Crypto Market Cap vs FDV: How to Read Token Supply
Understand circulating supply, total supply, market capitalization, and fully diluted valuation—and what these token metrics leave out.
In brief
Crypto market capitalization usually multiplies a token’s price by its reported circulating supply. Fully diluted valuation applies the current price to a broader supply figure, often total or maximum supply. Both are estimates that depend on data definitions and do not measure available liquidity.
- Market cap and FDV use different supply figures, so check how a data source defines them.
- FDV is a snapshot calculation, not a forecast of a future price or token value.
- Neither market cap nor FDV tells you how much liquidity is available to trade.
What market capitalization measures
Crypto market capitalization is commonly calculated as:
Token price × reported circulating supply = market capitalization
The result is a snapshot based on a quoted price and a supply estimate. It is not the amount of money invested in a project or the amount of cash available to buy every token at that price. A price from a small or thinly traded market may be applied to a much larger supply.
For example, if a token trades at $2 and a source reports 10 million tokens in circulation, the reported market capitalization is $20 million. That arithmetic does not say whether there is enough liquidity for a large holder to sell near $2.
Circulating, total, and maximum supply
Data providers use supply labels to describe different quantities. In general, circulating supply is the amount a provider considers available in the market; total supply includes tokens already created, less tokens that have been verifiably removed; and maximum supply is a stated cap where the token design has one.
Definitions and estimates can differ. Locked tokens, vesting schedules, unreleased allocations, burns, and changes to token contracts can make supply harder to classify. Check the data provider’s methodology and, when possible, compare it with project disclosures and onchain records. A contract’s reported supply is useful evidence, but it does not always explain which holders can sell or when.
What fully diluted valuation means
Fully diluted valuation, or FDV, estimates a token’s valuation if a broader supply were valued at the current price. A provider may use total supply or maximum supply, so check its formula before comparing figures.
Using the example above, if the token has a reported total supply of 100 million, applying the same $2 price gives an FDV of $200 million. This is a hypothetical calculation. It assumes the current price can be applied to the additional tokens, even though price and market conditions can change as supply becomes available.
If a token has no defined maximum supply, an FDV figure based on maximum supply may not be available. For an inflationary token, the supply estimate depends on the time horizon or method a data source chooses.
Why a large gap needs context
A large difference between market cap and FDV can indicate that the supply used in the FDV calculation is much larger than the reported circulating amount. It does not tell you when tokens will be released, who controls them, or whether they will be sold.
Look for a documented unlock or emission schedule, the size of upcoming distributions, and the recipients where those details are available. Then consider concentration and current liquidity separately. The guide to liquidity and price impact explains why a valuation metric cannot estimate the price impact of an actual order.
Treat the figures as estimates
Token data websites may report different circulating supplies and valuations because their inputs and definitions differ. A chart, market cap, or FDV should be checked against the token’s actual network and mint or contract address. Do not compare two projects using figures from different sources without checking that the underlying supply methods are comparable.
These metrics can help organize research, but none establishes that a token is fairly valued or likely to rise. For a broader research checklist, see what to check before trading a memecoin. Zily’s trading tools can help bring market information into one workflow; verify the specific metrics and data sources shown in the product you use.
When comparing research products, see token discovery tools for the market data each one makes available.