EXPLAINER
What market cap does not tell you about a cryptocurrency
Market cap is price multiplied by supply. Neither half is as solid as it looks, and the product is routinely over-interpreted.
Quick answer
Market cap is the last traded price multiplied by circulating supply. It is not money invested, not what the project is worth, and not an amount anyone could withdraw.
Market cap is the most quoted number in crypto and one of the most misread.
It is not money invested
A billion-dollar market cap does not mean a billion dollars went in. It means the last trade, possibly for a few hundred dollars, multiplied by every coin deemed to be circulating. A thin market can support a very large notional figure on very little actual capital.
Circulating supply is softer than it looks
Who decides what counts as circulating? Usually the project, following guidance that varies between data providers. Locked, escrowed, treasury and burned tokens are treated inconsistently. Two reputable sites can publish different market caps for the same asset on the same day.
Fully diluted valuation
FDV uses total eventual supply instead. Where FDV is dramatically higher than market cap, a large quantity of tokens is scheduled to arrive, and the difference between the two numbers is roughly the size of the future supply overhang. That is the most useful single thing market cap can tell you, and it only appears when you look at both.
What it is genuinely good for
Rough relative scale, and nothing more precise than that. Comparing a top-ten asset with a hundredth-ranked one is meaningful. Comparing ranks 40 and 45 is noise.
Related reading
- How to evaluate a new coin launch in fifteen minutes — A short checklist for new tokens: supply and unlocks, who is funded, what it does that an existing
- How to read a crypto whitepaper and what to skip — Most whitepapers are marketing with equations. Four sections tell you almost everything; the rest is usually decoration.
- Why crypto prices fall overnight, and how to tell a reason from a coincidence — Most overnight moves have a liquidity explanation rather than a news one. How to work out what actually
Key takeaways
- Market cap is not capital invested — a common and expensive misreading.
- Circulating supply figures are self-reported and inconsistent.
- Fully diluted valuation reveals what the token table is hiding.
Risk notice
Cryptocurrency prices are volatile and you can lose the full value of a position. Nothing here is a price prediction or a recommendation to buy or sell. Do your own research.
Frequently asked questions
Is a low market cap a buying opportunity?
Not by itself. A low market cap usually reflects the market's assessment rather than an oversight, and small caps are where liquidity problems are worst.
Why do sites disagree on market cap?
They apply different rules for what counts as circulating supply, and they take prices from different venues.
