Behind BMO Capital's Belski bull case: 'S&P 500 will reach 4,200 by end of 2021'
CNBC's Scott Wapner talks with Brian Belski of BMO Capital about his bullish call on the outlook for 2021 and why he's so optimistic. Belski expects the S&P 500 to reach 4,200 by the end of next year. He says valuations are not that extreme and BMO's sector upgrades for industrials and financials. The firm upgraded industrials to overweight.