This week, three packaged foods stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Westway Group (WWAY) is bumping up its rating from a C (“hold”) to a B (“buy”) this week. Westway Group provides bulk liquid storage and related value-added services worldwide. In Portfolio Grader’s specific subcategories of Earnings Growth and Earnings Momentum, WWAY also gets A’s. For more information, get Portfolio Grader’s complete analysis of WWAY stock.

Sunopta Inc. (STKL) shows solid improvement this week. The company’s rating rises from a C to a B. SunOpta is a global company focused on natural, organic and specialty foods and natural health products. Shares of the stock have been trading at an exceptionally rapid pace, up twofold from the week prior. For more information, get Portfolio Grader’s complete analysis of STKL stock.

Mead Johnson Nutrition Company (MJN) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. Mead Johnson Nutrition manufactures nutritional products for infants, children, and expectant and nursing mothers. For more information, get Portfolio Grader’s complete analysis of MJN 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.