The run isn't over for the long-term bull market, with signs of a "spring thaw" happening in the economy, BlackRock's Russ Koesterich told CNBC Thursday.
"If the economy improves in the back half of the year as we expect, I do think that stocks can move higher in 2014," he told "Street Signs."
Stocks ended mixed on Thursday, with the S&P 500 closing down after coming within two points of its record close.
Although Koesterich thinks stock prices will continue to rise, he said it will not be at the pace of 2013. He also isn't concerned about the potential of rising bond yields thwarting the momentum.