Ross Stores (ROST) is climbing after Credit Suisse analyst Michael Exstein upgraded the stock to Outperform from Neutral in a note to investors earlier today. Ross Stores is benefiting from transitions at competitors J.C. Penney (JCP) and Kohl's (KSS), as well as recent bankruptcies by other discount retailers, including SYMS and Daffy's, Exstein wrote. Moreover, Exstein expects Ross Stores to launch an e-commerce initiative "sooner rather than later," as many of its peers have already done. An e-commerce strategy is becoming increasingly important for retailers, the analyst believes. Exstein increased his price target on the stock to $68 from $60 and named it a Top Pick for 2013. In early afternoon trading, Ross rose $1.92, or 3.24%, to $61.01.