Reading the Market
Price, volume and market cap each tell you something specific and hide something else, and reading them (plus a candlestick) without being fooled is the whole skill.
Look at the candle above before reading on: drag its close and the body flips colour and resizes, while the wicks stay pinned to the high and low. That single candlestick is the building block of the jagged chart you are about to meet. Open any crypto data site and it throws numbers at you all at once: a price, a 24-hour volume, a market cap, and a jagged red-and-green chart. It looks like a lot, but almost all of it comes down to a handful of figures, and the trick is not memorising them. It is knowing what each one measures, and just as importantly, what each one quietly leaves out. Read them the right way and a data site is a map. Misread them and the same screen becomes a trap that separates the informed beginner from the easily-fooled one. This module walks through the numbers slowly, one at a time.
The three headline numbers
Three figures describe almost any asset you look at.
- Price is just the level of the most recent trade: what one unit last changed hands for. It is a snapshot, and it can jump the instant the next trade prints.
- 24-hour volume is the total value traded over the last day. Think of it as a rough gauge of activity and liquidity, meaning how easily you could buy or sell without shoving the price around.
- Market capitalisation is price multiplied by the circulating supply (the coins that currently exist and are available). The formula is simply market cap = price x circulating supply.
Market cap is what people use to compare the rough size of two assets. A coin at $2 with 100 million coins circulating has a $200 million market cap, which is larger than a coin priced at $2,000 that only has 50,000 coins in circulation ($100 million). The sticker price alone told you nothing about which is bigger.
What each number quietly hides
This is where beginners get hurt, so read it twice.
Market cap ignores liquidity entirely. It multiplies price by every circulating coin, but you cannot actually sell every coin at the current price. A coin can show a big market cap and still be impossible to exit near that price, because your own selling pressure crashes it. Market cap is size on paper, not cash you can walk away with.
The low-float trap. If only a tiny fraction of a token's coins are actually trading, a small amount of buying can shove the price (and therefore the headline market cap) up to a huge, misleading number. That is why data sites also show fully diluted valuation (FDV): price multiplied by the total eventual supply, not just today's circulating supply. A token can look cheap by market cap and enormous by FDV, which is a warning that a lot of future supply is waiting to unlock.
Price alone says nothing about value. A coin at $0.001 is not automatically better value than one at $50,000. What matters is the supply behind it and the total valuation, never the sticker price on its own.
How to read a candlestick
Crypto charts are usually drawn as candlesticks, and each candle packs four numbers for one slice of time (a minute, an hour, a day). Those four are the open (price at the start), the high (highest reached), the low (lowest reached), and the close (price at the end), together called OHLC.
- The thick part, the body, runs between the open and the close.
- Colour shows direction. By convention a green (or hollow) candle means the close was higher than the open, so price rose over that period. A red (or filled) candle means it fell.
- The thin lines above and below the body are the wicks (or shadows). They mark the high and low, showing how far price stretched before settling. A long wick tells you price got pushed to an extreme and then rejected back.
You do not need to predict anything from a single candle. The goal here is just to read what a candle is saying, not to treat it as a crystal ball.
Volume, liquidity and fake activity
Volume matters because it signals liquidity, and thin liquidity is dangerous. In a market with low real volume, one large order can swing the price dramatically (the same "walking the book" idea from Module 4), which also makes such markets easy to manipulate.
Watch especially for wash trading, where someone trades with themselves, buying and selling the same asset, purely to manufacture fake volume and the illusion of interest. Because of this, reported volume can be inflated, so a big volume number on an obscure token is not automatically proof of genuine demand. The healthy signal is deep, consistent volume spread across reputable venues, not a sudden spike on one small exchange.
Where the numbers come from
Beginners usually pull their figures from aggregators like CoinGecko or CoinMarketCap, which gather data from many exchanges into one clean view. They are excellent starting points, but use them with three caveats in mind.
- Know which supply a figure uses. Circulating supply (what trades now) versus total or fully diluted supply (everything that will eventually exist) changes the market-cap picture completely.
- Remember the wash-trading caveat. Aggregate volume can include fake trades, which is why good aggregators try to filter or flag suspicious venues.
- Treat every number as a snapshot, not a verdict. The data describes the past. It does not predict the future.
Worked example: a big market cap you cannot cash out
A new token trades at $0.10. Its circulating supply is 100,000,000 coins, so:
- Market cap = $0.10 x 100,000,000 = $10,000,000.
That $10 million looks substantial. But two facts change the picture.
First, the token's total eventual supply is 1,000,000,000 coins, so its fully diluted valuation is $0.10 x 1,000,000,000 = $100,000,000. Ten times more supply is waiting to unlock and could dilute the people holding today.
Second, the order book only holds about $20,000 of buy orders within 10% of the current price. So although the "market cap" says $10 million, if you tried to sell even $50,000 worth you would blow straight through those bids and crash the price well below $0.10.
The market cap counted every coin at the last price. The order book shows you could never actually realise that value. Market cap measures notional size, never how much you can get out at once, and that gap (size on paper versus liquidity in practice) is the number-one thing thin-token buyers overlook.
Market cap vs fully diluted valuation (FDV)
These two numbers answer different questions, and mixing them up is a classic beginner mistake.
- Market cap = price x circulating supply. It values only the coins that exist and trade right now.
- FDV = price x total eventual supply. It values every coin that will ever exist, including the ones locked up or not yet issued.
When FDV sits far above market cap, it is a flag: a large amount of future supply is scheduled to enter circulation. If those coins unlock and hit the market, they can dilute existing holders and drag the price down, even if nothing else changes. A token that looks cheap on market cap but huge on FDV is telling you to check the unlock schedule before you assume it is "small".
Why price alone is a bad value signal
It feels intuitive that a $0.001 coin is "cheaper" than a $50,000 coin, so it has more room to grow. That instinct is wrong, and it costs beginners money.
Price is just one factor. Value depends on price times supply (the total valuation), not the number on its own.
- Coin A: $0.001 with 10 trillion coins = $10 billion valuation.
- Coin B: $50,000 with 20 million coins = $1 trillion valuation.
Coin A has the lower sticker price but is nowhere near "smaller room to grow" in any simple sense, because it already carries a $10 billion valuation on an enormous supply. A low unit price often just means a large supply, not a bargain. Always look at price and supply together.
Quick knowledge check
Write the market-cap formula and say what each part means. Market cap = price x circulating supply. Price is the level of the last trade; circulating supply is the number of coins currently in existence and available to trade. Multiply them and you get the rough size of the asset on paper.
Name one thing market cap fails to measure, and why it matters. Liquidity. Market cap assumes every circulating coin could be sold at the current price, but a thin order book means you cannot exit a large position anywhere near that price. So a big market cap can hide the fact that you could never actually cash out at that value. (It also glosses over low-float distortions and future supply, which is what FDV exists to show.)
What four numbers does a single candlestick show, and what does the body colour usually mean? Open, high, low and close (OHLC) for one time period. The body runs between the open and the close. A green (or hollow) body usually means the close was above the open, so price rose over that period; a red (or filled) body means price fell.
Sources
- US SEC (Investor.gov), "Market Capitalization", the standard definition of market cap as price multiplied by units outstanding (for crypto, price x circulating supply).
- CME Group, "Chart Types: Candlestick, Line, Bar", what the open, high, low and close mean and how body colour and wicks are read.
- US CFTC Glossary, "Wash Trading", how offsetting self-trades manufacture fake volume and a false impression of activity.
- US SEC (Investor.gov), "Types of Orders", order books, bids and asks, and how a large order fills at progressively worse prices in a thin market.
- CoinGecko, "What Is Fully Diluted Valuation (FDV) in Crypto?", worked examples of how circulating supply, total supply and fully diluted valuation are reported side by side, and why they differ.