BEWARE: FADS AND FASHIONS

So that is the theory. In practice, once you know what risk you can deal with, the effectiveness of your diversification strategy will depend on the degree of ‘correlation’ between various elements in a portfolio – that is to say, the extent to which different investments move in relation to each other – and combining them appropriately so the overall movement is in line with your expectations.

Government bonds, for example, are perceived as being a safer haven when markets are rough and equities are volatile. Property, on the other hand, has tended to protect against inflation over the long term, while also not moving in line with equities. Then there is cash, which depends entirely on interest rates for the level of income generated. To a greater or lesser extent, each asset class responds differently to external influences such as interest rates and inflation.

DIVERSIFY WITHIN ASSET CLASSES
Within each asset class, there are further opportunities for diversification. Within equities, for example, the returns of some companies versus others are not related in any way. Generally speaking, there is little correlation between the performance of, say, biotechnology stocks and utilities – such as water and electricity companies – as the market forces driving these two sectors can be completely different. However, as both types of company are listed on the stockmarket, they are both exposed to factors that affect the overall equity market, such as the impact of a government’s monetary policy, or general investor sentiment.

DIVERSIFY BY GEOGRAPHY
Geography also allows some of the impact of stockmarket movements to be dissipated, as your portfolio is not only exposed to the economics and government decisions of one country. Different markets are affected by different economic and financial factors and are therefore not perfectly correlated with one another. If the Far East performs badly, for example, it does not necessarily mean European stockmarkets will have fallen. And within Europe, there is the possibility of further geographical diversification, as the performance of each underlying European stockmarket will not necessarily be aligned with that of its peers.

Even so, all equities are capable of being affected by global influences and particularly when investor sentiment is involved – just consider the boom in telecom, media and technology stocks in the late 1990s and their subsequent collapse in 2000. The effects were global – although markets such as the US, which had greater exposure to these sectors, were more heavily affected, almost all countries suffered from the somewhat depressed equity environment during the bear market that prevailed through to early 2003.

DIVERSIFICATION WITHIN BONDS AND PROPERTY
The same sort of thinking can go for fixed interest investments and property. Government bonds, for example – and particularly those of more highly-rated countries such as the US or the UK – do not tend to behave in the same fashion as the so-called ‘sub-investment-grade’ corporate bonds that are issued by less financially secure companies. Within property, meanwhile, even commercial and residential property are not always correlated in the returns they offer but both can be illiquid.

If on the other hand you are comfortable with some volatility and are investing for the longer term – at least five years, say – you might decide to include a small element of equity exposure. Then again, if you are at the opposite end of the scale – a high-risk investor, who is perfectly happy with the ups and downs of markets – then you would most likely have the majority of your portfolio in equities.

USING COLLECTIVE INVESTMENT FUNDS
Collective investment funds are inherently diversified to some degree as they hold a number of different investments, generally in a particular market, industry sector or asset class. You could, to pick just a handful of examples, choose an emerging market equity, global technology, government fixed-interest, UK corporate bond or North American smaller companies fund.

As collective funds tend to hold 50 or more stocks, they automatically offer more diversity than just one or two stocks from these markets. By selecting funds, you hand over the job of stock diversification to expert fund managers, leaving you and your adviser to concentrate on the other main decision elements – asset class and geography.

If you are making your first steps into investment, or have only a small amount to invest, you can hand over even more of the decision process by targeting the broader portfolios of global equity or managed funds. Within these, the fund manager will diversify not only by type of company and level of exposure, but also by geography – and these portfolios usually involve some element of asset allocation as well.

Please note: The value of any equity, bond or property investment can go down as well as up and you may not get back the amount originally invested. Property is a specialist asset class and expert advice should be sought before making a decision to invest.

“the effectiveness of your strategy will depend on the extent to which different investments move in relation to each other.”

BRINGING IT ALL TOGETHER
When considering a portfolio’s proportions, many investors pursue simple strategies such as, for example, a ‘core & satellite’ approach. Typically, the ‘core’ portion would make up the larger part of your portfolio since it should be relatively less volatile and provide a solid base on which to build. The satellite investments would then add ‘spice’ to your portfolio by taking smaller positions in higher-risk regions, asset classes or industry sectors.

A lower or medium-risk investor might concentrate their core portfolio in cash, bond and property funds, or perhaps in an equity fund linked to larger, more highly regulated stockmarkets such as the US or the UK.

However, “multi-asset” funds are becoming the first choice for investors, be they lower, medium or higher risk investors, because the fund manager runs the fund for you without the distraction market noise.