This week, six Specialty Retail stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Williams-Sonoma (NYSE:WSM) is bumping up its rating from a C (“hold”) to a B (“buy”) this week. Williams-Sonoma is a retailer of home products, mainly culinary and serving equipment. In Portfolio Grader’s specific subcategory of Equity, WSM also gets an A. The stock price has risen 5.5% over the past month, better than the 4.2% increase the S&P 500 has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of WSM stock.

This week, Signet Jewelers (NYSE:SIG) pushes up from a C to a B rating. Signet Jewelers is engaged in retailing of jewelry, watches and gifts with branches throughout UK and US. Wall Street seems to agree with the upgrade and has propelled the stock up 6.3% over the past month. For more information, get Portfolio Grader’s complete analysis of SIG stock.

Sally Beauty (NYSE:SBH) improves from a C to a B rating this week. Sally Beauty Holdings distributes and retails beauty products. For more information, get Portfolio Grader’s complete analysis of SBH stock.

Zale Corp. (NYSE:ZLC) gets a higher grade this week, advancing from a C last week to a B. Zale is a specialty retailer of fine jewelry that it sells through jewelry stores kiosks located mainly in shopping malls throughout the United States, Canada and Puerto Rico. For more information, get Portfolio Grader’s complete analysis of ZLC stock.

This week, Christopher & Banks (NYSE:CBK) is showing good progress as the company’s rating jumps from a B (“buy”) last week to an A (“strong buy”). Christopher & Banks run retail stores in the United States that sell women’s apparel. Investors seem to agree with the upgraded status of the stock, and have pushed the stock up 13.7% over the past month. For more information, get Portfolio Grader’s complete analysis of CBK stock.

This week, Haverty Furniture’s (NYSE:HVT) ratings are up from a B last week to an A. Haverty Furniture sells home furnishings. Wall Street has pushed the stock higher by 8.3% over the past month. For more information, get Portfolio Grader’s complete analysis of HVT 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.