Crypto Market Cap, Circulating Supply, Liquidity & How Coins Are Ranked
It’s not just about the price, it’s about the math behind the madness.
What Is Market Cap in Crypto?
In crypto, market cap (short for market capitalization) is a way to measure the total value of a cryptocurrency. It's calculated with a simple formula:
Market Cap = Current Price × Circulating Supply
For example, if a coin is worth £2 and there are 10 million coins in circulation, the market cap is £20 million.
Market cap gives a general sense of a coin’s size, importance, and influence within the crypto ecosystem. It's how Bitcoin became known as the “king” of crypto, it has the highest market cap by far. But here's the catch: market cap isn't a perfect indicator of value, strength, or safety. It can be manipulated by limiting circulating supply or using artificially inflated prices. So, use it as a guide, not gospel.
What Is Circulating Supply?
Circulating supply is the number of coins or tokens currently available to the public and actively trading in the market. This excludes any coins that are locked, burned, staked, or held by the project team (and not yet released).
This number matters because it directly affects price. If there’s a low circulating supply and demand rises, the price tends to shoot up faster. But some projects purposely release tokens slowly over time to manage inflation.
Knowing the circulating supply helps you avoid coins with low float, high hype situations, where a tiny bit of supply makes a coin look more valuable than it really is.
It’s basically:
How many coins are actually out there and available?
The higher the circulating supply, the more diluted the value per coin can be, unless there's huge demand.
Price Doesn’t Mean Everything
Let’s compare two hypothetical coins:
Coin A Coin B
Price £0.50 £500
Circulating Supply 10 Billion 10,000
Market Cap £5 Billion £5 Million
Even though Coin B has a high price, Coin A is worth more overall in the market.
Don’t fall for “cheap = it’ll 100x easily!”, price alone means nothing without supply and demand context.
What Is Liquidity?
Liquidity is how easily a coin or token can be bought or sold without significantly affecting its price. A coin with high liquidity has lots of buyers and sellers, so trades happen quickly and at stable prices. Low liquidity means bigger price swings and a tougher time selling.
Think of liquidity like this:
High liquidity = popular, active, less risk of slippage
Low liquidity = ghost town, big price jumps, harder exits
Liquidity often depends on exchange volume, market demand, and number of trading pairs. It's one of the most underappreciated metrics for beginners, but it really matters if you're planning to trade or cash out.
What’s the Difference Between Total Supply & Max Supply?
Total supply is the number of coins created so far, including those held by the team, staked, or not yet in circulation.
Max supply is the maximum number of coins that will ever exist.
For example:
Bitcoin has a total supply of ~19.7 million and a max supply of 21 million.
Ethereum doesn’t have a max supply, it’s inflationary.
Why it matters: Coins with no max supply may keep printing tokens indefinitely, which could dilute your holdings over time. But having a max cap like Bitcoin helps maintain scarcity, which is one reason people see it as “digital gold.”
How Are Coins Ranked?
Coins are usually ranked by market cap, from highest to lowest. That’s why Bitcoin is #1, Ethereum is #2, and so on.
Other ranking sites (like CoinGecko or CoinMarketCap) also let you sort by:
- Price
- Volume
- Supply
- Performance
- Category (DeFi, AI, stablecoin, etc.)
But rankings can be misleading. Some tokens are artificially boosted by marketing or volume wash trading. A high rank doesn’t always mean a coin is safe, useful, or legit, it just means it’s getting attention.
A £0.0001 coin with trillions in supply can still rank high.
Watch Out for These Red Flags
Here are a few signs you should treat a coin or project with extreme caution:
- No clear use case – If the project can’t explain what problem it solves, walk away.
- Anonymous team – Pseudonyms are fine, but total anonymity?
- Low liquidity – If nobody’s trading it, you could be stuck.
- Massive token supply – Trillions of tokens can make big price jumps nearly impossible.
- Centralized control – If one wallet holds most of the supply, it can tank the market.
- No audit – If the smart contract hasn’t been audited, it could be buggy, or worse.
- Hype only from influencers – If the project is all tweets and no substance, be skeptical.
- Pump-and-dump chart – Sudden spike and crash? Probably a rug pull.
Always DYOR (Do Your Own Research) and never invest in something just because it’s trending.
Understanding market cap, supply, and liquidity is like learning to read crypto’s body language. These aren’t just numbers on a screen, they tell the story of a coin’s past, present, and potential future.
As the crypto space matures, it’s easier than ever to get lost in buzzwords and trends. But the real edge comes from understanding the fundamentals behind those trends.
Before you invest, always ask:
- What does this coin actually do?
- Who controls it?
- Is it backed by a solid community and real development?
- And most importantly, does the math add up?
Remember: crypto isn’t just about hype. It’s about value. And once you can read the signs, you’re already miles ahead of the crowd.
Always check supply before dreaming of moons.
Speaking of red flags, lets look into common scams & staying safe.
