Market Cap vs Fully Diluted Valuation (FDV): What's the Difference?

Start with supply: circulating, total, and max

Before market cap or FDV make sense, you need three supply numbers that most tokens report. Circulating supply is how many coins are actually out in the world right now, sitting in wallets, on exchanges, or in liquidity pools, free to be bought or sold. Total supply is everything that's been created so far, including coins that exist but are locked, held in reserve, or not yet distributed. Max supply is the hard cap on how many coins will ever exist once every future emission, vesting unlock, and reward has been paid out (some tokens have no max supply at all and inflate indefinitely).

If any of this terminology is new, it's worth a quick detour to our crypto and trading glossary before continuing, since market cap and FDV both build directly on these supply definitions.

What market cap actually measures

Market cap is simple: current price multiplied by circulating supply. If a token trades at $2 and 500 million coins are circulating, the market cap is $1 billion. That number represents the total value of coins that are actually tradable today, the ones someone could theoretically buy up if they had enough money.

What market cap does not represent is the value of the entire eventual supply. It's a snapshot of what's live right now, not a forecast of what's coming. That distinction is exactly where a lot of new traders get tripped up.

What fully diluted valuation actually measures

Fully diluted valuation, usually shortened to FDV, is current price multiplied by max supply instead of circulating supply. It answers a different question: what would this token's total value be if every coin that will ever exist were already in circulation today, at today's price?

That includes tokens still locked in vesting contracts for the team and early investors, coins reserved for future mining or staking rewards, and anything else scheduled to unlock over the coming months or years. FDV is a hypothetical, since it assumes today's price holds steady while all that supply gets released, which rarely happens exactly that way. But it's still a useful ceiling to check against.

Why the gap between them matters

When FDV is only slightly higher than market cap, most of a token's eventual supply is already circulating, and there isn't much dilution left to worry about. When FDV is many times larger than market cap, it means a large share of the total supply hasn't hit the market yet.

That matters because unlocked tokens eventually get sold by someone, whether it's a team member, an early investor, or a staking reward recipient claiming their payout. New supply hitting the market creates sell pressure, and that pressure exists regardless of how much genuine demand there is for the token. A project can be growing in usage and still see its price grind down simply because unlocks keep adding new sellers faster than new buyers show up.

A simple hypothetical example

These numbers are made up to illustrate the concept, not real data from any actual token. Imagine two tokens, Token A and Token B, both trading at $1 with a market cap of $100 million.

• Token A has 100 million circulating supply and a max supply of 120 million. Its FDV is $120 million, only 20% above its market cap. Most of its supply is already out.
• Token B has 100 million circulating supply but a max supply of 1 billion. Its FDV is $1 billion, ten times its market cap. Only 10% of its eventual supply exists today.

Both tokens look identical by market cap alone. But Token B has 900 million more coins scheduled to unlock at some point, and every one of those coins is a potential future seller. Token A, with its narrow gap, has far less future dilution hanging over it. All else being equal, that makes Token A the lower-risk holding from a pure supply standpoint, even though the two looked the same on the surface.

The "cheap looking" trap

This shows up constantly with newer token launches. A project launches with a tiny circulating supply, maybe just 5% of its eventual max supply, which keeps the market cap low and the price looking approachable. A trader glances at a $20 million market cap and assumes there's plenty of room to grow.

Check the FDV, though, and it might be $400 million or more. That's the real fully-unlocked valuation the market is pricing the project at, and it's a much less flattering number. The low market cap wasn't cheap, it was just a small slice of a much bigger pie, with the rest scheduled to arrive over the next few years and dilute existing holders as it does.

The practical takeaway

Never judge whether a token is "cheap" from market cap alone. Pull up both numbers side by side, and if you're considering holding for more than a quick trade, look at the actual unlock schedule too (most project documentation or tokenomics pages publish one). A token unlocking 2% of supply per month behaves very differently than one with a single 40% cliff unlock six months out.

A wide market cap-to-FDV gap isn't automatically a dealbreaker. Plenty of legitimate projects have long vesting schedules for good reasons. But it's a risk factor you should know about going in, not something to discover after the price has already been ground down by unlocks you didn't see coming. For live prices and market data while you're comparing tokens, the LabelYX Markets Hub is a good place to look. And if you're still getting comfortable with the basics of what you're trading, our guide to what cryptocurrency actually is is a solid starting point.