Strategist: Fear not. 10% rebound still ahead

A trader works on the floor of the New York Stock Exchange.
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Even though the U.S. stock market is off to one of its worst starts ever, one Wall Street strategist is holding fast to his belief that we are still in a secular bull market.

"For our part, we are not concerned yet. While volatility is likely to persist for the time being, we believe a strong rebound could be in store for U.S. stocks in the coming months based on trends in several indicators," BMO Capital Markets' Brian Belski wrote in a note to clients Friday.

Here is why he believes the will rally 10 percent from Friday's close to his price target of 2,100 by the end of 2016.