The grades of four 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, Seneca Foods Corporation Class A (NASDAQ:SENEA) is showing significant improvement as the company’s rating hops from a C (“hold”) to a B (“buy”). Seneca Foods produces and distributes processed fruits and vegetables. In Portfolio Grader’s specific subcategories of Cash Flow and Margin Growth, SENEA also gets A’s. For more information, get Portfolio Grader’s complete analysis of SENEA stock.

This week, John B. Sanfilippo & Son, Inc. (NASDAQ:JBSS) is making solid headway. The company’s rating improves to an A (“strong buy”) from last week’s B (“buy”) rating. John B. Sanfilippo & Son processes, packages, markets, and distributes shelled nuts, in-shell nuts, and sesame sticks. Shares of JBSS have increased 6.2% over the past month, better than the 1.3% decrease the Nasdaq has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of JBSS stock.

Westway Group (NASDAQ:WWAY) boosts its rating from a C to a B this week. Westway Group provides bulk liquid storage and related value-added services worldwide. For more information, get Portfolio Grader’s complete analysis of WWAY stock.

This is a strong week for Hormel Foods Corporation (NYSE:HRL). The company’s rating climbs to A from the previous week’s B. Hormel Foods manufactures and markets consumer-branded meat and food products. For more information, get Portfolio Grader’s complete analysis of HRL 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.