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

Novadaq Technologies Inc (symbol: NVDQ) was one of the worst losers of the
trading day today (2016-01-14), losing -11.27%. The number of shares that
changed hands was 1,089,892, or about 3 times the average daily volume in
the stock.
The closing price was $12.2, amounting to a market cap of $685,630,000,
about -29.44% off the highest price in the last 12 months. The stock has
been trading at a range between $9.4 and $17.29.
NVDQ is in the Biotechnology: Electromedical & Electrotherapeutic Apparatus
industry, part of the Health Care sector.