$CERS is one of biggest winner #stocks today. read more:

Cerus Corporation (symbol: CERS) was one of the biggest winners of the
trading day today (2016-06-20), gaining 7.72%. The number of shares that
changed hands was 3,393,617, or about 3.2 times the average daily volume in
the stock.
The closing price was $6.14, amounting to a market cap of $624,500,000,
about -10.89% off the highest price in the last 12 months. The stock has
been trading at a range between $4.27 and $6.89.
CERS is in the Medical/Dental Instruments industry, part of the Health Care
sector. It first went public in 1997.