Four packaged foods 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”).

Seneca Foods Corporation Class A’s (SENEA) grade is moving up to a B (“buy”) this week from last week’s C (“hold”). 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.

John B. Sanfilippo & Son, Inc. (JBSS) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. John B. Sanfilippo & Son processes, packages, markets, and distributes shelled nuts, in-shell nuts, and sesame sticks. For more information, get Portfolio Grader’s complete analysis of JBSS stock.

Westway Group’s (WWAY) ratings are looking better this week, moving up to a B from last week’s C. Westway Group provides bulk liquid storage and related value-added services worldwide. For more information, get Portfolio Grader’s complete analysis of WWAY stock.

Hormel Foods Corporation (HRL) shows solid improvement this week. The company’s rating rises from a B to an A. 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.