Lesson 5 of 12
What Is Market Liquidity?
Liquidity describes how easily an asset can generally be bought or sold without causing a significant change in its market price.
A highly liquid market normally has many active buyers and sellers.
A less liquid market has fewer available participants.
What does high liquidity look like?
A liquid market generally has:
Frequent transactions
Large numbers of participants
Significant trading volume
Competitive buying and selling prices
Relatively tight bid-ask spreads
Major forex pairs are commonly regarded as highly liquid compared with many less frequently traded financial instruments.
Why does liquidity matter?
Liquidity can influence the quality and availability of market prices.
When liquidity is high, there may be more orders available close to the current market price.
When liquidity is low, the distance between available prices may increase.
This can contribute to:
Wider spreads
Larger price gaps
Greater potential for slippage
Faster price movements when large orders enter the market
Does liquidity stay constant?
No.
Liquidity can change considerably throughout the trading day.
For example, EUR/USD may experience increased activity when European and US trading sessions overlap.
Liquidity can also decline:
Around market openings or closings
During holidays
Before major announcements
During unexpected events
When market uncertainty increases
Liquidity and position size
The size of an order also matters.
A market may easily absorb a relatively small transaction but have difficulty filling a very large order at one price.
Larger orders may therefore execute across several available price levels.
This becomes particularly important for institutional participants trading significant volumes.
Lesson summary
Liquidity measures how easily a market can absorb buying and selling activity.
Highly liquid markets generally have many active participants.
Greater liquidity can contribute to tighter spreads.
Liquidity changes throughout the trading day.
Large orders can interact with several levels of available market liquidity.