â¿¿ Sherwin-Williams, the paint company, jumped 5.8 percent after announcing it will buy Consorcio Comex, a privately held rival based in Mexico City. Its stock rose $8.22 to $149.06.â¿¿ Best Buy leapt after announcing it had named a new finance chief, a former executive of the upscale kitchen store Williams-Sonoma. Analysts hope the new numbers cruncher can help turn around a chain that has struggled to keep up with online competitors. Best Buy's stock rose 55 cents, or 3.6 percent, to $15.85. ___ Daniel Wagner can be reached at www.twitter.com/wagnerreports.