US-listed 3D printing firms 3D Systems and Stratasys both received a boost yesterday after a positive note from Citigroup analyst Kenneth Wong. In the note, Wong predicted that the 3D printing market could triple within the next five years. “We also expect to see increased utilisation of existing systems as customers start to extend use case beyond small batch digital manufacturing,” he wrote. He set a price target of $60 on 3D Systems and a target of $125 on Stratasys. Wong says 3D’s product line “is best positioned to capitalise on all three potential market opportunities (prototyping, manufacturing, consumer).” At Stratasys “sustainable margin expansion and earnings growth” will drive revenues, he said.