The swoon in shares of 3D Systems (DDD -10.7%) may be attributed to a Seeking Alpha post...

|About: 3D Systems Corp. (DDD)|By:, SA News Editor

The swoon in shares of 3D Systems (DDD -10.7%) may be attributed to a Seeking Alpha post claiming the ambiguity of the 3D printing market makes DDD, which has gained more than 260% in the last year, overvalued. Stratasys (SSYS -8.2%) has emerged as a formidable competitor in the 3D printing space, but its shares also trade lower in sympathy. Also, PRCP -11.4%.