SAN FRANCISCO – Voxeljet AG made a notable public debut Friday, as the 3D printing technology company's shares nearly doubled on their first day of trading. Freidberg, Germany-based Voxeljet climbed 77%, to $23.16 a share, after the company priced 6.5 million shares at $13 each. Voxeljet has earlier expected to price its IPO in a range of $13 to $15 a share. Among other 3D printing stocks, ExOne Co. shares rose 2%, 3D Systems Corp. was off by 1.7% and Stratasys Inc. fell 1%.
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