Crypto Volume and Liquidity Explained (and How to Spot Fake Volume)

Volume and liquidity are two of the first things worth checking on any altcoin, and they are often confused. They answer different questions, and mixing them up is how traders end up unable to exit a position.

Volume

Volume is how much of a coin was traded over a period, usually 24 hours, quoted in dollars. A coin with $20 million of 24-hour volume changed hands to that value during the day.

Volume is activity. It is a sign that people are interested. Rising volume on a breakout suggests real participation. A coin on falling volume is losing attention.

Liquidity

Liquidity is how easily you can buy or sell without moving the price. On an exchange, it shows up as the depth of the order book: how many orders sit close to the current price. On a decentralised exchange, it is the size of the pool the token trades against.

A liquid market lets you sell $5,000 and barely move the price. A thin one drops several percent on the same order, and that difference is called slippage.

Why they are different

A coin can have high volume and poor liquidity, or the reverse. A token can print millions of dollars of volume in a day through a few very large trades, while the order book is thin and a single sell moves the price sharply. Volume tells you what happened. Liquidity tells you what will happen when it is your order.

For a trade you want to enter and exit, liquidity is the number that protects you.

What fake volume looks like

Volume figures are reported by the exchanges, and not all of them are honest. Wash trading is when the same party, or coordinated parties, buy and sell to each other to generate trading activity. It makes a coin look more active than it is, which attracts real buyers.

Signs to look for:

• Volume is huge compared with market cap. If a small coin trades its entire market cap several times a day, be sceptical.
• Volume that does not match the depth. Millions in volume with a thin order book or a tiny pool.
• Perfectly regular trades. The same size, at regular intervals, at prices that barely move.
• The volume exists on one obscure exchange and nowhere else. Compare the same coin across several venues.
• Price does not react. Real buying of that size would move the price. If it does not, the volume may not be real.

A two-minute check

1. Compare venues. Is the volume spread across several reputable exchanges, or concentrated on one?
2. Check the depth. Look at the order book, or the liquidity pool on a DEX aggregator. How much would it cost to sell your intended position?
3. Divide volume by market cap. Extremely high ratios deserve a second look.
4. Test with a small order where you can, to see the real fill price.

Why we filter at $1 million

The scanner in the open the terminal, free only lists coins with at least $1 million of 24-hour volume. This is not a promise that every one is safe. It is a practical floor: below it, the spreads and slippage on most altcoins become so wide that a good trade idea can be spoiled by the cost of getting in and out. It also removes many of the tokens where a single buyer can create a fake spike.

Sizing for liquidity

Even on a coin with decent volume, your order should be a small fraction of the depth. If you are trading a larger position, break the order into pieces. And when a coin is thin, reduce your position size as well, since your stop may fill at a worse price than planned.

Volume and liquidity are also part of our altcoin red flags checklist. And when you trade on decentralised exchanges, liquidity is even more critical. See DEX vs CEX for altcoins.