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

Ultragenyx Pharmaceutical Inc. (symbol: RARE) was one of the worst losers
of the trading day today (2016-10-14), losing -6.97%. The number of shares
that changed hands was 598,673, or about 1 times the average daily volume
in the stock.
The closing price was $61.57, amounting to a market cap of $2,430,000,000,
about -47.43% off the highest price in the last 12 months. The stock has
been trading at a range between $46.52 and $117.12.
RARE is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2014.