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

3D Systems Corporation Common S (symbol: DDD) was one of the worst losers
of the trading day today (2016-08-31), losing -8.98%. The number of shares
that changed hands was 5,232,262, or about 2 times the average daily volume
in the stock.
The closing price was $14.5, amounting to a market cap of $1,630,000,000,
about -26.62% off the highest price in the last 12 months. The stock has
been trading at a range between $6.0 and $19.76.
DDD is in the Computer Software: Prepackaged Software industry, part of the
Technology sector.