5 Stocks With Double-Digit Yields To Buy Before It's Too Late relif / Getty Images Since 1926, dividends have contributed approximately 32% of the total return for the S&P 500, while capital appreciations have contributed 68%. Therefore, sustainable dividend income and capital appreciation potential are essential for total return expectations.A recent study from the Hartford Funds, in collaboration with Ned Davis Research, found that dividend stocks delivered an annualized return of 9.18% over the past ha ...