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Historical investment calculator: what would your savings have become?

Here you can examine how an investment would have developed over a chosen historical period. Choose a supported index series, a starting amount and any regular deposits. The calculator uses the documented development of the period rather than a fixed annual return.

Applies to the amounts in this calculator.

Danish stock indices from Statistics Denmark. Price index: dividends are not included.

Bought at the end of the start month.

DKK

Bought at the end of every month from the start month to the month before the end month.

DKK

For example the fund's ongoing charges. Empty: no costs.

%

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Worked example
  • Index: Alle aktier (OMXC), jan. 1996–aug. 2026
  • Start year: 2016
  • Start month: January
  • End year: 2020
  • End month: December
  • Starting amount: 10,000.00 DKK
  • Deposit every month: 1,000.00 DKK
  • Annual costs: 0.5 %

Value at the end of december 2020

100,832 DKK

Paid in 69,000 DKK · gain 31,832 DKK · annual money-weighted return 13.45%

All shares (OMXC) went from 754 in januar 2016 to 1,216 in december 2020 (+61.3%).

Value at year end
YearIndexPaid inValue
2016 723 22,000 DKK 21,293 DKK
2017 836 34,000 DKK 36,911 DKK
2018 752 46,000 DKK 44,046 DKK
2019 946 58,000 DKK 68,393 DKK
2020 1,216 69,000 DKK 100,832 DKK

Price index: dividends are not included, so the value is lower than if dividends were reinvested. Purchases and value use the index value at the end of the month, so market holidays do not matter. 59 purchases, annual costs of 0.5% deducted every month. Tax and brokerage are not included. Historical figures are not a forecast of the future.

Source: Statistics Denmark, table MPK13 (stock indices at the end of the month).

Dividends and currency must be handled correctly

A price index describes something other than a total return index, in which dividends are included. The result tells you which series is used. Dividends must not be reinvested again if they are already included in the data.

With foreign investments, currency can affect the return in Danish kroner. The calculation therefore applies the relevant currency at each purchase and at the valuation when the chosen series requires it.

Guide to historical scenarios

Try several start dates

A period that begins just before a fall can look different from a period that begins after it. Try both shorter and longer periods, and look at the development along the way rather than only the final amount.

Understand the chosen purchase pattern

Monthly deposits buy at different historical levels. The calculator shows the rule used for purchase dates and closing days. Costs and tax are only included when the model says so.

Historical figures are not an expectation for the future. An index is not necessarily an investable product without costs either. Use the general investment calculator if you would rather try your own future scenarios. Periods without documented data are not shown as if the history existed.