Circulating, total, and max supply: the three numbers behind a token
Max supply is the ceiling. Circulating supply is today. The gap between them is where dilution hides, and it is the number most buyers never check.
Open any token's listing page and you will see a small number that looks like good news: "only 8% of supply circulating." It reads like scarcity. Very often it is the opposite. It means more than nine tenths of the coins are sitting off to the side, waiting to be released into the same market you are about to buy into. The number that sounds reassuring is frequently the warning.
Almost every token you can buy reports three different supply figures, and they mean very different things. Confusing them is one of the most common and most expensive mistakes new buyers make. Here is what each one is, and which one actually decides whether you get diluted.
Circulating supply: what exists in the wild today
Circulating supply is the count of coins actually available to the public and trading right now. It deliberately leaves out coins that are locked in a vesting contract, reserved in a foundation treasury, or set aside for the team and not yet released. Data sites define it plainly: circulating supply is total supply minus team tokens, foundation tokens, and locked tokens.
This is the number that goes into market capitalization. Market cap is simply price multiplied by circulating supply, so it describes only the slice of the project that is live in the market today. It says nothing about the coins that have not arrived yet.
Total supply: everything minted, circulating or not
Total supply counts every coin that currently exists, whether or not it is trading. It includes the locked and reserved coins that circulating supply leaves out. It usually excludes coins that were permanently destroyed, or "burned," and it excludes coins that have not been created yet. If a project minted its full amount at launch and locked most of it for the team, its total supply will be large while its circulating supply stays small.
The distance between circulating and total is a schedule waiting to happen. Those locked coins are not decoration. They belong to someone, they usually unlock on a timetable, and when they do, they can be sold.
Max supply: the ceiling that may not be reached yet
Max supply is the hard cap: the most units that can ever exist. For a genuinely fixed-supply token that minted everything at once, max supply and total supply are the same from day one. For a token that issues new coins over time, like Bitcoin, max supply is a future ceiling the network is still climbing toward. Bitcoin's cap is twenty-one million; more than nineteen and a half million have been mined so far, and the rest arrive slowly over decades.
Max supply matters because it defines your worst case for dilution. If you own a fixed share today, max supply tells you the smallest that share can shrink to once every possible coin exists.
The supply that can hurt you is the supply that is not circulating yet.
The gap is the number nobody checks
Here is the move that protects you. Look at circulating supply next to max supply, and ask how much of the total is still waiting in the wings. A token with 8% circulating has 92% still to come. Every one of those future coins is a potential seller. Even if demand holds perfectly steady, more coins chasing the same demand means each coin is worth less. That is dilution, and it is baked into the schedule before you ever press buy.
There is a single figure that captures this, and most listing pages show it: fully diluted valuation, or FDV. Market cap is price times circulating supply. FDV is price times the maximum supply, the value the whole project would carry if every coin were already out. When FDV towers over market cap, the market is telling you that most of the coins, and most of the future selling pressure, have not landed yet.
Unlocks and vesting: the flood with a calendar
Those locked coins come out on a vesting schedule, often over months or years, sometimes in large scheduled "unlock" events. A good project publishes this schedule openly so you can see exactly when team and investor coins become sellable. When you see circulating supply well below total, the follow-up question is always: on what dates does the rest unlock, and who receives it? If you cannot find that answer, that itself is an answer.
Why Bitcoin looks different
Bitcoin is the clean case because it had no big pre-sale and no team allocation locked in a contract. Its coins are released to miners gradually, so its circulating supply sits very close to its total supply, and both climb slowly toward the twenty-one million cap. There is no hidden pile waiting to flood the market, because there was never a founder's stash to begin with. That is the opposite of a project where a sliver circulates and a mountain is locked. Same word, "supply," two completely different risk pictures.
How to check all three yourself
You do not have to trust a summary. For any token on a public chain, open its contract on a block explorer and read the total supply directly from the code. Compare it to the circulating figure a data site reports, and to the max supply the project claims. Then look at the holders list to see how concentrated those coins are, and hunt down the project's published vesting or unlock schedule. If a token claims a fixed max supply, confirm there is no function that can mint more. We walk through that mindset in reading a crypto project honestly, and what "fixed" really guarantees in what a fixed-supply cryptocurrency actually means.
A low circulating supply is not scarcity. It is a promise that more is coming, and the schedule is usually public if you look.
What honest looks like
The cleanest version of this is a token where all three numbers are the same and provably so. Bremo, documented at bremo.tech, mints its full twenty-one million at once with no mint function, no owner, and no admin keys, so circulating, total, and max are one number that cannot be raised, and the ERC-20 contract is verified on Etherscan for anyone to read. It also states plainly where it is not finished, including that its separate native chain still runs a single signer. That combination, one honest supply number and honest disclosure of what is not done, is the posture to hold every project to. Do not take this article's word for it, or that project's. Open the explorer and count.