Direct Answer
Market cap vs. fully diluted valuation (FDV) compares two ways of pricing a token: market cap reflects what the market values the circulating supply at today, while FDV prices every token that will ever exist as if it were already circulating. A large gap between the two signals significant future dilution from tokens still to be unlocked or minted. Comparing tokens on market cap alone, without checking FDV, can understate real future supply pressure.
Key Takeaways
- The market cap to FDV ratio (equivalently, circulating ÷ max supply) is a screening filter, not a buy/sell signal, a low ratio warrants a closer look at unlock schedules and vesting cliffs.
- Tokens with no maximum supply, such as Ethereum post-Merge, can't have an FDV calculated with the standard formula; total supply or a modeled emission schedule serves as a proxy instead.
- A high market cap doesn't imply safety or fundamental value, it should always be evaluated alongside FDV, trading volume, and tokenomics.
- When demand doesn't keep pace with newly circulating supply, unlocking tokens exert downward price pressure regardless of how strong the FDV ratio looked earlier.
What Is Market Cap?
Market cap = current price × circulating supply. It estimates the total market value of tokens actually in circulation. It's the most common size comparison between crypto assets, but it only reflects what's currently tradable, not the full picture of potential future supply.
What Is Fully Diluted Valuation?
FDV = current price × maximum supply. It's the theoretical total market value if every token that could ever exist were circulating at today's price, sometimes called fully diluted market cap. FDV assumes the current price holds even as all remaining supply enters circulation, which it may not. It's a ceiling estimate, not a prediction.
Example: $3 price × 500 million circulating = $1.5 billion market cap. $3 × 2 billion max = $6 billion FDV. The FDV is 4× the market cap, meaning 75% of maximum supply has yet to enter circulation.
Why the Gap Between Market Cap and FDV Matters
A large FDV gap signals future dilution risk. All the supply not yet circulating will enter the market at some point, through team vesting, investor unlocks, ecosystem rewards, staking emissions, or protocol incentives. When that supply arrives, demand must keep pace or the price faces downward pressure.
| Market Cap / FDV Ratio | What it means |
|---|---|
| More than 0.80 | Most supply already circulating; limited future dilution from unlocks. |
| 0.50-0.80 | Significant supply still locked; monitor unlock schedules. |
| 0.25-0.50 | Less than half of max supply circulating; future emissions may be substantial. |
| Less than 0.25 | Potentially large overhang, the market is implicitly pricing most supply at current levels. |
These are screening thresholds, not buy/sell signals. Context, vesting timelines, inflation rate, demand drivers, always matters more than the ratio alone.
What If There Is No Maximum Supply?
Some tokens (like Ethereum post-Merge, or governance tokens with perpetual staking rewards) have no hard maximum supply. FDV using the max-supply formula cannot be calculated. In these cases: use total supply as a proxy, model the emission schedule over 5-10 years, and compare annual issuance to trading volume and staking demand. Annual inflation rate becomes the key number to watch.
Using the FDV Ratio Correctly
The FDV ratio (market cap ÷ FDV, or equivalently circulating ÷ max supply) is most useful as a starting filter. A low ratio tells you to look closely at unlock schedules and vesting cliffs. A high ratio tells you the dilution risk is already largely baked in. Neither tells you whether the token is cheap or expensive on its own, you also need to assess utility, demand, and the inflation and emissions rate.
Frequently Asked Questions
What is fully diluted valuation in crypto?
FDV is the theoretical total market value if every token that could ever exist were circulating at the current price, calculated as price × maximum supply.
Is a high FDV always bad?
Not automatically. FDV is most concerning when large amounts of non-circulating supply are scheduled to unlock soon, relative to current trading volume and demand.
What is a good market cap to FDV ratio?
A higher ratio (market cap closer to FDV) means most supply is already circulating. A ratio below 0.25 means more than 75% of maximum supply has yet to enter circulation.
Can FDV be calculated if there is no maximum supply?
If a token has no defined maximum supply, FDV cannot be calculated using the max-supply formula. Total supply or a projected supply figure is sometimes used instead.
Is market cap a good indicator of a crypto's value?
Market cap is a useful size comparison tool but a poor standalone value indicator. Two coins with the same market cap can have very different liquidity, token unlock schedules, and community activity. A high market cap coin is generally harder to manipulate and more liquid than a low-cap coin, but high market cap does not imply safety or fundamental value. Always evaluate market cap alongside FDV, trading volume, tokenomics, and on-chain activity.
How does FDV treat tokens that will not be minted for years?
Identically to tokens that exist today, which is its central weakness. Fully diluted valuation multiplies the current price by the maximum supply, with no discounting for the time until those units appear and no allowance for the possibility that they never do. A token releasing the remainder of its supply over a decade and one releasing it next quarter can show the same FDV while presenting completely different near-term supply pressure. Reading FDV alongside the emission schedule is what restores the missing dimension.
Why can a token's market cap change without its price moving?
Because market cap is price multiplied by circulating supply, and the supply term moves on its own schedule. A vesting release, a staking reward distribution or a change in an aggregator's view of which holdings count as circulating all increase the figure with no trade taking place. This is why a chart of market cap and a chart of price can tell different stories over the same period, and why comparing a token's market cap across a year that included large unlocks requires knowing what the supply did.
Is FDV comparable across tokens with different emission speeds?
Not directly. FDV asks what the project would be worth if every token existed at today's price, which puts two projects on the same measure only if their remaining supply arrives on similar timelines. A slow emission gives demand time to develop against new supply; a fast one does not. Comparing FDV across tokens is most defensible within a group whose schedules are broadly similar, and otherwise needs the schedule alongside it as context rather than as a footnote.
How should FDV be adjusted if part of the supply has been burned?
The burned amount should be removed from the maximum supply used in the calculation, because those units can never be issued. Whether a data provider does this varies, and the two burn mechanisms behave differently in the underlying data: a contract burn reduces recorded total supply automatically, while tokens sent to an unspendable address remain counted unless the provider excludes them by hand. An FDV computed from an unadjusted maximum supply overstates the future dilution by the entire burned amount.