$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 (2015-11-30), gaining 13.59%. The number of shares that
changed hands was 9,638,817, or about 3.5 times the average daily volume in
the stock.
The closing price was $5.1, amounting to a market cap of $806,930,000,
about -2.11% off the highest price in the last 12 months. The stock has
been trading at a range between $2.6 and $5.21.
GERN is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 1996.