How do I simulate an index fund?

Open this page and use the live Dividend Discount Model tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive an index fund from your own measurements.

Use case · powered by Dividend Discount Model

Dividend Discount Model for an index fund

Simulate an index fund live in your browser. This runs the real Dividend Discount Model solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Dividend Discount (Gordon)Live

valuing a dividend stock

Controls

Presets

Next dividend D₁ ($)

Dividend growth g (%)

Required return r (%)

The Gordon growth model prices a stock as P = D₁/(r − g): next year's dividend divided by the gap between your required return and the dividend growth rate. As growth nears the discount rate the value shoots up — which is why the model is so sensitive. Educational tool, not financial advice.

▶ Run in Python

Data Inspector

Fair value$40.00

Implied dividend yield5.00%

Governing equation

P = \frac{D _{1}}{r - g} = \frac{2.00}{0.0900 - 0.0400} = $40.00

Reading this result: Fair value P = D₁/(r − g) = $40.00 rests on a 5.00-point gap; note the 5.0% yield plus 4% growth recovers your 9% required return.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Dividend Discount Model tool models an index fund with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Dividend Discount Model

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Other ways to simulate an index fund

Black-Scholes for an index fund Option Payoff for an index fund Monte Carlo (GBM) for an index fund Efficient Frontier for an index fund Value at Risk for an index fund Bond Pricing for an index fund

Frequently asked questions

How do I simulate an index fund?: Open this page and use the live Dividend Discount Model tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive an index fund from your own measurements.