The markets are shaping up for a flat 2015, after multiple years of double-digit growth in the S&P 500, but one expert expects the spark to return in 2016. ‘2015 is a year where a lot has changed, but little has moved in the form of the indices,’ said Darrell Cronk, president of Wells Fargo Investment Institute. From the Federal Reserve’s historic rate hike to the slide in crude prices, 2015 ended significantly different than it started, even though stocks went nowhere. ‘Equities across the board are largely flat and fixed income is flat,’ Cronk said. ‘If we ended in negative territory for both of those, it would be the first year since 1990.’ But Cronk thinks the market is too negative on stock prices. He expects the S&P 500 to reach 2,230-2,330 in 2016, representing a 7.7-12.5 percent gain from the broad index’s current level of 2,071. TheStreet’s Scott Gamm has details from Wall Street.