Categories: Stock Markets

What is High-frequency trading (HFT)? How it works, examples

The use of technology in stock markets has revolutionised the access and the mode of investing and trading for an average Indian. This also prompted the use of technology for the execution of rapid trades in high frequency that can be instrumental in building a successful portfolio. So what is the meaning of high-frequency trading and how to build a portfolio using it? Given here are the details of the same. 

Read More: What is algo-trading? – All you need to know 

What is meant by High-Frequency Trading?

High-Frequency Trading (HFT) refers to a type of trading strategy that uses advanced computer algorithms to execute a large number of trades at incredibly fast speeds. In simple words, it’s like super-fast trading done by computers. HFT relies on powerful computers and sophisticated software programs to analyze market data, identify patterns, and execute trades within fractions of a second. These trades can involve buying or selling stocks, commodities, currencies, or other financial instruments.

The goal of HFT is to take advantage of small price differences that occur in the markets within very short time periods. Computer algorithms can react swiftly to changing market conditions and execute trades faster than human traders can. HFT has become popular because it can generate profits from these tiny price differences when executed at high volumes and frequencies. However, it’s important to note that HFT requires substantial investments in technology and infrastructure to compete in the high-speed trading environment.

How does High-Frequency Trading work?

HFT operates in highly competitive environments, where milliseconds matter. To be successful, HFT firms invest heavily in high-speed data connections, co-located servers near exchanges, and advanced trading technologies to minimize latency. Technology is used to identify trading opportunities and execute the same in a fraction of a second. The process can be explained as under. 

  • HFT algorithms continuously monitor and analyze vast amounts of market data in real time. This data includes information about stock prices, order book changes, news, and other relevant factors that can affect prices.
  • The algorithms look for patterns and signals in the data. For example, they may identify a slight price difference between two different stock exchanges for the same stock. These patterns are often short-lived and may only exist for a fraction of a second.
  • When a trading opportunity is identified, the algorithm makes a decision on whether to buy or sell. This decision is based on pre-programmed rules and strategies designed to take advantage of small price differences.
  • Once a decision is made, the algorithm sends orders to the stock exchange at lightning-fast speeds. These orders are often for large volumes of trade. The algorithms aim to execute the trades as quickly as possible to take advantage of the price difference before it disappears.
  • HFT aims to make a profit from the small price differences it captures. These profits can accumulate over numerous trades due to the high volume and frequency of trading

What are different High-Frequency Trading strategies?

There are several trading strategies that are adopted under high-frequency trading. Some of the common strategies are highlighted below.

Market Making

In market making, HFT firms play the role of intermediaries by constantly providing liquidity to the market. They place both buy and sell orders for various securities, such as stocks or currencies, with the intention of profiting from the bid-ask spread. The bid price represents the highest price a buyer is willing to pay, while the ask price is the lowest price a seller is willing to accept. By placing orders close to the current bid and ask prices, HFT firms facilitate trading and help ensure there is always a market available for buyers and sellers.

Statistical Arbitrage

Statistical arbitrage is a strategy employed in high-frequency trading to identify price differences among different securities traded on various exchanges or markets. This approach involves analyzing historical and real-time market data to detect instances where the prices of related securities deviate from their usual patterns. High-frequency traders using statistical arbitrage focus on liquid securities like bonds, equities, currencies, and futures. This strategy may also incorporate traditional arbitrage techniques, such as interest rate parity, to exploit pricing discrepancies and generate profits.

News-Based Trading

News-based trading strategies focus on reacting to news events that can impact financial markets. HFT algorithms process vast amounts of news data, including earnings releases, economic indicators, and geopolitical developments. By analyzing the news and its potential impact on prices, the algorithms aim to execute trades swiftly to capitalize on the expected market movements triggered by the news event. The speed of HFT allows for rapid response, often even before human traders can fully digest the news.

Scalping

Scalping is a strategy where HFT firms aim to profit from small price discrepancies in the market. The algorithms quickly enter and exit trades, taking advantage of these small price differences, often capturing just a fraction of a cent per trade. While the profit per trade may be small, the high frequency at which these trades are executed can result in significant cumulative profits.

What are the pros and cons of High-Frequency Trading?

The benefits and shortcomings of high-frequency trading are highlighted below.

Pros

The advantages or merits of high-frequency trading include,

Increased liquidity

HFT firms actively participate in the market as market makers, providing liquidity by continuously placing buy and sell orders. This helps ensure that there is a ready market for buyers and sellers, enhancing overall market liquidity.

Narrow bid-ask spread

The constant presence of HFT firms in the market helps to narrow the bid-ask spread—the difference between the highest price a buyer is willing to pay and the lowest price a seller is willing to accept. This can benefit traders by reducing transaction costs.

Efficient price discovery

HFT’s rapid analysis and execution capabilities contribute to efficient price discovery. By processing vast amounts of market data and reacting swiftly to news and events, HFT algorithms help prices reflect relevant information accurately and in a timely manner.

Reduced human error

High-frequency trading is often considered more efficient than traditional trading because it eliminates human interference. In contrast, high-frequency trading relies on computer algorithms that can execute a large volume of orders at incredibly fast speeds. The automated nature of high-frequency trading enables swift decision-making and eliminates human errors that can occur during manual trading.

Cons

The shortcomings of high-frequency trading are mentioned below.

Increased Volatility

HFT’s speed and automated nature can amplify market volatility. Algorithms reacting to market movements and engaging in rapid trading can contribute to sudden and sharp price fluctuations, potentially leading to increased market instability.

Regulatory and Compliance Challenges

HFT’s complex nature poses challenges for regulators in terms of monitoring and oversight. Regulating HFT practices and addressing potential market abuses, such as front-running or market manipulation, requires continuous adaptation to keep pace with evolving technology and trading strategies.

Unequal Access

HFT requires substantial investments in advanced technology and infrastructure. This can create a disparity in market access, as only firms with significant financial resources can compete in the high-speed trading environment. Smaller investors may feel disadvantaged due to limited access to the same level of technology and market data.

Conclusion

High-frequency trading (HFT) is a sophisticated and costly trading approach that utilizes advanced tools and software. It operates within a narrow window of opportunity, executing rapid buy and sell transactions across multiple markets in a very short duration. Traders who engage in HFT need to thoroughly understand the intricacies of this specialized trading system and carefully assess all aspects before proceeding with their investments.

FAQs

1. Who are the target users of high-frequency trading?

HFT is predominantly employed by major hedge funds, independent proprietary trading units, and brokerages.

2. How is HFT regulated in India?

High-frequency trading is regulated by SEBI in India and all the participants have to adhere to the rules and regulations set up by SEBI in this regard.

3. Is algo trading and high-frequency trading the same thing?

High-Frequency Trading (HFT) and algorithmic trading (algo trading) are related concepts, but there are some distinctions between the two. HFT is a specific type of algorithmic trading that focuses on executing high-speed trades to exploit short-lived market opportunities. Algo trading is a broader term encompassing a wide range of trading strategies executed using computer algorithms, including both high-frequency and other types of automated trading.

4. Is high-frequency trading profitable?

Despite being a relatively new market in India, High-Frequency Trading has attracted significant attention and understanding among traders. It has emerged as a highly profitable venture, with several start-ups exclusively focusing on this trading strategy. The number of such start-ups is expected to grow in the future.

Marisha Bhatt

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