Close this search box.

Table of Contents

Bid-Ask Spread


The Bid-Ask Spread is a financial term that refers to the difference between the highest price that a buyer is willing to pay for an asset (bid) and the lowest price at which a seller is willing to sell the same asset (ask). It’s essentially the disparity between the purchase price and the selling price. It is used as a measure of the liquidity of the market and the size of the transaction cost.


The phonetic pronunciation of the keyword “Bid-Ask Spread” is: bid-ahsk spred

Key Takeaways

Sure, here is the information in HTML format:“`html

  1. Bid-Ask Spread Definition: A bid-ask spread is essentially the gap between the most a buyer is prepared to pay for an asset (bid price) and the least price a seller is agreeable to sell (ask/offer price). This difference shows the liquidity of the market – tighter spreads imply a more liquid market, whereas wider spreads imply a less liquid market.
  2. Role in Trading: Bid-ask spreads play a significant role in trading. They are effectively the cost that an investor pays to a broker for mediating a security transaction. Traders, particularly those who deal frequently or in considerable volume, often look for assets with small bid-ask spreads, as the cost of trading will be lower in this instance.
  3. Factors Influencing Bid-Ask Spread: Various factors can influence the bid-ask spread, including market volatility, security liquidity, and competition among market makers. In general, securities with high liquidity and volume will have narrower bid-ask spreads, while less liquid or more volatile assets will have wider spreads.

“`This HTML text will render as a numbered list with each point being about bid-ask spread.


The bid-ask spread is a crucial concept in the financial market as it reflects the liquidity and depth of a specific market. The spread, which is the discrepancy between the bid price (how much a buyer is prepared to pay for a security) and the ask price (how much a seller is ready to accept for a security), is used to measure market supply and demand. When the spread is narrow, it signifies a highly liquid market with high volume and lots of buyers and sellers, which reduces transaction costs. On the other hand, a wide spread indicates an illiquid market with fewer participants and higher transaction costs, which could lead to higher financial risks. Therefore, understanding the bid-ask spread can help investors and traders make informed decisions and manage potential risks.


The Bid-Ask Spread serves as a crucial indicator of the liquidity and depth of a specific security or asset in the financial markets. It essentially measures the discrepancy between the highest price a buyer is willing to pay for an asset (the bid) and the lowest price a seller is ready to accept (the ask). A narrower spread generally suggests a higher level of liquidity, denoting a large number of buyers and sellers, which leads to more efficient price discovery. Broader spreads, on the other hand, are typically regarded as evidence of lower liquidity and higher transaction costs.Furthermore, the Bid-Ask Spread also acts as a source of compensation for market makers in the financial markets – these are entities, often financial institutions, that are always ready to buy or sell at publicly quoted prices to provide market liquidity. The spread represents the profit they stand to make for providing this service. Also, investors and traders utilise the Bid-Ask Spread to make strategic decisions, with a tighter spread often serving as an incentive for executing trades. Therefore, understanding the Bid-Ask Spread can provide essential insights into the market liquidity and transaction costs for both market participants and market makers.


1. Stock Trading: In the stock market, a common application for bid-ask spread is observed. For example, if Apple shares are being bid at $150 and asked at $150.05, the bid-ask spread is $0.05. This difference is the profit market makers keep for offering liquidity services. 2. Foreign Exchange Market: The foreign exchange market largely operates on the bid-ask spread. For instance, a currency pair USD/EUR might have a bid price of 1.1119 and an ask price of 1.1121, this means if you want to buy the currency pair, you have to pay 1.1121 USD for 1 EUR, and if you want to sell, you will receive 1.1119 USD for 1 EUR.3. Commodities Trading: In the commodities market, let’s say for Gold, the bid price might be $1880 per troy ounce, whereas the ask price might be $1883 per troy ounce. If you want to buy gold, you will need to pay the higher price ($1883) or if you want to sell, you will receive the lower price ($1880). The $3 spread is retained as a transaction cost by the trading platform or commodity broker.

Frequently Asked Questions(FAQ)

What is a Bid-Ask Spread in finance?

A bid-ask spread is a financial term that refers to the difference between the highest price that a buyer is willing to pay for an asset (bid), and the lowest price at which a seller is willing to sell the asset (ask).

How is the Bid-Ask Spread calculated?

The bid-ask spread is calculated by subtracting the bid price from the ask price.

What does a narrow Bid-Ask Spread signify?

A narrow bid-ask spread usually signifies high liquidity and low transaction cost. It suggests there’s a lot of buyers and sellers in the market and the asset can be easily bought or sold.

What does a wide Bid-Ask Spread signify?

A wide bid-ask spread can indicate limited liquidity in the market, resulting in potentially higher transaction costs. It suggests there are fewer buyers and sellers and that the asset may be harder to buy or sell.

How does the Bid-Ask Spread impact trading?

The bid-ask spread directly influences the cost of trading for investors and traders. Lower (narrow) spread indicates lower trading costs, while a higher (wider) spread indicates higher trading costs.

Does the Bid-Ask Spread change?

Yes, the bid-ask spread can fluctuate based on supply and demand of the underlying asset. It can also change in response to overall market conditions.

How does the Bid-Ask Spread relate to market liquidity?

The bid-ask spread is a common indicator of market liquidity. A narrow spread often means high liquidity and lower transaction costs, while a wide spread may indicate lower liquidity and higher transaction costs.

Can an investor or trader negotiate the Bid-Ask Spread?

In most cases, the bid-ask spread is set by the market and isn’t subject to negotiation by individual investors or traders. However, in some over-the-counter (OTC) transactions, the spread may be negotiable.

Is a low or high Bid-Ask Spread better?

In general, a lower (or narrower) bid-ask spread is preferable for investors and traders as it implies lower transaction costs and higher market liquidity. However, a bigger spread might indicate a potential opportunity for profit for market makers.

Related Finance Terms

Sources for More Information

About Our Editorial Process

At Due, we are dedicated to providing simple money and retirement advice that can make a big impact in your life. Our team closely follows market shifts and deeply understands how to build REAL wealth. All of our articles undergo thorough editing and review by financial experts, ensuring you get reliable and credible money advice.

We partner with leading publications, such as Nasdaq, The Globe and Mail, Entrepreneur, and more, to provide insights on retirement, current markets, and more.

We also host a financial glossary of over 7000 money/investing terms to help you learn more about how to take control of your finances.

View our editorial process

About Our Journalists

Our journalists are not just trusted, certified financial advisers. They are experienced and leading influencers in the financial realm, trusted by millions to provide advice about money. We handpick the best of the best, so you get advice from real experts. Our goal is to educate and inform, NOT to be a ‘stock-picker’ or ‘market-caller.’ 

Why listen to what we have to say?

While Due does not know how to predict the market in the short-term, our team of experts DOES know how you can make smart financial decisions to plan for retirement in the long-term.

View our expert review board

About Due

Due makes it easier to retire on your terms. We give you a realistic view on exactly where you’re at financially so when you retire you know how much money you’ll get each month. Get started today.

Due Fact-Checking Standards and Processes

To ensure we’re putting out the highest content standards, we sought out the help of certified financial experts and accredited individuals to verify our advice. We also rely on them for the most up to date information and data to make sure our in-depth research has the facts right, for today… Not yesterday. Our financial expert review board allows our readers to not only trust the information they are reading but to act on it as well. Most of our authors are CFP (Certified Financial Planners) or CRPC (Chartered Retirement Planning Counselor) certified and all have college degrees. Learn more about annuities, retirement advice and take the correct steps towards financial freedom and knowing exactly where you stand today. Learn everything about our top-notch financial expert reviews below… Learn More