Shares of Sun Life Financial Inc have gained 15 percent since the U.S. presidential election and are currently trading above the peer median. The stock now appears “fully valued,” Argus’s Jacob Kilstein said in a report. He downgraded the rating on Sun Life from Buy to Hold and suspended the price target.The company’s shares have outperformed the market over the past quarter, gaining 20 percent versus a 5 percent gain for the S&P 500. Shares have outperformed over the past year, rising 26 percent versus a 12 percent gain for the index.Read more