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Four Reasons to Trade Stock Indices

Index trading involves speculating on the direction of the price of an index. If you are a scalper or day trader, you might prefer the Cash CFD products as they will have lower spreads and longer trading hours. They are subject to a daily swap charge, but if you close your positions prior to the market close, it will not affect you.



Let us start with the basics – an index is used to measure the performance of a group of assets. When we talk about stock indices, this would be a group of individual stocks and their stock price.

What are indices?

One famous stock index you have probably heard about is the S&P 500. The S&P 500 is an index tracking the performance of 500 large U.S.-listed companies. It is often used as a benchmark for comparing the performance of investment funds, but it is also a popular and easy way for investors to track the overall performance of the U.S. stock market.

In financial media, analysts will often refer to indices when commenting about the performance of a particular country´s financial market. Some other indices you might have heard of are:

  • FTSE 100 (United Kingdom)
  • DAX 40 (Germany)
  • Nikkei 225 (Japan)
  • Hang Seng Index (Hong Kong)

What is index trading?

Index trading involves speculating on the direction of the price of an index.

If you expect that the S&P 500 will increase in price over a certain period, you can buy the index (i.e., take a long position in the market). You will be profiting from an increase in the value of the index.

On the other hand, if you believe that the S&P 500 will decline over a certain period, you can sell the index (i.e., place a short position in the market). You will therefore be speculating on a falling index without owning any of the underlying instruments and profiting from a decrease in the value of the index.

Find out more about the S&P 500 and how to start index trading.

Four major reasons why to trade stock indices

Flexibility to go long and short

As shown in the previous examples, by trading indices you can profit both from rising and falling prices. This is beneficial for both traders and investors. For example, frequently shifting your portfolio can become expensive and getting the timing right to re-enter the market can be extremely tricky. Instead of selling a significant part of their holdings every time they sense a downturn is coming, investors might instead sell an index using CFDs. Which index to choose will depend on where you have most of your exposure. If 80% of your holdings are in U.S. large cap equities, you might find going short on the S&P 500 the logical choice.

Efficient way to take a directional trade

Let´s assume that you are very bullish on the U.S. technology sector as you think that the work-from-home technology boom will last and that the economic recovery will be kind to the stock price of plenty of tech companies. Instead of buying a lot of different stocks – which can be expensive and difficult to manage – or narrowing down your choice to only 2-3 of them, which can be a difficult choice and lead to mistakes, you could just buy the NASDAQ 100 index. This is a cost-effective way to speculate on a growing U.S. technology sector and it is far easier to manage one position than having to deal with multiple.

Indices can provide diversification

Continuing with the previous example, picking the right stocks can be difficult. Let´s assume you have a bullish view on the Australian economy and think that the Australian stock market is undervalued. You might not have the resources, time, or expertise to analyze the market and come up with a portfolio of Australian individual shares you want to buy. Buying the ASX 200 index instead will not only make it easier for you, but you will also be diversified, as the index consists of companies from different sectors.

Less capital needed

Index CFDs are a leveraged product, which means the margin required to open a position is low. This can free up a lot of your capital, which you can use to capitalize on other investing / trading opportunities.

How can you trade indices?

The most popular way to trade indices for retail traders is to use Contracts for Differences (CFDs). CFDs are financial instruments that allow traders to profit both from falling and rising prices; open a short (sell) position if you think the index will fall; open a long (buy) position, if you think an index will rise. There are two types of CFDs:

  • Cash CFDs
  • Futures CFDs

Difference between Cash CFDs and Futures CFDs

  • Cash CFDs are based on the spot market, while Futures CFDs are based on the underlying Futures contract.
  • Cash CFDs are subject to a daily swap fee. You will not pay any overnight funding charges by trading Futures CFDs.
  • Cash CFDs will be subject to dividend adjustments, while this is not the case with Futures CFDs.
  • However, there will be a rollover every time the underlying Futures contract expires. Since the Cash CFDs are based on the spot price, there are no rollovers.
  • Cash CFDs will generally have lower spreads.
  • Cash CFDs have longer trading hours.

Which product should I trade?

If you are a scalper or day trader, you might prefer the Cash CFD products as they will have lower spreads and longer trading hours. They are subject to a daily swap charge, but if you close your positions prior to the market close, it will not affect you.

On the other hand, if you are a medium to long-term trader that is not so sensitive to spreads, you might prefer the Futures CFDs as you can avoid paying the daily financing charges. However, you should take note of the rollover dates.


(Featured image by Olya Kobruseva via Pexels)

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Angelique Moss is a London-based entrepreneur, writer, and traveller. The world of business, finance, and technology, is her preferred cup of tea. She also writes about the developments and discussions on health, art, luxury and media. A top writer for several Medium publications, she has published hundreds of widely read articles on investing, stocks, global markets, cannabis, and technology for multiple platforms. She is also interested in culture, history, and social affairs.