Market Cap

When people compare cryptocurrencies, the price of a single coin can be misleading. A coin worth a few cents can actually be bigger than one worth hundreds of dollars. Market cap gives you a much clearer picture of a project's overall size and how it stacks up against others.

What Does Market Cap Mean?

Market cap is the total market value of all the coins of a cryptocurrency that are currently in circulation. It's calculated with a simple formula: market cap equals the current price multiplied by the circulating supply. If a coin trades at $2 and there are 50 million coins in circulation, its market cap is $100 million.

Think of a pizza. The price of one slice doesn't tell you how big the whole pizza is. A $5 slice from a small pizza cut into four pieces means a $20 pizza. A $1 slice from a giant party pizza cut into 100 pieces means a $100 pizza. Market cap measures the whole pizza, not just one slice.

How Market Cap Is Calculated

The formula is simple, but the numbers behind it deserve a closer look. The most important detail is which supply figure is used.

Circulating Supply

Circulating supply is the number of coins that are available and moving in the market right now. Standard market cap figures use this number. Coins that are locked, unreleased, or held in reserve are usually excluded.

Total and Maximum Supply

Total supply counts all coins that exist, including locked ones. Maximum supply is the most coins that will ever exist, if there's a limit. Bitcoin, for example, has a maximum supply of 21 million coins. Some cryptocurrencies have no maximum supply at all.

Fully Diluted Valuation

Fully diluted valuation (FDV) multiplies the current price by the maximum or total supply. It shows what the market cap would be if every coin were already in circulation. A large gap between market cap and FDV means many more coins could enter the market later, which is an important part of a project's tokenomics.

Market Cap Categories

Cryptocurrencies are often grouped by size. The exact cut-offs vary between sources, but the general ideas are consistent:

• Large-cap: The biggest, most established cryptocurrencies, like Bitcoin and Ethereum. They tend to be more liquid and somewhat less volatile than smaller coins.
• Mid-cap: Projects that have gained traction but still have room to grow or shrink significantly. They usually carry more risk than large caps.
• Small-cap: Newer or niche projects with smaller valuations. They can move dramatically in either direction and are generally the riskiest group.

Why Market Cap Matters

Market cap is one of the first numbers many people look at when researching a crypto. It helps in several ways:

• Comparing size: It shows how big a project is relative to others, regardless of the price per coin.
• Gauging risk: Smaller market caps often mean higher [volatility](/glossary/volatility) and more uncertainty.
• Understanding growth potential: It helps you think realistically about how much a coin's price could change.
• Tracking market share: Comparing Bitcoin's market cap to the whole market gives you [Bitcoin dominance](/glossary/bitcoin-dominance).

Common Market Cap Mistakes

Judging by Price Alone

A low price doesn't mean a coin is "cheap." Many beginners buy coins priced at fractions of a cent hoping they'll reach $1. But if the coin has trillions of tokens in circulation, reaching $1 would require a market cap larger than almost any asset in the world. Always look at market cap and supply together.

Ignoring Future Supply

A coin might have a modest market cap today, but if large amounts of tokens are scheduled to unlock, the extra supply can put pressure on the price. Check the token release schedule and the gap between market cap and FDV.

Treating Market Cap as Money Invested

Market cap isn't the amount of money that has flowed into a project. It's a snapshot based on the latest trade price. In thinly traded markets, a relatively small amount of buying can push the price, and therefore the market cap, much higher than the real money behind it.

How to Use Market Cap in Your Research

Market cap works best as one piece of a bigger picture. Combine it with trading volume, liquidity, supply details, the project's purpose, and its team. Reading the project's whitepaper and doing your own research will tell you far more than any single number.

Free price tracking websites and many exchanges show market cap, circulating supply, and FDV side by side, so you can compare projects quickly. Remember that market cap changes every second as prices move.

It also helps to compare projects within the same category. Measuring a new gaming token against Bitcoin tells you very little, but comparing it with similar gaming projects can show whether its valuation looks stretched or modest relative to its peers. Pair that with the habit of DYOR, and treat market cap as a starting point for questions rather than a final answer about whether a project is worth your money.

Useful Links

• Why does Bitcoin dominance matter?
• What is crypto investing for beginners?
• What is a crypto whitepaper?
• What are some useful crypto tools?