Shares of Israel-based Nano Dimension Ltd. rocketed 88% in premarket trade Monday, after the 3D printer maker said it has become a certified vendor for the U.S. Department of Defense. That means the company can do business directly with the U.S. government. Separately, the company said it sold a second DragonFly 2020 Pro 3D printer to a U.S.-based defense contractor. "Now, as a recognized U.S. government additive manufacturing supplier for defense projects, our DragonFly 2020 Pro 3D printer may play a crucial role in projects such as keeping risks down and solving complex design challenges, while speeding the R&D process up significantly," said Chief Executive Amit Dror. The stock had tumbled 57% year to date through Friday, while the S&P 500 hs gained 3.9%.