Here are three stocks added to the Zacks Rank #5 (Strong Sell) List today:3D Systems (DDD) is a leading provider of 3D content-to-print solutions including 3D printers, print materials, on-demand custom parts services and 3D authoring solutions for professionals and consumers, worldwide. The Zacks Consensus Estimate for its current year earnings has been revised almost 11.1% downward over the last 60 days.ASGN (ASGN) provides IT and professional services in the technology, digital, creative, engineering and ...