Many investors probably consider 3D printing a loser space. This is understandable since the group’s two best-known and longest publicly traded companies, 3D Systems ( NYSE:DDD ) and Stratasys ( NASDAQ:SSYS ), seem to have become experts at printing red ink. Their struggles growing revenue and turning a profit have resulted in their stocks performing poorly since peaking more than six years ago.

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But writing off the entire group is a mistake. The global market for 3D printing products and services is expected to reach $40 billion in 2024, for a compound annual growth rate of more than 26%, according to Statista. That’s just a little behind IDC’s estimate that the artificial intelligence market will grow at an average annual rate of about 28% from 2019 through 2023. (You can read my picks for the top AI stocks here .) Moreover, there are two lesser-known 3D printing stocks that […]

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