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

Alder BioPharmaceuticals, Inc. (symbol: ALDR) was one of the biggest
winners of the trading day today (2016-08-22), gaining 9.57%. The number of
shares that changed hands was 1,712,692, or about 2.7 times the average
daily volume in the stock.
The closing price was $33.31, amounting to a market cap of $1,670,000,000,
about -24.06% off the highest price in the last 12 months. The stock has
been trading at a range between $15.82 and $43.87.
ALDR is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2014.