Intermarket Trading System: What It Is, How It Works, Types, and Examples
Summary:
The Intermarket Trading System (ITS) refers to an electronic network established to connect various American stock exchanges, facilitating seamless trade execution across multiple platforms. Brokers and market makers utilized ITS to identify and execute trades at the most favorable prices available across the linked exchanges. Over time, advancements in electronic trading technology rendered ITS obsolete, leading to its eventual phase-out in favor of more efficient trading systems.
Understanding the intermarket trading system (ITS)
The Intermarket Trading System (ITS) was an innovative electronic network designed to link various American stock exchanges. By connecting brokers and market makers across these exchanges, ITS enabled the execution of trades at the best available prices. Despite its early success, ITS was eventually phased out as newer, more efficient trading systems emerged. This article delves into the history, mechanics, and eventual obsolescence of the Intermarket Trading System, offering a comprehensive overview for anyone interested in the evolution of stock trading technology.
The inception and purpose of ITS
The Intermarket Trading System (ITS) was launched in 1978, during an era when stock trading was predominantly conducted manually on trading floors. ITS aimed to create a more efficient and interconnected trading environment by linking the trading floors of nine American stock exchanges. This connectivity allowed brokers to execute trades at the best possible prices without the need to physically be on the other exchanges’ floors.
How ITS functioned
ITS operated as an electronic communications network (ECN) that facilitated the routing and execution of trade orders between participating exchanges. When a broker or market maker entered an order on one exchange, ITS would automatically search for the best price across all linked exchanges. If a better price was found, the system would reroute the order to the appropriate exchange for execution. This mechanism ensured that traders could take advantage of price discrepancies and obtain the most favorable terms.
The exchanges connected by ITS
Participating exchanges
ITS connected several major American stock exchanges, including:
- New York Stock Exchange (NYSE)
- American Stock Exchange (AMEX)
- Boston Stock Exchange (BSE)
- Chicago Stock Exchange (CHX)
- Cincinnati Stock Exchange (CSE)
- Pacific Stock Exchange (PSE)
- Philadelphia Stock Exchange (PHLX)
- Cboe Options Exchange (Cboe)
- National Association of Securities Dealers (NASD)
This network of exchanges provided a comprehensive platform for executing trades, enhancing market efficiency and transparency.
Advantages of the intermarket trading system
Improved price discovery
ITS significantly improved price discovery by allowing brokers to access and compare prices across multiple exchanges. This capability ensured that trades were executed at the best available prices, benefiting both brokers and their clients.
Increased market liquidity
By linking multiple exchanges, ITS enhanced market liquidity. Traders could easily find counterparties for their orders, reducing the time and effort required to complete transactions. This increased liquidity also helped stabilize prices and reduce volatility.
Enhanced market efficiency
ITS streamlined the trading process by automating the search for the best prices and routing orders accordingly. This automation reduced the need for manual intervention and minimized errors, leading to a more efficient trading environment.
Pros and cons of intermarket trading system
The phase-out of ITS
Technological advancements
As electronic trading technologies advanced, the limitations of ITS became more apparent. The system, which was revolutionary in its time, struggled to keep pace with the rapid developments in trading platforms and networks. By the late 1990s and early 2000s, newer technologies offered faster and more efficient alternatives for executing trades.
NYSE and Nasdaq departures
In 2000, the NYSE decided to stop using ITS, marking the beginning of the system’s decline. Nasdaq followed suit in 2006, citing the outdated nature of ITS and its incompatibility with Nasdaq’s electronic trading model, which did not involve a traditional trading floor. These departures were driven by the exchanges’ need to adopt more advanced and flexible trading systems that could better handle increasing order volumes and the demands of modern electronic trading.
The emergence of ECNs
The phase-out of ITS paved the way for the rise of Electronic Communications Networks (ECNs). These networks provided a more advanced and efficient means of executing trades by offering open-access communication and linking to multiple market centers. Nasdaq, for instance, integrated its ECN system with other tools, such as SuperMontage and INET, to create a comprehensive trading platform known as the Nasdaq Market Center Execution System.
Conclusion
The Intermarket Trading System (ITS) played a pioneering role in the evolution of stock trading by connecting multiple American exchanges and enhancing trade execution efficiency. Despite its initial success and contributions to improved price discovery and market liquidity, the rapid advancement of electronic trading technologies led to its obsolescence. The phase-out of ITS marked a significant transition in the financial markets, paving the way for more advanced and efficient trading systems that continue to shape the modern trading landscape.
Frequently asked questions
What was the primary purpose of ITS?
The primary purpose of the Intermarket Trading System was to link the trading floors of various American stock exchanges, allowing brokers and market makers to find and execute trades at the best available prices.
Which exchanges were connected by ITS?
ITS connected nine major American stock exchanges, including the NYSE, AMEX, BSE, CHX, CSE, PSE, PHLX, Cboe, and NASD.
Why was ITS phased out?
ITS was phased out due to the rapid advancements in electronic trading technologies, which rendered the system outdated. Major exchanges like the NYSE and Nasdaq withdrew from ITS to adopt more advanced and efficient trading platforms.
What replaced ITS?
ITS was replaced by more advanced electronic trading systems, such as Electronic Communications Networks (ECNs), which provided faster and more efficient trade execution and order routing.
How did ITS improve market liquidity?
By linking multiple exchanges, ITS enhanced market liquidity by making it easier for traders to find counterparties for their orders. This increased the overall trading volume and reduced the time required to execute trades.
What were the main benefits of ITS?
The main benefits of ITS included improved price discovery, increased market liquidity, and enhanced market efficiency. It allowed for more transparent and competitive trading environments across connected exchanges.
What challenges did ITS face?
ITS faced several challenges, including the complexity of implementation, dependency on electronic systems, and potential for network congestion. As trading volumes and speeds increased, these issues became more pronounced, leading to the system’s eventual phase-out.
How did ECNs differ from ITS?
Electronic Communications Networks (ECNs) differed from ITS in that they offered a more advanced and efficient means of executing trades. ECNs provided open-access communication and linked to multiple market centers, offering faster trade execution and better integration with modern electronic trading platforms.
Key takeaways
- The Intermarket Trading System (ITS) was an electronic network linking nine American stock exchanges.
- ITS improved price discovery, market liquidity, and trading efficiency.
- ITS was phased out due to advancements in electronic trading technologies.
- NYSE and Nasdaq ceased using ITS in 2000 and 2006, respectively.
- Electronic Communications Networks (ECNs) replaced ITS, offering more advanced trading solutions.
Table of Contents