The grades of three Machinery stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

Kubota (NYSE:KUB) is making progress this week as its rating of C (“hold”) from last week increases to a B (“buy”) rating this week. Kubota manufactures industrial machinery, farm machinery, and fluid piping systems. In Portfolio Grader’s specific subcategory of Earnings Growth, KUB also gets an A. Shares of KUB have increased 4.2% over the past month, better than the 4% increase the S&P 500 has seen over the same period of time. Shares of the stock have been changing hands at an unusually rapid pace, three times the rate of the week prior. For more information, get Portfolio Grader’s complete analysis of KUB stock.

Toro Co. (NYSE:TTC) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. Toro is a designer, manufacturer and marketer of professional turf maintenance equipment and services, turf and agricultural micro-irrigation systems, landscaping equipment and snow removal products. The price of TTC has increased 1.8% from a month ago. For more information, get Portfolio Grader’s complete analysis of TTC stock.

This week, Alamo Group (NYSE:ALG) pushes up from a C to a B rating. Alamo Group is a designer, manufacturer, distributor, and service provider for high-quality equipment for right-of-way maintenance and agriculture. Wall Street seems to agree with the upgrade and has propelled the stock up 0.8% over the past month. For more information, get Portfolio Grader’s complete analysis of ALG 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.