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

Radius Health, Inc. (symbol: RDUS) was one of the worst losers of the
trading day today (2016-01-27), losing -11.21%. The number of shares that
changed hands was 945,125, or about 1 times the average daily volume in the
stock.
The closing price was $31.14, amounting to a market cap of $1,340,000,000,
about -63.21% off the highest price in the last 12 months. The stock has
been trading at a range between $28.76 and $84.64.
RDUS is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2014.