This week, the ratings of 4 Food & Staples Retailing stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

PriceSmart, Inc. (PSMT) experiences a ratings drop this week, going from last week’s C to a D. PriceSmart, Inc. owns and manages international merchandising businesses. The company also gets F’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of PSMT stock.

Slipping from a C to a D rating, Walgreens Boots Alliance Inc (WBA) takes a hit this week. For more information, get Portfolio Grader’s complete analysis of WBA stock.

Ingles Markets, Incorporated Class A’s (IMKTA) rating weakens this week, dropping to a D versus last week’s C. Ingles Markets, Incorporated Class A operates a supermarket chain in the southeastern United States. For more information, get Portfolio Grader’s complete analysis of IMKTA stock.

Rite Aid Corporation (RAD) declines this week from a C to a D. Rite Aid Corporation is a retail drugstore chain. The company also gets F’s in operating margin growth, earnings growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of RAD 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.