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

Restoration Hardware Holdings, Inc.’s (RH) rating weakens this week, dropping to a F versus last week’s D. The company also gets F’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of RH stock.

This week, Buckle, Inc. (BKE) drops from a D to a F rating. Buckle, Inc. is a retailer of casual apparel, footwear, and accessories designed for young men and women. For more information, get Portfolio Grader’s complete analysis of BKE stock.

Slipping from a D to a F rating, Staples, Inc. (SPLS) takes a hit this week. Staples, Inc. operates a chain of retail stores that sells office supplies to individuals and businesses. The company also gets F’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of SPLS stock.

This is a rough week for Tandy Leather Factory, Inc. (TLF). The company’s rating falls to D from the previous week’s C. Tandy Leather Factory, Inc. is a specialty retailer and wholesale distributor of a broad product line. For more information, get Portfolio Grader’s complete analysis of TLF 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.