What if I invested calculator

Reconstruct a hypothetical investment from the actual prices, share splits and cash dividends you supply.

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Hypothetical investment amount

Original purchase price per share

More inputs and assumptions

Later price per share

Total share-split multiplier

Cash dividends received per original share

Total buy/sell fees

Answer

…

Reconstruct a hypothetical investment from the actual prices, share splits and cash dividends you supply.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Saved scenario

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Formula and assumptions

No ticker, historical price feed or investment recommendation is implied. Fractional shares are allowed in the model. Use unadjusted purchase and later prices with the split multiplier; using split-adjusted prices as well would count splits twice. Dividends are cash per original share and are not reinvested. Taxes, inflation, rights issues and other corporate actions are excluded.

Automatic precision shows money to two decimal places and other numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-29

Using What if I invested calculator

Reconstruct a hypothetical investment from the actual prices, share splits and cash dividends you supply.

Next: Marketplace fee calculator

Next: Calculate ROI

A worked example

For hypothetical investment amount = 1000, original purchase price per share = 20, later price per share = 30, total share-split multiplier = 1, cash dividends received per original share = 2, total buy/sell fees = 0, hypothetical ending value = 1,600.00.

Before you use the result

Example results for hypothetical investment amount

These examples use Original purchase price per share: 20; Later price per share: 30; Total share-split multiplier: 1; Cash dividends received per original share: 2; Total buy/sell fees: 0. They are reference calculations, not recommended settings.

Hypothetical investment amount	Hypothetical ending value
500	800
1000	1,600.00
2000	3,200.00

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