Free tool
Valuation Calculator: what could this share be worth?
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Valuation calculator
Adjust the sliders to see how a company’s potential value changes with investor expectations.
Implied market value
Source: company accounts (last 12 months reported) and share prices via Perplexity Finance. Data as of ; next update . companies.
If this company were valued like…
Side by side
The numbers behind the markers. Margins are shares of revenue. Multiples divide market value by the last 12 months of revenue or earnings, or by the latest book value. Foreign companies’ figures are converted to US dollars.
Members only
The full Valuation Calculator is free to Great Investments Programme members
The sample above values Nvidia. Members can:
- Value any of 1,800+ US-listed companies, including UK and European giants listed in New York
- Compare against up to eight companies of their choice, not just Microsoft, Nvidia and Apple
- Switch between sales, earnings and book value, for any year to 2031
- Share a link to any valuation they have set up
- Get fresh data every quarter, after each reporting season
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How to use it well
Three numbers drive any valuation
How big the business gets (revenue), how much of that it keeps (margin) and what investors will pay for each pound or dollar of profit (the multiple). Change one and the answer moves in proportion.
Multiples shrink as growth slows
A company growing 50% a year can command 40 or 50 times sales. Few keep that up. If you give a company a giant’s revenue, ask whether it would still deserve a young company’s multiple.
Pick the right yardstick
Sales suits fast-growing companies with thin or no profits. Earnings suit mature, profitable businesses. Book value suits banks and insurers, whose assets are mostly money.
Today’s price already assumes a future
Set the sliders to today’s figures and you get roughly today’s value. The question is not whether a company is good, but whether it can beat what the price already expects. “Worth paying now” shows what a future price is worth today if you want a given return each year.
Want a second opinion on what your shares are priced for? A free portfolio review looks at what you hold, how concentrated it is and the risks you may be missing.
Get a free portfolio reviewData: Perplexity Finance. Revenue and profit are totals for the last four reported quarters (half-years for some foreign companies); net debt and book value are from the latest balance sheet. Market values and share prices are closing prices on 12 November 2026; figures for companies reporting in other currencies are converted to US dollars at that day’s exchange rates. The implied share price assumes today’s share count. Refreshed every quarter, after each reporting season. Education only, not financial advice. Past performance is not a reliable indicator of future results. See also Mag6 Watch and Markets this week.