The term liquidity is defined as the ability to buy or sell an asset in the market without causing a sharp change in the asset's price in the market.

Liquidity can refer to two different areas; liquid markets and liquid assets.

Liquid markets mean that there are always investors in the market willing to trade, while liquid assets refer to assets that can be easily converted into cash.

But what does this concept mean in the cryptocurrency world?

As with any investment, you want to be able to buy and sell tokens quickly without having to drop the price or wait a long time for a trade to be matched. In order for this to be possible, the market where the trade is being made must be liquid. In other words, there must be active trading activity in the market, and the buy and sell prices must not be too far apart.

Let’s take an example from a seller’s perspective:

Bob owns 5 of a certain cryptocurrency, and the price of his tokens has increased over the past few days. Bob is happy and decides to quickly sell all his tokens at the current market price.

If the market is liquid, meaning there are enough buyers willing to buy Bob's tokens at the price he wants, Bob will be able to quickly sell the asset at the price he wants. Since there is enough liquidity to accommodate Bob's transaction, his transaction will not affect the price of the token.

However, if Bob asks to sell his 5 tokens at the current market price in an illiquid market, there will not be enough buyers willing to pay the price Bob is asking, and he will need to lower his asking price or wait for the market to become more liquid in order to sell his tokens. If Bob decides to sell at a lower price, his transaction will also affect the current market price of this token.

How to tell if a market is liquid

When considering whether a market is liquid, it is a good idea to first look at three important indicators: 24-hour trading volume, order book depth, and the difference between the ask price and the bid price, also known as the bid-ask spread.

However, the order book does not represent the most accurate price due to factors such as limit stop orders and iceberg orders. These special orders are created through trading automation tools and therefore do not necessarily appear on the order book until specific conditions are met.

Liquidity is extremely important when considering trading. It is a key factor in the ease with which you can enter or exit the market.

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