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 A guide to understanding key market participants

Explore the essential roles of market participants in trading, from retail traders to high-frequency traders, and understand the primary methods for trading on exchanges and over-the-counter markets.

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This article was produced by IG's editorial team using AI-enhanced research 

Who's involved in trading? 📈

Trading the financial markets involves interacting with various individuals and entities known as market participants. These participants play different roles, all crucial to the functioning of financial ecosystems.

✅ Importance? As a retail trader, understanding who these players are, their functions, and how you relate to them can enhance your trading experience.

Step 1: Meet the market participants 🔍

Market Participant

Definition

     
Retail Traders Private individuals trading personal accounts, focusing on growth or volatility      
Brokers Execute trades on behalf of retail traders, may offer various services      
Broker-Dealers Execute trades for clients and trade on own account      
Market Makers Provide liquidity by maintaining security inventories and quoting prices      
Institutional Traders Manage large funds on behalf of clients, influence market prices      
High-Frequency Traders (HFT) Use algorithms and technology to execute rapid, high-volume trades      

Here are examples of specific market particpants: 

  • Retail Traders: Individual investors trading shares
  • Brokers: Full-service, advisory, execution-only brokers
  • Broker-Dealers: Firms like Goldman Sachs, JP Morgan
  • Institutional Traders: Banks, hedge funds, pension funds

Step 2: Distinguish brokers from broker-dealers ⚖️

While brokers focus on executing trades and facilitating access for retail traders, broker-dealers also engage in trading for their own accounts. This dual role allows broker-dealers to benefit from market movements themselves.

Step 3: Explore trading methods 📊

There are two main ways to trade financial instruments:

🔹 On exchange

Trading occurs on formal exchanges like the Australian Securities Exchange (ASX). These have central locations and facilitate trades either in person or electronically.

🔹 Over-the-counter (OTC) markets

Used for trading non-listed instruments like forex pairs. These are virtual networks without physical locations, where dealers set prices privately.

Know what is traded where?

Step 4: Understand the role of market makers 🌏

Market makers play a key role in maintaining market liquidity by overseeing the following:

  • Quote continuous buy and sell prices
  • Hold inventories
  • Ensure transactions occur smoothly, even without direct matching counterparties.

Step 5: How do institutional traders impact markets? 💱

Institutional traders, such as banks and superannuation funds, manage large portfolios and significantly impact market dynamics through their substantial trading activities. 

Step 6: Explore a rapid approach 🕒

High-frequency trading uses computers to automatically apply trading strategies and algorithms, finding and exploiting patterns, trends and tiny fluctuations in the market. Instead of employing teams of analysts and traders, an HFT firm relies on technology that can make multiple trading decisions in a fraction of the time it takes a human brain.

So what's next?

Important to know

This information has been prepared by IG, a trading name of IG Australia Pty Ltd. In addition to the disclaimer below, the material on this page does not contain a record of our trading prices, or an offer of, or solicitation for, a transaction in any financial instrument. IG accepts no responsibility for any use that may be made of these comments and for any consequences that result. No representation or warranty is given as to the accuracy or completeness of this information. Consequently any person acting on it does so entirely at their own risk. Any research provided does not have regard to the specific investment objectives, financial situation and needs of any specific person who may receive it. It has not been prepared in accordance with legal requirements designed to promote the independence of investment research and as such is considered to be a marketing communication. Although we are not specifically constrained from dealing ahead of our recommendations we do not seek to take advantage of them before they are provided to our clients.

  

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