Market makers: keeping shares easy to buy and sell

Some shares would be hard to trade without someone always ready to deal. That someone is a market maker. This guide explains what a market maker does and why the role helps trading.

Quick answer

A market maker is a participant who continuously offers to buy and sell a security, quoting both a buy price and a sell price. By always being ready to deal, a market maker adds liquidity, making it easier for others to trade. The role is especially useful for smaller or less-traded securities.

Key takeaways

• A market maker quotes both buy and sell prices.
• It stands ready to deal at those prices.
• This adds liquidity to the market.
• It helps smaller or less-traded securities.
• It earns from the gap between buy and sell prices.

What is a market maker?

A market maker is a participant who continuously offers to both buy and sell a particular security, quoting a price at which it will buy and a price at which it will sell. It stands ready to deal at these prices.

By always being present on both sides, a market maker means there is usually someone to trade with, even when other buyers or sellers are scarce.

How does a market maker work?

The market maker quotes a buy price, slightly lower, and a sell price, slightly higher. The gap between them is called the spread, and it is how the market maker earns from its activity.

When an investor wants to sell, the market maker buys at its buy price. When an investor wants to buy, the market maker sells at its sell price. It manages the resulting position over time.

Why does the role matter?

Market makers add liquidity, meaning the ease of buying or selling without moving the price much. Good liquidity makes a market fairer and more attractive to investors.

This is especially valuable for smaller or less-traded securities, where natural buyers and sellers may be few and far between.

How does a market maker earn?

A market maker earns mainly from the spread, the difference between its buy and sell prices. Across many trades, these small gaps add up, compensating it for the service and the risk it takes.

The risk is that prices move against the position it holds, so market makers manage their positions carefully to control this.

What should investors know?

For investors, market makers help ensure you can trade when you want, especially in less liquid securities. The spread is a small cost you pay for that ease.

Understanding market makers helps you see why liquidity matters. Any investment decision should be your own after proper research.

Frequently Asked Questions