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

Stratasys, Ltd. (symbol: SSYS) was one of the biggest winners of the
trading day today (2015-09-22), gaining 6.21%. The number of shares that
changed hands was 1,751,823, or about 1.2 times the average daily volume in
the stock.
The closing price was $30.62, amounting to a market cap of $1,580,000,000,
about -75.5% off the highest price in the last 12 months. The stock has
been trading at a range between $25.31 and $125.0.
SSYS is in the Computer peripheral equipment industry, part of the
Technology sector. It first went public in 1994.