$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 (2016-12-01), losing -8.53%. The number of shares that
changed hands was 2,873,782, or about 3 times the average daily volume in
the stock.
The closing price was $48.8, amounting to a market cap of $1,760,000,000,
about -20.33% off the highest price in the last 12 months. The stock has
been trading at a range between $21.23 and $61.25.
GIMO is in the EDP Services industry, part of the Technology sector. It
first went public in 2013.
Looking at its valuation, the stock is now trading at 39.97 times earnings.