What is liquidity?

Imagine you want to sell a used phone: having dozens of buyers waiting is one thing; having just one, who offers far less than you’re asking, is another. The crypto market works in a similar way. It’s not enough for a price to appear on the screen; there need to be trades available close to it.

On an exchange with an order book, liquidity comes from the available buy and sell orders. When there are enough quantities near the current price, a trade can execute without changing it much. If there are few orders, a larger purchase can use up the cheapest offers and continue into more expensive ones.

On many decentralized exchanges, trades go through liquidity pools. There, users deposit assets that are used for swaps. The pool’s size and how it works affect how much each trade moves the price.

Why it matters

Liquidity affects the price at which a trade actually executes. In a market with limited liquidity, the price you see can differ noticeably from the average price you’ll pay or receive for the full quantity.

It’s also linked to the bid-ask spread and to slippage. A tight spread and plenty of available quantity near the current price usually point to better execution conditions. We see liquidity as a key factor in understanding how well a market functions, not as a sign that a token is safe.

What to watch out for

Trading volume isn’t the same as liquidity. Volume shows what has already changed hands over a period, while liquidity is about what can be traded now. Likewise, a large market cap doesn’t guarantee you can sell a large amount without affecting the price.

Liquidity varies by exchange and trading pair, and it can dry up suddenly in turbulent periods. A limit order controls the acceptable execution price, but it doesn’t guarantee a counterparty will be found or that it will fill completely.