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Global diversification: Are you doing it right?

04 December 2018Bellwood Capital

Most investors would agree that diversification is a good thing, but how many of us really understand what it means? This is a question posed by David Nathanson, Global Equity Specialist at Bellwood Capital, who believes that all too often, South African investors misperceive global diversification as fleeing risk.

“Diversification is about managing risk. It is not about avoiding or eliminating risk, which cannot be done without sacrificing investment goals. It also isn’t about trading one risk for another, presumably lesser, risk, nor should it be about taking risk indiscriminately for the sake of diversification. It is about making good investments, but spreading them across different risks,” Nathanson explains.

With this in mind, he goes on to address two misconceptions that many South Africans have about global diversification:

1. Moving your assets from South Africa to the UK is not global diversification


South Africa is an emerging market country with significant political and currency risks. The local stock market represents less than 1% of the global opportunity set. This, says Nathanson, doesn’t make South Africa a bad place to invest, but it does make it a risky place to invest everything, which is what many local investors do.

“For those South Africans who have decided to invest offshore, there often seems to be a significant bias towards the UK – possibly because the UK is familiar: Shared history, language overlap, similar time zones, etc. The idea is that the UK, a more developed market, has lower political and currency risk. Global diversification done.”

Nathanson points out two problems with this thinking. “First, the UK only represents about 4% of the global opportunity set. Second, as Brexit has made it abundantly clear, the UK also has political and currency risks. The UK can still be a great place to invest, just not too much.”

The answer also isn’t to move everything from the UK and concentrate it somewhere else, like Australia, Nathanson adds. “This doesn’t solve the problem, it just moves it. Outside of the United States, no single country represents more than 10% of the global opportunity set, and even the Americans would do well to consider the rest of the world.

“Global diversification means avoiding overconcentration to any country and taking advantage of the widest opportunity set possible: South Africa, UK, USA, Switzerland, Canada, Australia, Hong Kong, Japan, Europe, and so on,” Nathanson explains.

2. The argument that “other places have risks too” is not a valid case against diversification


A common counter-argument that Nathanson says he hears when making a case for global diversification is that other countries have their own problems, and “fleeing” South Africa is just “swapping one devil for another”. This argument, he says, misses the point of diversification.

“First, global diversification isn’t about fleeing one country for another, and in doing so exchanging one concentrated risk for another. This doesn’t manage risk, it just transfers it somewhere else.

“Second, global diversification as a strategy doesn’t rely on finding places without risk. As the first point of this article suggests, no such place exists. Instead, it relies on spreading exposure between risks that are less than perfectly correlated.

“To the extent that we can find two investments with similar merit that have different risks, it is better to hold both than just the one. Our risk of loss is lower because the probability of both risks playing out is lower than the probability of any single risk playing out. Similarly, if we can find many good investments with different risks, it is better to hold many than just two,” Nathanson explains.

Global diversification remains the best way to find many good investments with different risks, he says. “This does not mean that indiscriminate diversification is a good strategy. Making inferior investments for the sake of diversification is a big mistake that will result in poor returns. Fortunately, having a wider opportunity set makes it easier to achieve diversification without sacrificing investment quality or returns.

“In a nutshell, diversification is about exposing yourself to a wider opportunity set in order to find many good investment opportunities with uncorrelated risks. If you want to manage your risk properly, invest globally,” Nathanson concludes.

 

 

 

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