According to the ETF Finder at ETF Channel, DDD makes up 2.59% of the First Trust Technology AlphaDEX Fund ETF (FXL) which is up by about 0.1% on the day Wednesday.
In afternoon trading Wednesday, DDD was up about 2.2% on the day.
GE's purchases could drive additional 3-D printing M&A activity. But they also mean 3-D printer makers will be dealing with another deep-pocketed competitor.
U.S. Stocks held slight gains through the afternoon after weaker U.S. services activity pushed back the chances of a September interest rate hike.
Weaker chances of a rate hike when the Federal Reserve meets in two weeks left Wall Street in a bright mood on its return from the long Labor Day weekend.