The grades of three Specialty Retail stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Vitamin Shoppe (NYSE:VSI) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. Vitamin Shoppe is a specialty retailer and marketer of nutritional products. In Portfolio Grader’s specific subcategories of Earnings Growth and Margin Growth, VSI also gets A’s. Shares of the stock are up 0.6% from last month. For more information, get Portfolio Grader’s complete analysis of VSI stock.

Casual Male Retail Group (NASDAQ:CMRG) is making progress this week as its rating of C (“hold”) from last week increases to a B (“buy”) rating this week. Casual Mail Retail Group operates as a specialty retailer of big and tall men’s apparel in the United States, Canada, and Europe. The stock has a trailing PE Ratio of 4.8. CMRG shares have gone up 1.8% from a month ago. For more information, get Portfolio Grader’s complete analysis of CMRG stock.

Conn’s Inc. (NASDAQ:CONN) shows solid improvement this week. The company’s rating rises from a B to an A. Conn’s is a specialty retailer of home appliances and consumer electronics. Shares of CONN have increased 29.7% over the past month, better than the 3.7% increase the Nasdaq has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of CONN 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.