Investors interested in Computer and Technology stocks should always be looking to find the best-performing companies in the group. Has 3D Systems (DDD) been one of those stocks this year? Let's take a closer look at the stock's year-to-date performance to find out.3D Systems is one of 624 companies in the Computer and Technology group. The Computer and Technology group currently sits at #3 within the Zacks Sector Rank. The Zacks Sector Rank includes 16 different groups and is listed in order from best to worst in terms of the average Zacks Rank of the individual companies within each of these sectors.The Zacks Rank is a proven model that highlights a variety of stocks with the right characteristics to outperform the market over the next one to three months. The system emphasizes earnings estimate revisions and favors companies with improving earnings outlooks. DDD is currently sporting a Zacks Rank of #2 (Buy).Within the past quarter, the Zacks Consensus Estimate for DDD's full-year earnings has moved 38.58% higher. This signals that analyst sentiment is improving and the stock's earnings outlook is more positive.According to our latest data, DDD has moved about 121.07% on a year-to-date basis. Meanwhile, the Computer and Technology sector has returned an average of 11.29% on a year-to-date basis. This means that 3D Systems is performing better than its sector in terms of year-to-date returns.To break things down more, DDD belongs to the Computer - Mini computers industry, a group that includes 4 individual companies and currently sits at #1 in the Zacks Industry Rank. On average, this group has gained an average of 30.41% so far this year, meaning that DDD is performing better in terms of year-to-date returns.Investors in the Computer and Technology sector will want to keep a close eye on DDD as it attempts to continue its solid performance.Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report 3D Systems Corporation (DDD): Free Stock Analysis Report To read this article on Zacks.com click here.