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

Gigamon Inc. (symbol: GIMO) was one of the biggest winners of the trading
day today (2015-10-23), gaining 21.56%. The number of shares that changed
hands was 1,539,821, or about 3.9 times the average daily volume in the
stock.
The closing price was $27.23, amounting to a market cap of $912,640,000,
about -21.75% off the highest price in the last 12 months. The stock has
been trading at a range between $13.11 and $34.8.
GIMO is in the EDP Services industry, part of the Technology sector. It
first went public in 2013.