The overall ratings of three fashion and apparel stocks are down on Portfolio Grader this week. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This week, Michael Kors Holdings Ltd (KORS) falls to a D (“sell”), worse than last week’s grade of C (“hold”). Michael Kors engages in the design, marketing, distribution and retailing of branded women’’s apparel and accessories, and men’’s apparel. For more information, get Portfolio Grader’s complete analysis of KORS stock.

The rating of Ralph Lauren Corporation Class A (RL) declines this week from a C to a D. Ralph Lauren designs, markets and distributes products, including apparel for men, women and children, accessories, fragrances and home furnishings. To get an in-depth look at RL, get Portfolio Grader’s complete analysis of RL stock.

Oxford Industries, Inc.’s (OXM) rating falls this week to an F (“strong sell”), down from last week’s D (“sell”). Oxford Industries is an international manufacturer and wholesale marketer of branded and private label apparel for men, women, and children. The stock gets F’s in Earnings Growth and Earnings Surprise. Trade volume is up 562.8% from the previous week. For more information, get Portfolio Grader’s complete analysis of OXM 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.