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

Geron Corporation (symbol: GERN) was one of the biggest winners of the
trading day today (2015-09-03), gaining 13.11%. The number of shares that
changed hands was 18,166,231, or about 7.7 times the average daily volume
in the stock.
The closing price was $3.45, amounting to a market cap of $545,590,000,
about -26.12% off the highest price in the last 12 months. The stock has
been trading at a range between $1.76 and $4.67.
GERN is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 1996.