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

Aduro Biotech, Inc. (symbol: ADRO) was one of the worst losers of the
trading day today (2016-06-22), losing -7.0%. The number of shares that
changed hands was 572,092, or about 1 times the average daily volume in the
stock.
The closing price was $10.23, amounting to a market cap of $660,970,000,
about -72.11% off the highest price in the last 12 months. The stock has
been trading at a range between $7.26 and $36.68.
ADRO is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2015.