Market Cap vs Price: Why a Cheap Coin Isn't Necessarily Cheap

Market cap vs price: a coin’s price alone can’t tell you if it’s cheap. Learn how market cap and supply work, with a worked example and a quick checklist.

Why can’t price alone tell you if a coin is cheap?

A coin’s price is the cost of one unit. How much of the network that unit represents depends entirely on how many units exist. A coin priced at a fraction of a cent can be a bigger project, by value, than one priced in the hundreds of dollars.

The number that captures size is market capitalization. Major price-tracking sites calculate it the same way:

• Market cap = current price × circulating supply

Think of slicing a pizza. Cutting it into 10,000 slices makes each slice cheap, but the pizza stays the same size. Supply is the number of slices; market cap is the whole pizza. The pull toward owning many whole units instead of a fraction of one is sometimes called unit bias, and low unit prices play on it.

Worked example: the “cheap” coin that is actually bigger

Suppose two hypothetical coins:

• Coin A trades at $0.0045, with 600 billion units circulating.
• Coin B trades at $185, with 9.5 million units circulating.

Coin A’s market cap is $0.0045 × 600,000,000,000 = $2.7 billion. Coin B’s is $185 × 9,500,000 = $1,757,500,000, or about $1.76 billion. The coin that looks cheap is about 1.54 times larger.

Now suppose you put $1,000 into each. You get 222,222 units of Coin A or 5.41 units of Coin B. If either coin rises 10%, your $1,000 becomes $1,100. Owning more units gives you no extra upside: what matters is the percentage move, and the same percentage move means a bigger change in total value for the larger market cap. A 10% rise adds $270 million to Coin A’s market cap but $175.75 million to Coin B’s.

The $1 test: what would a price target require?

Low-priced coins often attract “what if it hits $1?” thinking. The math takes one line: multiply the target price by the supply.

For Coin A, $1 × 600 billion units is a $600 billion market cap, 222 times its current size, and that is before any new supply arrives. At its 1 trillion max supply, the fully diluted value at $1 would be $1 trillion. Turn the question around and a $10 billion market cap corresponds to about $0.0167 for Coin A or $1,052.63 for Coin B. We cover this reverse calculation step by step in our guide to price targets and implied market cap.

Which supply number should you use?

Price-tracking sites report three supply figures, and the choice changes the answer:

• Circulating supply: units available to the public. Tokens that are locked, allocated to insiders or not sellable on the public market are generally excluded.
• Total supply: all units that exist now, minus any verifiably burned.
• Max supply: the most units that will ever exist, minus burns.

Market cap uses circulating supply. Multiply the price by max supply instead and you get the fully diluted valuation, or FDV. In the example, Coin A’s FDV is $4.5 billion against a $2.7 billion market cap, because only 60% of its maximum supply circulates. Coin B’s FDV is $2.22 billion, with about 79% circulating. Our guides to circulating, total and max supply and FDV vs market cap go deeper.

Price is market cap divided by supply

Flip the formula and you get a useful way to think about price: price = market cap ÷ circulating supply. That makes it clear that price can move even when nothing about the project’s total value changes.

Example: Suppose Coin A’s circulating supply grows from 600 billion to 750 billion units over a year as locked tokens are released, a 25% increase. If its market cap stays at $2.7 billion, the price falls from $0.0045 to $0.0036, a 20% drop. Just to hold the old price, the market cap would have to rise 25%, to $3.375 billion.

The effect works in reverse, too. If a burn removed 5% of the circulating supply and the market cap stayed the same, the price would rise by about 5.26%, because each remaining unit represents a slightly bigger slice. In both cases, holders who look only at price miss the reason it moved.

This is why supply schedules belong in any comparison. Two coins with the same market cap today can face very different price pressure if one has large unlocks ahead and the other has a fixed supply. The drop in price per unit is dilution, not necessarily a sign that interest in the project fell.

What market cap does not tell you

Market cap is a useful size gauge, but it is still just price × supply:

• It is not money invested. The price of the latest trade is applied to every unit, so a market cap can be far larger than the money that ever flowed in, especially when few units trade.
• It can hide a thin float. Suppose a token has 1 billion units in total but only 50 million circulating at $2. Its market cap is $100 million, while its FDV is $2 billion, 20 times larger, and future unlocks can add supply.
• It says nothing about liquidity. A big market cap with thin trading can still be hard to exit at the quoted price; see crypto liquidity risk.
• Supply can shrink as well as grow. Burns reduce supply and raise each unit’s share of the total, but they do not create value by themselves; see token burns explained.

A checklist before calling any coin cheap

• Compare market caps, not unit prices.
• Check circulating supply against max supply, and note the FDV.
• Look for scheduled unlocks or ongoing emissions that will add supply.
• Check trading volume and order book depth, not just the headline market cap.
• Run the $1 test, or any target, as price × supply, and ask whether the result is plausible next to projects of similar size.
• Measure any result as a percentage and in dollars after fees, using the method in our guide to crypto profit and loss.

The bottom line

A coin’s price is the cost of a slice, not the size of the pizza. Compare market caps rather than prices, check how much supply is still to come, and translate any price target into the market cap it implies before calling a coin cheap.

This content is for education only and is not financial, investment, tax or legal advice. Crypto assets are volatile and you can lose money. Examples use hypothetical numbers. See our disclaimer and editorial policy.