Three Computer and Personal Electronics stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

Immersion Corp. (NASDAQ:IMMR) ups its rating to a B (“buy”) this week after earning a C (“hold”) in the week before. Immersion develops and licenses hardware and software technologies that enable users to interact with computers using their sense of touch. The stock price has risen 14.7% over the past month, better than the 3.5% increase the Nasdaq has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of IMMR stock.

This week, Stratasys Ltd. (NASDAQ:SSYS) is showing good progress as the company’s rating jumps from a B (“buy”) last week to an A (“strong buy”). Stratasys makes three-dimensional printers and high-performance rapid prototyping systems for the office-based rapid prototyping and direct digital manufacturing markets. Wall Street has pushed the stock higher by 19.3% over the past month. For more information, get Portfolio Grader’s complete analysis of SSYS stock.

Datalink (NASDAQ:DTLK) is seeing ratings go up from a C last week to a B this week. Datalink analyzes, designs, implements, and supports information storage infrastructure that store, protect, and provide continuous access to information. Investors seem to agree with the upgraded status of the stock, and have pushed the stock up 8.5% over the past month. For more information, get Portfolio Grader’s complete analysis of DTLK stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.