In a note to investors earlier today, Citigroup analyst Kenneth Wong stated that, in its history, Voxeljet has only provided loans to three of the 52 companies that bought its printers. Wong calls this "an acceptable ratio." Moreover, the analyst thinks concerns about these loans are priced into the stock. However, he kept a Neutral rating on the shares. PRICE ACTION: In early trading, Stratasys jumped 3.5% to $116, 3D Systems (DDD) climbed 2.5% to $71.30, ExOne (XONE) rallied 3.6% to $54.60, and Voxeljet gave back 9.5% to $35.45.