Why Market Structure and Liquidity Matter (2024)

A Report in the US Equity Market Structure Analysis Series

Why Market Structure and Liquidity Matter (1)

In a post-Reg NMS world, one unintended consequence is the rise of fragmentation, complicating equity market structure & leading market participants to wonder if changes are necessary. Market structure matters as it can drive liquidity and trade costs. As such, market participants continually strive to create the most efficient markets. Inside this note we assess:

  • Liquidity & Trade Costs: Market liquidity is the ability to efficiently buy/sell securities without causing a substantial change in the price of the asset and is important as it impacts trade costs and therefore affects returns to investors.
  • Market Landscape: When routing an order, whether directly to an exchange or executed off-exchange, firms balance likelihood of execution against price/size improvement. (Also includes a look at market participants.)
  • Role of Market Makers: Market makers exist to provide liquidity in securities and execute trades, playing an important role in equity market structure by enabling the smooth flow of markets.

Executive Summary

In a post Regulation National Market System (NMS) world, one unintended consequence is the rise of fragmentation, perhaps too much fragmentation given there are now 16 exchanges, 33 alternative trading systems (ATS), and multiple over-the-counter (OTC) venues. This forces traders to balance the likelihood of certainty of execution against potential price and size improvement and other transaction costs when choosing an execution venue. As such, this has complicated U.S. equity market structure, leading market participants to wonder if changes are necessary.

Market structure can drive liquidity and trade costs. Therefore, market participants continually strive to create the most efficient markets. This includes adapting new technologies to achieve operational efficiencies, searching for new ways to transact and, generally, sculpting market structure to maximize efficiencies. In this note, we look at how market structure matters to achieving high levels of market liquidity and minimizing trade costs.

Market Liquidity – Market liquidity is the ability to efficiently buy or sell securities without causing a substantial change in the price of the asset (stable prices), as measured by speed and ease of execution. Markets need robust trading volumes to remain liquid, as liquidity is tied to price volatility. Wide swings in prices can limit demand for the securities, keeping volumes depressed. Lower volumes lead to increased time to execute a trade and wider bid-ask spreads – a measure of market liquidity – which increases costs to trade.

Trade Costs – Market liquidity is important as it impacts the costs to trade and therefore affects returns to investors. Higher spreads lead to higher transaction costs which cut into an investor’s return. Total trade costs can be split into: explicit (broker commissions, market access fees, transaction costs, clearing and settlement costs, taxes) and implicit (bid-ask spreads, opportunity cost, price impact of a trade).

Order Routing – Fragmentation in U.S. equity markets forces traders to balance the likelihood of execution against potential price and size improvement and other transaction costs when choosing an execution venue. Traders must balance the cost of not filling the order with the potential for price or size improvement. Firms have built technologies to address market fragmentation and seek out hidden liquidity to achieve best execution of trades on behalf of their clients. When routing an order, a broker can either send the order directly to an exchange (on exchange) or it can execute institutional and retail trades on a bilateral basis (off exchange).

Market Participants – Capital markets connect those needing capital (corporations) with providers of capital (investors). These relationships are facilitated by various financial institutions and equity exchanges: listing and trading exchanges; off-exchange venues; short-term holders of stocks; and liquidity providers.

Market Makers – Market makers must make two-sided markets at all times, no matter what the market environment. Even when markets become volatile or fall under extreme stress, market makers must continue facilitating the flow of liquidity in markets. In short, market makers play an important role in U.S. equity market structure by enabling the smooth flow of markets.

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Author

Katie Kolchin, CFA
Director of Research

The US Equity Market Structure Analysis Series

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Why Market Structure and Liquidity Matter (2024)

FAQs

Why Market Structure and Liquidity Matter? ›

Introduction to Equity Market Structure

Why is market liquidity so important? ›

A few reasons why market liquidity is important are: Efficient trading: Liquidity ensures investors can buy or sell assets quickly and at a fair price, facilitating efficient trading. Risk management: Liquidity allows investors to exit positions in times of uncertainty or crisis, helping to manage risk.

What is market structure and liquidity? ›

Market Liquidity – Market liquidity is the ability to efficiently buy or sell securities without causing a substantial change in the price of the asset (stable prices), as measured by speed and ease of execution. Markets need robust trading volumes to remain liquid, as liquidity is tied to price volatility.

Why does market structure matter? ›

Market structure is never static—it is constantly moving and shifting like Brownian motion. For traders, staying on top of market structure issues can give them an advantage, as they seek to optimize their trading strategy and improve performance.

What happens when there is no liquidity in the market? ›

Small-cap stocks are not traded as frequently, which means that when there is a demand for their shares, it can have a massive impact on the market and create significant volatility. A lack of liquidity can result in unappealing prices at which to buy the stocks, or a difficulty in selling stocks at a favourable price.

Why is liquidity important to the economy? ›

Liquidity provides financial flexibility. Having enough cash or easily tradable assets allows individuals and companies to respond quickly to unexpected expenses, emergencies or business opportunities. It allows them to balance their finances without being forced to sell long-term assets on unfavourable terms.

What is liquidity and why does it matter? ›

Liquidity refers to the efficiency or ease with which an asset or security can be converted into ready cash without affecting its market price. The most liquid asset of all is cash itself.

How do market orders affect liquidity? ›

Liquidity – When you place an order "at the market," you may receive different execution prices for parts of the order, especially for orders where the number of shares you want to buy or sell is relatively large when compared to the number of shares available on the bid or ask.

What is the 4 market structure? ›

Economic market structures can be grouped into four categories: perfect competition, monopolistic competition, oligopoly, and monopoly.

What is the structure of liquidity? ›

With Liquidity Structure , you can monitor your liquidity situation in a structured view. This information gives you an overview of how your cash and cash equivalent is distributed among various categories over a period of time.

How does market structure affect our economy? ›

So, the structure of the market affects how firm price and supply their goods and services, the entry and exit barriers, and how efficiently a seller carries out its business operations.

What are the advantages of market structure? ›

A market structure is a valuable tool for analyzing issues such as the process of setting prices for goods and the profitability potential. Understanding how businesses and markets function allows you to accurately assess industry and market news, regulatory changes, and the economy's influence on major decisions.

What is the most effective market structure and why? ›

Perfect competition is an ideal type of market structure where all producers and consumers have full and symmetric information and no transaction costs. There are a large number of producers and consumers competing with one another in this kind of environment.

What happens when there is too much liquidity in the market? ›

In conclusion, while liquidity is generally considered to be a good thing, there can be such a thing as too much of it. Excess liquidity can lead to asset bubbles, increased volatility, and a build-up of leverage in the system. This can ultimately make markets more risky, not less.

What happens if a business has poor liquidity? ›

Poor liquidity, on the other hand, means a business is at higher risk of failing if suddenly faced with unexpected debt, for example, a costly machine repair or a large VAT bill. If the business is unable to convert enough assets to cash quickly to cover the debt it can push it into insolvency.

Why is it bad to have low liquidity? ›

If a company has poor liquidity levels, it can indicate that the company will have trouble growing due to lack of short-term funds and that it may not generate enough profits to its current obligations.

Why is liquidity in a business important? ›

A company's liquidity indicates its ability to pay debt obligations, or current liabilities, without having to raise external capital or take out loans. High liquidity means that a company can easily meet its short-term debts while low liquidity implies the opposite and that a company could imminently face bankruptcy.

What is the market liquidity impact? ›

The extent to which the price moves is a reflection of the liquidity of the asset: the more liquid the asset, the less any one trade will affect its price. Trading an asset can also affect the prices of other assets, a phenomenon known as cross impact.

Why is maintaining market liquidity important in maintaining funding liquidity? ›

When funding liquidity is tight, traders become reluctant to take on positions, especially “capital intensive” positions in high-margin securities. This lowers market liquidity, leading to higher volatility.

Why is liquidity more important than profit? ›

While profitability shows that a company can make money from its operations, liquidity ensures it can pay bills and access enough cash when needed. Strong liquidity and profitability together contribute to long-term viability. Companies need profits to sustain operations and grow.

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