3 times the average daily volume in
the stock.
The closing price was $31.47, amounting to a market cap of $2,710,000,000,
about -43.79% off the highest price in the last 12 months. The stock has
been trading at a range between $31.47 and $55.99.
ALR is in the Biotechnology: In Vitro & In Vivo Diagnostic Substances
industry, part of the Health Care sector.
Looking at its valuation, the stock is now trading at 8.31 times earnings.