Embed Stock Returns Over Time

What an amount in one stock, fund or price file became between two dates: all at once, in equal amounts on a schedule, or after price falls, side by side. Free to use on any site, with one line of HTML and nothing to sign up for.

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Tool by smartfin.fyi

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<iframe src="https://smartfin.fyi/embed/simulator.html"
        width="100%" height="2200" style="border:0"
        title="Stock Returns Over Time" loading="lazy"></iframe>
<p style="font-size:12px;margin:6px 0 0">Tool by <a href="https://smartfin.fyi/simulator.html">smartfin.fyi</a></p>

Notes

It fills whatever width you give it, down to phone screens.
It follows your reader's light or dark mode automatically.
It does not track your visitors. No cookies, no analytics and no outside files. The stock, amount, dates and settings are sent to smartfin.fyi, which works out the result from daily closing prices in US dollars. If a visitor uses their own price file, it is read in their browser and only its dates and prices are sent to calculate the answer; they aren't stored.
A height of 2200 suits columns wider than about 700 pixels with all three ways showing. On narrower columns, or if your site uses larger text, use about 2900.
The credit line under the widget is optional. Keep it, delete it, or add rel="nofollow" to its link. The widget works the same either way.

Terms: there aren't many. Use it on any site, including commercial ones, at no cost. We may improve the calculator over time, so the embedded version can change. If it ever needs to be retired, this page will say so first.

The full version

The complete Stock Returns Over Time on smartfin.fyi adds the chart, each buy, what the figures mean and the full method.

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The full version

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