How to Read a Crypto Market
Price, market cap, volume, supply, dominance — what every number on a crypto market screen actually means, and how to read them together instead of in isolation.
Open any crypto market page for the first time and it can feel like a wall of numbers: price, a green or red percentage, market cap, volume, a jagged little chart. None of it means much until you know what each figure is actually measuring. This guide walks through every number you’ll see on a coin’s page and shows you how to read them together, so a market screen becomes a story rather than noise.
We’ll use real, unchanging concepts — not price predictions. The goal is to make you fluent in the language of a market table, whether you’re looking at Bitcoin, Ethereum, or a coin you’ve never heard of.
Price is the least useful number on its own
The first thing everyone looks at is price — and it’s the most misleading figure in isolation. A coin priced at $0.02 is not “cheaper” or “better value” than one priced at $40,000. Price per unit depends entirely on how many units exist, which is set by each project’s tokenomics. A project can choose to issue a billion tokens or a million; that decision alone changes the per-unit price by a factor of a thousand without changing the value of the network at all.
This is why comparing two coins by price tells you nothing. To compare the actual size of two networks, you need market capitalization.
Market cap: the real measure of size
Market cap is price multiplied by circulating supply — the number of coins currently available and in public hands. It answers the only sizing question that matters: what is the whole network worth right now?
A coin at $0.50 with 10 billion coins in circulation has a market cap of $5 billion. A coin at $2,000 with one million coins in circulation has a market cap of $2 billion. The cheaper-looking coin is the bigger network. Always read market cap before you read price.
One important nuance: circulating supply is not the same as maximum supply. Circulating supply is what exists today; maximum supply is the hard cap the protocol will ever allow. The gap between them is future inflation — coins that haven’t been issued yet. A coin can look small by market cap while having most of its supply still locked up and waiting to enter the market.
Fully diluted valuation and why the gap matters
To account for that future supply, markets also show fully diluted valuation (FDV): price multiplied by maximum supply, as if every coin that will ever exist were already trading. When FDV is far higher than market cap, a large share of the supply is still to come. That future issuance can dilute existing holders, much like a company printing new shares. Reading market cap and FDV side by side tells you how much of the network’s “shares” are already out in the open.
Volume: is anyone actually trading this?
Trading volume is the total value traded over a period, usually 24 hours. It’s the heartbeat of a market. High volume relative to market cap means a coin is liquid — you can buy or sell without moving the price much. Thin volume means low liquidity, and that has real consequences: your order can suffer heavy slippage, filling at a worse price than the screen quoted.
A useful habit is to compare volume to market cap. A multi-billion-dollar coin trading only a few thousand dollars a day should raise an eyebrow — the price on screen may not reflect a price you could actually transact at. Volume is also where you can spot genuine interest: a sudden, sustained jump in volume shows that real money is changing hands, not just a quoted price drifting.
Reading the percentage change
The green or red percentage is simply the price change over a window — 1 hour, 24 hours, 7 days. Each window tells a different story. A coin can be up over a day but down over a month. Zoom out before drawing conclusions; short windows are dominated by volatility — the normal, often dramatic, swinging of crypto prices — while longer windows reveal trend.
Volatility itself is worth respecting. Crypto assets routinely move several percent in a day, far more than most stocks. That’s neither good nor bad on its own; it’s a property of a young, 24/7, global market. It does mean that a single day’s percentage tells you very little about an asset’s character.
Rank and Bitcoin dominance: the market’s pecking order
Coins are ranked by market cap, so rank #1 is simply the largest network. Rank is a quick shorthand for relative size and, loosely, for how established and liquid an asset tends to be.
Zooming out to the whole market, Bitcoin dominance measures Bitcoin’s share of total crypto market cap. When dominance rises, money is concentrating in Bitcoin; when it falls, capital is often rotating into altcoins. It’s a single number that captures the mood of the entire market’s risk appetite.
Highs, lows, and context
The all-time high (ATH) and all-time low (ATL) frame where today’s price sits in the asset’s whole history. A price “70% below its ATH” instantly tells you the asset is in a deep drawdown; one near its ATH tells you it’s in price discovery. These anchors stop you from judging a number in a vacuum.
The market’s emotional temperature
Beyond any single coin, sentiment tools try to capture how fearful or greedy the market feels. The Fear & Greed Index condenses volatility, momentum, volume and other inputs into a single 0–100 score. It won’t predict anything, but it’s a useful gut-check against your own emotions — extreme readings often coincide with crowd behaviour like FOMO. You can watch it live on our Fear & Greed tool.
Putting it together: a reading routine
Here’s a simple order of operations for reading any coin’s page without getting fooled by the headline number:
- Start with market cap, not price — it tells you the true size of the network.
- Check the supply picture: circulating versus maximum supply, and how big the gap (future inflation) is.
- Look at volume relative to market cap to judge liquidity and whether the price is real.
- Read percentage changes across multiple windows, not just 24 hours.
- Place price against the ATH and ATL for historical context.
- Glance at dominance and sentiment for the broader market backdrop.
Do this a few times and the routine becomes automatic. You’ll stop seeing a wall of numbers and start seeing a coherent picture: how big a network is, how actively it trades, how volatile it’s been, and where it sits in its own history and the wider market.
Where to go next
If you want to go deeper on the single most important concept here, read our companion guide on market cap, volume and supply. To explore live data, open the markets page and apply this routine to a coin you’re curious about. And whenever you hit a term you don’t recognise, our glossary has a plain-language definition waiting.
Frequently asked questions
Why can't I compare two coins by their price?
Because price per coin depends on how many coins exist, which every project sets differently. A coin priced at a few cents can be a far larger network than one priced in the thousands. To compare the actual size of two networks, use market capitalization (price multiplied by circulating supply), not the per-unit price.
What's the difference between market cap and fully diluted valuation?
Market cap uses the circulating supply — the coins available today. Fully diluted valuation (FDV) uses the maximum supply — every coin that will ever exist. When FDV is much higher than market cap, a large amount of supply has yet to enter circulation, which represents future inflation that can dilute current holders.
What does trading volume tell me?
Volume is the total value traded over a period, usually 24 hours. It measures liquidity: high volume relative to market cap means you can buy or sell without moving the price much, while thin volume can cause slippage and may mean the quoted price isn't one you could actually transact at.
Is high volatility a bad thing?
Not inherently. Large daily price swings are a normal property of a young, global, 24/7 market. Volatility simply means a single day's percentage change tells you very little about an asset's longer-term character, so it's wise to look at price changes across several time windows.