The grades of three Packaged Foods stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, Lancaster Colony (NASDAQ:LANC) is showing significant improvement as the company’s rating hops from a C (“hold”) to a B (“buy”). Lancaster Colony produces and markets consumer products with a focus on specialty food products for the retail and foodservice markets. In Portfolio Grader’s specific subcategory of Equity, LANC also gets an A. For more information, get Portfolio Grader’s complete analysis of LANC stock.

J&J Snack Foods (NASDAQ:JJSF) earns a B this week, jumping up from last week’s grade of C. J & J Snack Foods manufactures, markets, and distributes a variety of snack foods and beverages for the food service and retail supermarket industries. The stock price has risen 8.2% over the past month, better than the 0.6% decrease the Nasdaq has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of JJSF stock.

SunOpta (NASDAQ:STKL) gets a higher grade this week, advancing from a C last week to a B. SunOpta is a global company focused on natural, organic and specialty foods and natural health products. Wall Street has pushed the stock higher by 5.9% over the past month. For more information, get Portfolio Grader’s complete analysis of STKL 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.