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

Greatbatch, Inc. Common Stock (symbol: GB) was one of the worst losers of
the trading day today (2016-01-12), losing -11.61%. The number of shares
that changed hands was 746,719, or about 4 times the average daily volume
in the stock.
The closing price was $44.09, amounting to a market cap of $1,350,000,000,
about -30.23% off the highest price in the last 12 months. The stock has
been trading at a range between $43.05 and $63.19.
GB is in the Industrial Machinery/Components industry, part of the
Miscellaneous sector. It first went public in 2000.
Looking at its valuation, the stock is now trading at 36.74 times earnings.