3D printing stocks were some of the most shorted companies in the 2015 stock market. Not exactly a vote of confidence, because when investors believe companies will drop in value, they borrow shares, sell them at their current price with the promise that they'll buy them back for the issuer by a certain date. If the stocks fall in value, they reap profits on the difference.
2016 is turning out to be a different story however.
According to 24/7 Wall Street, short positions for Stratasys, 3D Systems and Voxeljet - all publicly traded 3d printing companies - were down in June by an average of nearly 4%.
"Short interest in Voxeljet AG (NYSE: VJET) decreased by 3.6%, 24/7 Wall Street reports, while Stratasys Ltd. (NASDAQ: SSYS) saw short interest fall by 5.9% in the first two weeks of June to about 8.54 million shares" and "Short interest in 3D Systems Corp. (NYSE: DDD) fell by 2.2% to 26.36 million shares."
Short interest in ExOne however, was up 2.8% in early June.
As ThreeDMaterials pointed out last week, year to date performance for some 3d printing stocks is outperforming the S&P by a wide margin - including 3D Systems, which is up nearly 35% YTD - although there have clearly been recent selloffs, including Stratasys which is down nearly 8% in the last month.