Liquidity: What It Is and Why It Matters in Investing

Liquidity describes how easily an asset can be bought or sold without causing a significant change in its market price. It is an important concept because investors may need to convert assets into cash when making purchases, meeting financial needs or changing an investment strategy.

What Is Liquidity?

An asset is generally considered more liquid when it can be converted into cash relatively quickly and with limited impact on its market price. Assets that may take longer to sell, or that may require a substantial price reduction to find a buyer, can be considered less liquid.

Why Does Liquidity Matter?

Liquidity can affect an investor's flexibility. If an investor needs access to money quickly, the ability to sell an asset efficiently may become important.

Low liquidity can sometimes make it more difficult to sell an investment when desired, particularly during periods of market stress or reduced trading activity.

Liquidity and Trading Activity

In financial markets, liquidity is often influenced by the number of active buyers and sellers. Markets with greater trading activity may make it easier for participants to buy or sell investments.

However, trading activity can change over time. An investment that is relatively easy to trade under normal market conditions may become harder to sell during unusual or highly volatile periods.

Liquidity Risk

Liquidity risk is the possibility that an investor may be unable to buy or sell an asset quickly at a reasonable price. This can become more important during periods of market stress, when buyers and sellers may behave differently from normal conditions.

Liquidity risk can vary depending on the type of asset, market conditions and the size of a transaction.

Liquidity and Market Volatility

Liquidity and volatility are different concepts, but they can sometimes interact. When market conditions become uncertain, trading activity and the availability of buyers or sellers can change.

Lower liquidity may contribute to larger price movements because even relatively small transactions can have a greater effect on market prices.

Liquidity and Financial Planning

Investors may consider liquidity when planning for short-term expenses, emergencies and other financial needs. Keeping all financial resources in assets that may be difficult to sell could reduce flexibility if money is required unexpectedly.

For this reason, liquidity needs are often considered alongside financial goals, investment time horizon, risk tolerance and overall asset allocation.

Factors That Can Affect Liquidity

• The number of active buyers and sellers.
• Trading volume and market participation.
• Current economic and market conditions.
• The type and structure of an investment.
• The size of the transaction.
• Investor demand for the asset.
• Periods of financial or market stress.

Liquidity Is Not the Same as Safety

A highly liquid asset is not automatically a low-risk investment. An investment may be easy to buy or sell while still experiencing significant changes in value.

Similarly, an asset that is less liquid is not automatically a poor investment. Liquidity is only one factor that may be relevant when evaluating an investment.

Important Factors to Consider

• When you may need access to your money.
• How quickly an asset could potentially be sold.
• Whether market conditions could affect the selling price.
• Your emergency and short-term financial needs.
• The role of the investment within your overall portfolio.
• Other investment risks in addition to liquidity risk.

Key Takeaways

• Liquidity describes how easily an asset can generally be bought or sold.
• More liquid assets may be easier to convert into cash.
• Low liquidity can make buying or selling more difficult or costly.
• Liquidity conditions can change during periods of market stress.
• Liquidity is different from investment safety and does not guarantee protection from losses.
• Liquidity needs can be an important part of financial planning and portfolio management.