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

Gigamon Inc. Common Stock (symbol: GIMO) was one of the worst losers of the
trading day today (2015-07-24), losing -16.92%. The number of shares that
changed hands was 1,851,206, or about 4 times the average daily volume in
the stock.
The closing price was $26.56, amounting to a market cap of $881,260,000,
about -23.68% off the highest price in the last 12 months. The stock has
been trading at a range between $9.95 and $34.8.
GIMO is in the EDP Services industry, part of the Technology sector. It
first went public in 2013.