Just 10 stocks have accounted for a quarter of the 10-year bull market's return

By Thomas Franck

The bull market's historic 10-year run is due in large part thanks to the success of a handful of high-powered stocks, Goldman Sachs calculates.

Ten equities, including Apple, Amazon and Microsoft, account for nearly 25 percent of the S&P 500's rise since the bull market began on March 9, 2009, according to Goldman's chief U.S. equity strategist.

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