This week, the overall grades of 4 Specialty Retail stocks are lower, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

CarMax, Inc. (KMX) earns a D this week, moving down from last week’s grade of C. CarMax, Inc. is a retailer of used vehicles that also sells new vehicles under franchise agreements with Chrysler, General Motors, Nissan and Toyota. For more information, get Portfolio Grader’s complete analysis of KMX stock.

Best Buy Co., Inc. (BBY) declines this week from a C to a D. Best Buy Co., Inc. is a retailer that specializes in selling appliances, consumer electronics, home office products, and software. For more information, get Portfolio Grader’s complete analysis of BBY stock.

The Container Store Group, Inc. (TCS) experiences a ratings drop this week, going from last week’s D to a F. The company also gets F’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of TCS stock.

Pier 1 Imports, Inc.’s (PIR) rating weakens this week, dropping to a F versus last week’s D. Pier 1 Imports, Inc. retails decorative home furnishings, gifts, and related items. The company also gets F’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of PIR 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.