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

Shutterstock, Inc. Common Stock (symbol: SSTK) was one of the worst losers
of the trading day today (2016-11-04), losing -10.82%. The number of shares
that changed hands was 1,319,310, or about 4 times the average daily volume
in the stock.
The closing price was $48.4, amounting to a market cap of $1,690,000,000,
about -25.72% off the highest price in the last 12 months. The stock has
been trading at a range between $25.44 and $65.16.
SSTK is in the EDP Services industry, part of the Technology sector. It
first went public in 2012.
Looking at its valuation, the stock is now trading at 72.35 times earnings.