This week, 15 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”).

Winmark Corporation (WINA) gets a higher grade this week, advancing from a C last week to a B. Winmark Corporation is a franchisor of four value-oriented retail store concepts that buy, sell, trade and consign merchandise. For more information, get Portfolio Grader’s complete analysis of WINA stock.

Burlington Stores, Inc. (BURL) is seeing ratings go up from a B last week to a A this week. The company also gets A’s in operating margin growth, earnings growth, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of BURL stock.

Ross Stores, Inc. (ROST) improves from a B to a A rating this week. Ross Stores, Inc. runs chains of stores that sell discounted products, including apparel, jewelry and home accessories. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of ROST stock.

Genesco Inc. (GCO) shows solid improvement this week. The company’s rating rises from a C to a B. Genesco Inc. engages in the retail and wholesale of footwear, apparel, and accessories. The company also gets A’s in earnings growth, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of GCO stock.

Dick’s Sporting Goods, Inc. (DKS) boosts its rating from a B to a A this week. Dick’s Sporting Goods, Inc. is a retailer of sports and athletic apparel and equipment. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of DKS stock.

This week, Best Buy Co., Inc.’s (BBY) ratings are up from a B last week to a A. Best Buy Co., Inc. is a retailer that specializes in selling appliances, consumer electronics, home office products, and software. The company also gets A’s in earnings revisions, earnings surprise, and return on equity. For more information, get Portfolio Grader’s complete analysis of BBY stock.

This week, Five Below, Inc. (FIVE) pushes up from a C to a B rating. Five Below, Inc. operates as a specialty value retailer in the United States, which offers various products priced at $5 and below. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of FIVE stock.

This is a strong week for Shoe Carnival, Inc. (SCVL). The company’s rating climbs to B from the previous week’s C. Shoe Carnival, Inc. is a family footwear retailer. For more information, get Portfolio Grader’s complete analysis of SCVL stock.

Aaron’s, Inc.’s (AAN) ratings are looking better this week, moving up to a B from last week’s C. Aaron’s, Inc. sells rental, and lease ownership of residential and office furniture, consumer electronics, and home appliances and accessories. The company also gets A’s in free cash flow. For more information, get Portfolio Grader’s complete analysis of AAN stock.

The rating of Zumiez Inc. (ZUMZ) moves up this week, rising from a B to a A. Zumiez Inc. is a specialty retailer of action sports related apparel, footwear, equipment and accessories through stores mainly in shopping malls across the United States and Canada. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of ZUMZ stock.

Finish Line, Inc. Class A (FINL) earns a B this week, jumping up from last week’s grade of C. Finish Line, Inc. Class A is a specialty retailer of men’s, women’s and children’s brand name athletic and leisure footwear, activewear, and accessories. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of FINL stock.

This is a strong week for Party City Holdco, Inc. (PRTY). The company’s rating climbs to B from the previous week’s C. The company also gets A’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of PRTY stock.

The rating of Boot Barn Holdings, Inc. (BOOT) moves up this week, rising from a C to a B. Boot Barn Holdings, Inc. designs, develops, manufactures, and markets protective footwear and rainwear. For more information, get Portfolio Grader’s complete analysis of BOOT stock.

Tilly’s, Inc. Class A (TLYS) improves from a B to a A rating this week. Tilly’s, Inc. Class A engages in the retailing of casual clothing, footwear, and accessories for teens and young adults in the United States. The company also gets A’s in earnings growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of TLYS stock.

Destination Maternity Corporation (DEST) earns a B this week, jumping up from last week’s grade of C. Destination Maternity Corporation designs and sells maternity apparel in the United States through a nationwide chain of speciality stores. For more information, get Portfolio Grader’s complete analysis of DEST 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.