2017 was another banner year for the stock market. 

The S&P 500 is on track to clock a gain of more than 20%, which would be its best year since 2013.

Top strategists expect the bull market to continue in 2018, albeit a little more muted. 

"I think we're absolutely going to expect a more muted return environment," said Kristi Mitchem, CEO of Wells Fargo Asset Management in an interview with TheStreet. "So if we think about 2018 - we're actually projecting returns of about 5-10% depending upon which market that we're looking at."

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