S&P 500 Dollar-cost Average Calculator

Backtest dollar-cost averaged investments for one-month intervals for the S&P 500. S&P 500 inflation-adjusted monthly price data is from Nasdaq Data Link. Prices used by the calculator are from January 1905 through the present.

S&P 500 Dollar-cost Average Calculator
Initial Investment ($):
Recurring Monthly Investment ($):
Start Month:
Start Year:
End Month:
End Year:
Do not enter $ in any field.

All monthly closing prices are adjusted for splits, dividends and inflation.

The Initial Investment buys shares onr time in the first month.

The Recurring Monthly Investment buys shares one time in all succeeding months.

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