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

Ultragenyx Pharmaceutical Inc. (symbol: RARE) was one of the biggest
winners of the trading day today (2016-03-31), gaining 10.49%. The number
of shares that changed hands was 612,345, or about 0.8 times the average
daily volume in the stock.
The closing price was $63.31, amounting to a market cap of $2,460,000,000,
about -53.81% off the highest price in the last 12 months. The stock has
been trading at a range between $49.0 and $137.05.
RARE is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2014.