History shows stocks could gain 5% at best this year, expert says

STORY: In 100 years of stock market data, "there's only been one period where we've had returns that exceeded 20% per year for four years in a row," Brown said."We've now had three years of 20%-plus returns for the U.S. market," she noted, adding that the S&P 500 is up about 5% so far this year."If history is any guide," she said, "we could reasonably see a market that ends up the year only 5% [higher] - so, essentially flat for the rest of the year."