24/7 Wall St.

Short interest in the two-week period ending December 15 fell for two of the four 3D printing companies we follow and rose for the other two. For all four, the share price fell by double-digits in the two-week period, The stocks have lost at least 40% since the beginning of the year, and one is down about double that. All four stocks posted new 52-week lows in the first two weeks of December.

Short interest in 3D Systems Corp. (NYSE: DDD) rose 1.9% to 37.4 million shares. Some 35.5% of the company’s stock is short. Days to cover rose to 16. In the two-week short interest period, the share price fell about 21% and is down about 67% for the year to date, as of Wednesday’s close. The stock’s 52-week range is $27.46 to $97.28, and shares closed at $30.54 on Wednesday.

Stratasys Ltd. (NASDAQ: SSYS) saw short interest rise 14.6% in the first two weeks of December to 10.27 million shares, or about 23.4% of the company’s float. Days to cover fell to nine. Shares fell nearly 18% in the two-week period and closed at $81.12 on Wednesday. The stock’s price has dropped nearly 40% for the year to date, and the 52-week range is $76.60 to $138.10.

Short interest in The ExOne Co. (NASDAQ: XONE) fell 0.7% to 3.85 million shares. About 42.5% of the company’s shares are now short. Shares of ExOne slumped nearly 31% in the two-week period and ended Wednesday at $15.32, down about 75% year-to-date. The stock’s 52-week range is $14.91 to $70.25, and days to cover fell to 11.

Voxeljet A.G. (NYSE: VJET) saw short interest drop 17.6% to 2.19 million shares, with days to cover falling to six. Year to date, shares are down about 81%, and they fell about 30% in the two-week period to December 15. The stock closed at $7.29 on Wednesday night, in a 52-week range of $7.13 to $47.98.

ALSO READ: The 5 Most Shorted Nasdaq Stocks in Mid-December