Chart Chart Chart

Why and how to diversify your portfolio

PG
Peter Garnry

Head of Equity Strategy

Summary:  Investors with only one or a few stocks in their portfolio are taking too much risk. This article looks at why and how diversification can maximize your potential for long-term gains by reducing risk.


The big risk: owning just a few stocks

Even the first steps of an investing journey should keep in mind that you are building a portfolio that will be with you for life. Sure, novice investors will often start their investment lives by testing the waters with the purchase of stock or two in companies they have some kind of connection to or feelings about. But this is rarely a setup for long-term success, and a diversified core portfolio is an important first principle of building more stable, long-term success.

When you only invest in a few companies, your entire portfolio depends on the performance of those companies. And while you can always see what happened in the rear-view mirror, no one can know how the future will shape up for a company. Imagine having built a portfolio consisting of Kodak, Blockbuster and Nokia stocks in the late 90’s after those three names stood atop years of spectacular gains. By the 2010’s all three companies had collapsed, leaving investors with virtually nothing. Worse still, investors having chosen individual shares often feel “married” to the position, hoping the prices will return to their highs and incapable of making the decision to exit the position, fearing the emotion that they will take a loss just at the wrong time, only to see the share prices soar again. That is the definition of “decision regret bias”

Diversification to the rescue

Diversification is the first tool investors should consider to avoid being caught with a risky portfolio where one event may jeopardize your savings and caught in the cross-fire of emotions that make decisions difficult. Diversification spreads your investments across sectors, countries and industries to lower your portfolio risk, while still maintaining exposure to the upward drift in the market over time. With a diversified portfolio a financial event may be negative for some of your investments but positive for others. Best of all, a broad exposure to the market triggers far fewer of the behavioural risks that choosing individual shares does. It’s quite a confidence boost to know that, with a more diverse approach the stock market has historically always come back over a long enough time horizon, even if individual companies may not.

The concept is shown in the graph above. As you can see, with a small number of stocks, the stock specific risk in your portfolio is high, but falls the more stocks you add and gets closer to the equity market risk, which is the risk you would have in owning shares in all listed companies in the world.

The power-up: Asset Allocation

s you can also see from the graph above, the effect of adding stocks decreases portfolio volatility risk the more stocks you add. If you want to diversify your portfolio further and thus lower the portfolio risk, you can add other asset classes like bonds to your portfolio, which historically usually don’t correlate closely with stocks for long periods – 2022 was a notable exception!
'

How to start diversifying your portfolio today

If you want to prioritise your savings well-being over emotional connection to investments, you’ll be happy to learn that it has never been easier to diversify your portfolio than today. That is because of two things:

  • Trading costs have fallen sharply (see Saxo’s new and very low commissions)
  • The deep exchange-traded-funds (ETF) market that offers a wide variety of powerful diversification options.

Diversifying your stock portfolio using single stocks

If you want to diversify your holdings you need a minimum of ten stocks across unrelated sectors. As inspiration, we have highlighted the two largest companies from each major sector in the US and Europe in the table below.

Diversify your stock portfolio using ETFs

If you want a thoroughly diversified portfolio, the best and most cost-effective way is through a global stock ETF. Simply put, basic ETFs are funds that hold a number of stocks but can be traded like a stock. The most popular ETFs track major stock indices. In Europe, the largest ETF providing exposure to global equities is:

Global equities: iShares Core MSCI World UCITS ETF

  • Saxo ticker: IWDA:xams
  • Contains: 1,500 stocks across 23 developed markets
  • Total assets: USD 72 billion
  • Dividends are not paid out but tax-efficiently reinvested into the fund
  • Annual costs are 0.2%

Add bonds to your portfolio to increase diversification

If you want to diversify your portfolio further, a relatively easy way to do so is by investing in a global bond ETF. In Europe, the largest ETFs providing exposure to global bonds is:

Global bonds: iShares Core Global Aggregate Bond UCITS ETF

  • Saxo ticker: AGGH:xams
  • Contains: around 14,300 bonds across key developed markets within government, corporate, and mortgage bonds
  • Total assets: USD 8.9bn
  • Dividends are not paid out but tax-efficiently reinvested into the fund
  • Annual costs are 0.1%

Below you can see a comparison of the performance (in USD) of the stock ETF, bond ETF and a portfolio with 50% in each. While the stock ETF has the best performance, there is less volatility in the 50/50 portfolio. Bonds have had a bad run due to a historic rise in interest rates, but if the next  five years would feature worse stock performance but fairly stable interest rates, the bond diversification would improve the outcome.

The point of diversification is that you should avoid taking company specific risks that you don’t have to take and get the most out of your savings while not having to worry.
Disclaimer

The Saxo Group entities each provide execution-only service and access to Analysis permitting a person to view and/or use content available on or via the website is not intended to and does not change or expand on this. Such access and use are at all times subject to (i) The Terms of Use; (ii) Full Disclaimer; (iii) The Risk Warning; (iv) the Rules of Engagement and (v) Notices applying to Saxo News & Research and/or its content in addition (where relevant) to the terms governing the use of hyperlinks on the website of a member of the Saxo Group by which access to Saxo News & Research is gained. Such content is therefore provided as no more than information. In particular no advice is intended to be provided or to be relied on as provided nor endorsed by any Saxo Group entity; nor is it to be construed as solicitation or an incentive provided to subscribe for or sell or purchase any financial instrument. All trading or investments you make must be pursuant to your own unprompted and informed self-directed decision. As such no Saxo Group entity will have or be liable for any losses that you may sustain as a result of any investment decision made in reliance on information which is available on Saxo News & Research or as a result of the use of the Saxo News & Research. Orders given and trades effected are deemed intended to be given or effected for the account of the customer with the Saxo Group entity operating in the jurisdiction in which the customer resides and/or with whom the customer opened and maintains his/her trading account. Saxo News & Research does not contain (and should not be construed as containing) financial, investment, tax or trading advice or advice of any sort offered, recommended or endorsed by Saxo Group and should not be construed as a record of our trading prices, or as an offer, incentive or solicitation for the subscription, sale or purchase in any financial instrument. To the extent that any content is construed as investment research, you must note and accept that the content was not intended to and has not been prepared in accordance with legal requirements designed to promote the independence of investment research and as such, would be considered as a marketing communication under relevant laws.

Please read our disclaimers:
- Notification on Non-Independent Investment Research (https://www.home.saxo/legal/niird/notification)
- Full disclaimer (https://www.home.saxo/en-hk/legal/disclaimer/saxo-disclaimer)

None of the information contained here constitutes an offer to purchase or sell a financial instrument, or to make any investments. Saxo does not take into account your personal investment objectives or financial situation and makes no representation and assumes no liability as to the accuracy or completeness of the information nor for any loss arising from any investment made in reliance of this presentation. Any opinions made are subject to change and may be personal to the author. These may not necessarily reflect the opinion of Saxo or its affiliates.

Saxo Capital Markets HK Limited
19th Floor
Shanghai Commercial Bank Tower
12 Queen’s Road Central
Hong Kong

Contact Saxo

Select region

Hong Kong S.A.R
Hong Kong S.A.R

Saxo Capital Markets HK Limited (“Saxo”) is a company authorised and regulated by the Securities and Futures Commission of Hong Kong. Saxo holds a Type 1 Regulated Activity (Dealing in Securities); Type 2 Regulated Activity (Dealing in Futures Contract); Type 3 Regulated Activity (Leveraged Foreign Exchange Trading); Type 4 Regulated Activity (Advising on Securities) and Type 9 Regulated Activity (Asset Management) licenses (CE No. AVD061). Registered address: 19th Floor, Shanghai Commercial Bank Tower, 12 Queen’s Road Central, Hong Kong.

Trading in financial instruments carries various risks, and is not suitable for all investors. Please seek expert advice, and always ensure that you fully understand these risks before trading. Trading in leveraged products may result in your losses exceeding your initial deposits. Saxo does not provide financial advice, any information available on this website is ‘general’ in nature and for informational purposes only. Saxo does not take into account an individual’s needs, objectives or financial situation. Please click here to view the relevant risk disclosure statements.

The Saxo trading platform has received numerous awards and recognition. For details of these awards and information on awards visit www.home.saxo/en-hk/about-us/awards.

The information or the products and services referred to on this site may be accessed worldwide, however is only intended for distribution to and use by recipients located in countries where such use does not constitute a violation of applicable legislation or regulations. Products and services offered on this website are not directed at, or intended for distribution to or use by, any person or entity residing in the United States and Japan. Please click here to view our full disclaimer.

Apple, iPad and iPhone are trademarks of Apple Inc., registered in the US and other countries. AppStore is a service mark of Apple Inc. Android is a trademark of Google Inc.