$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 (2016-07-06), losing -8.81%. The number of shares that
changed hands was 1,934,689, or about 10 times the average daily volume in
the stock.
The closing price was $8.8, amounting to a market cap of $505,390,000,
about -38.72% off the highest price in the last 12 months. The stock has
been trading at a range between $8.26 and $14.36.
NVDQ is in the Biotechnology: Electromedical & Electrotherapeutic Apparatus
industry, part of the Health Care sector.