A low price is not cheap: market cap and supply explained

A low price is not cheap. It is the sentence that separates beginners from people who have already lost money to it. The logic sounds fine: "bitcoin costs US$ 80,000 and will not double; this coin costs US$ 0.03 and, if it reaches US$ 1, I multiply by 30". The mistake is looking at the price of one unit without looking at how many units exist. This guide explains what market capitalization is, why it matters more than price, what circulating and max supply are, and how dilution erodes the investor who never looked. Figures are from CoinGecko on October 8, 2026.

In short

• What defines an asset's size is price times the number of units in circulation, the market capitalization. Unit price alone says nothing.
• For SHIB to reach US$ 1 it would need a market value larger than the entire world economy. The math takes two seconds and prevents most bad purchases.
• Circulating supply and max supply are different things. When many tokens are still to be issued, your slice will shrink.

The math that settles it

Market capitalization (market cap) is the price of one unit multiplied by the number of units in circulation. It is the value the market assigns to the whole asset, and it is the number that lets you compare coins with different unit prices.

Shiba Inu costs a few millionths of a dollar and is still worth, in total, US$ 3 billion. For it to reach US$ 1, its market cap would have to be US$ 589 trillion, about five times the GDP of the entire world. That is not an unlikely bet; it is an arithmetic impossibility. The right question is never "can the price go from US$ 0.03 to US$ 1?", but "can the total value of this project multiply by 30?". Multiplying a US$ 3 billion project by 30 means it would be worth US$ 90 billion, more than XRP is worth today.

By the same reasoning, bitcoin at US$ 80,000 is not "expensive". Doubling requires the market cap to go from US$ 1.63 trillion to US$ 3.3 trillion, which is a lot of money, but a magnitude that exists in the world (gold is worth close to ten times that). Expensive and cheap are measured in market cap and fundamentals, not in the price of one unit.

Why unit price misleads

The price of one unit is a choice made by whoever created the asset. A project can issue 21 million units, like bitcoin, or a quadrillion, like several memecoins. Slicing the same pie into more pieces makes each piece look cheap without changing the size of the pie. Projects that want to look "accessible" issue trillions of units on purpose.

There is a psychological bias at play: buying a million units of something feels like a better deal than buying 0.001 bitcoin, even when both cost the same US$ 80. Whoever sells a new token knows that. The post crypto scams: the 7 most common describes how that bias is used.

Circulating supply, total supply and max supply

Market cap uses circulating supply: the units that already exist and can be traded. But three numbers coexist.

• Circulating supply: what is on the market today.
• Total supply: what has been created, including locked units (team reserves, investors under vesting, the project's treasury).
• Max supply: the limit the protocol allows to be issued, when there is one. Bitcoin has 21 million; Ethereum and Dogecoin have no cap.

The gap between circulating and max is what will enter the market. XRP is the clearest example in the table: 63.1 billion in circulation out of a maximum of 100 billion. Market cap by circulating supply is US$ 85 billion; by max supply, what is called fully diluted valuation (FDV), it would be US$ 134.8 billion. The remaining 37 billion units, when they enter, split the same value into more slices.

Dilution: how your slice shrinks without the price falling

Imagine a token with 100 million units in circulation at US$ 1, a US$ 100 million market cap, and 900 million units locked for the team and early investors. The fully diluted valuation is US$ 1 billion. If over the next two years those units are released and the market keeps assigning US$ 100 million to the project, the price per unit trends to US$ 0.10. You did not sell, the project did not fail, and your investment fell 90%.

That is why, before buying any asset other than bitcoin, three questions: what is the circulating supply today, what is the max, and what is the release schedule for locked units. Serious projects publish this; projects that hide it have already answered.

Bitcoin is the extreme case on the other side: 20.1 million in circulation out of 21 million, with the remaining issuance spread over more than a century and cut in half every four years, as bitcoin halving explained covers. Near-zero future dilution is one reason it is treated as a reserve rather than a bet.

How to use this in practice

1. Ignore unit price. Look at market cap and compare with assets you know.
2. Do the "what if it reaches" math: multiply the target price by circulating supply and see whether the result is plausible.
3. Check max supply and the release schedule. An FDV far above market cap is dilution announced in advance.
4. Distrust any argument that starts with "it is cheap because it costs cents".

Market cap and dilution are the start of the analysis, not the end: they tell you an asset's size, not whether it has substance. Deciding what goes into the portfolio, in what proportion and when to rebalance is the work of Vault Capital's crypto advisory, a securities advisory firm authorized by Brazil's CVM under CVM Resolution 19/2021. Crypto assets carry high risk, including significant volatility and the possibility of losing the invested capital, and nothing in this text is a recommendation to buy or sell.

Frequently asked questions

Can a US$ 0.01 crypto reach US$ 1?

Multiply US$ 1 by the number of units in circulation and look at the total value that would require. For most penny coins, the result exceeds the value of all cryptocurrencies combined, which answers the question.

What is a cryptocurrency's market cap?

It is the price of one unit multiplied by the units in circulation: the value the market assigns to the whole asset. It is the correct measure for comparing assets with different unit prices.

What is the difference between circulating supply and max supply?

Circulating is what exists and can be traded today; max is the limit the protocol allows to be issued. The gap between them is future dilution: units still to enter the market and split the value into more slices.

Is bitcoin expensive at US$ 80,000?

Unit price cannot answer that. Bitcoin's market cap is US$ 1.63 trillion; whether that is expensive or cheap depends on what you expect that value to do, not on the number per unit. With 20.1 million of 21 million already in circulation, future dilution is minimal.

Let's talk

If you want to move from the "low price" criterion to an allocation criterion with method, Vault's diagnostic is free and carries no commitment, on WhatsApp, with a human advisor. Your assets always stay in your name.