Following on from our discussion last week on risk weightings (see Risk weightings and portfolio weightings – part 1), some examples might help clear up any remaining confusion.
Risk ratings in practice
Twenty years ago Fairfax Media was a monopoly-style business with a lock on classified advertising, the so-called rivers of gold. Its performance was relatively stable and so too, therefore, was its share price. Between January 1994 and January 1999, the share price hovered between $2.50 and $3.50. But the internet had already been born and during the late 1990s it became increasingly clear that – one way or another – it would have a profound effect on the media industry.
A smart assessment of Fairfax's business risk back then would have taken account of the potential impacts of disruption – both positive and negative – even while its share price meandered along. As things turned out, when the market finally caught up, the initial assessment of the internet's likely effect was positive, and in 2000 the stock rose to over $6 before starting its long slide to below a dollar as the true impact has become clear.
So in 1997, Fairfax's business risk might have been considered higher than its share price risk, but the former has gradually fed into the latter as the market's short-term focus has rolled over to its longer-term prospects.
It can also happen the other way around. A good fund manager like Perpetual, for example, is a high-quality business in a cyclical industry. Whilst its long-term underlying value is relatively stable, being tied to its competitive advantages and the long-term growth in savings and sharemarkets, over the short-term the market might impose lots of swings in its share price due to sentiment surrounding the market's ups and downs. That explains why it has a 'Med-high' share price risk rating even while its business risk is considered 'Medium'.
Max portfolio weightings
Finally, to portfolio weightings and how best to use them. This is our best guess – yes, lots of guesses, we know – at the maximum weighting an average investor might want to have in a stock at any point in time.
The phrasing is important. We use the word ‘weighting' rather than ‘allocation’ because this figure represents the most you should have in the stock at any point in time – not just when you first buy into a stock. Note also that it is ‘maximum recommended’ rather than ‘recommended’. In most cases you’ll want to have a bit less than our suggested figure.
In practice, what does this mean? When acting on a Buy recommendation, it makes sense not to fire all your bullets at once. Start with a weighting a bit below the maximum recommended. That way you give the stock a bit of room to rise before you hit the maximum recommended level and the opportunity to increase your holding at lower average prices if the stock falls (assuming the underlying value has fallen by less).
What this figure also implies is that when a stock does well you should be taking money off the table as the price rises, thus ensuring your holding doesn’t breach the maximum recommended weighting.
Also note that the maximum recommended weighting, like the risk ratings, is intended to be independent of our feelings towards a stock's actual valuation – not least because it takes account of the very real possibility of our being wrong. So the maximum recommended portfolio weighting won't change even if we move a stock from Buy to Sell.
The question popping into your head right now is probably this: ‘Does my portfolio include stocks, cash, managed funds and other investments or just stocks?’ Glad you asked. To calculate weightings, include all the money you have allocated to equity investment. If some is currently held in cash awaiting investment, then include that too. In that way when you sell something and increase your cash holding, it doesn’t mean all your other weightings go up.
One final point: There’s a temptation in value investing to call all overpriced stocks ‘risky’ and those that are ‘cheap’ low risk. Our assessment of business and share price risk, the recommendation guide and maximum portfolio weighting offer a more extensive and useful interpretation of risk, a point we hope to have nailed home in this article.
Whilst we try to make these ratings as objective as possible, being human we will sometimes fall short. Also, if pushed to give an overall verdict, we'd probably concede that the maximum weightings in particular are on the conservative side of things, because our focus is to protect somewhat less savvy investors – we take the view that more experienced investors can, and no doubt will, make their own assessments.
Most of all, though, we hope our risk ratings and portfolio weightings get you thinking more deeply about the risks involved in owning shares, and encourage you to keep a keen eye on weightings as share prices move around.
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