He is also a freelance financial writer on a wide variety of topics. Bloomberg/Getty Images The S&P 500—the Standard & Poor's 500 Index—is considered to be one of the best measures of U.S ...

Another Wall Street strategist sees the S&P 500 (^GSPC) gaining by a double-digit percentage over the next year. On Monday night, Goldman Sachs chief US equity strategist David Kostin initiated a ...

The S&P 500 Index will rise through the end of next year amid continued US economic expansion and earnings growth, according to Goldman Sachs Group Inc.’s chief equity strategist David Kostin.