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Commodities diversification: is it worthwhile?

Useful asset classes are low cost, readily understood, easily tradable, and exhibit one or more of the following characteristics:

  • A long-term track record of delivering positive real returns
  • Diversifying properties that lower your portfolio’s overall risk
  • Can protect your wealth during bouts of inflation or deflation
  • Investable using accessible, liquid, low-cost index-tracking funds or ETFs.

By those criteria, commodities are a shoo-in.

Now let’s dive into the difference that commodities diversification has made to UK investment portfolios.

Many happy returns

The chart below shows how various 60% equity portfolios performed when diversified with varying commodities allocations. The latter’s share ranges from 0% to 40%:

Data from Summerhaven1, S&P GSCI TR, BCOM TR, JST Macrohistory2, JP Morgan Asset Management, The London Bullion Market Association, Measuring Worth and FTSE Russell. June 2023.

As the cyan line shows, the portfolio without commodities – the regular old 60/40 equities/gilts portfolio – comes dead last. Even more shockingly, the 60/40 equities/commodities portfolio leads the pack.

What gives?

Investing returns sidebar – All returns quoted in this piece are real annualised total returns. That is, they’re the average annual return (accounting for gains and losses) realised in a given time period. These returns include the impact of reinvested dividends and interest, but strip out the vanity growth delivered by inflation that does nothing to boost your actual spending power. Dollar returns for commodities have been converted to GBP.

How an allocation to commodities improves portfolio diversification 

The tables below show the difference commodities diversification makes in greater detail for passive investment portfolios.

We look at annual returns from 1934-2022, because this is the longest time period we have investable commodity data for. 

60% equity portfolios and commodities diversification

The engine of each portfolio is 60% UK equities. Diversification is provided by various allocations to government bonds (gilts), commodities, cash, and gold, as shown in the next table.

I’ve also included a 100% equities portfolio for comparison. Each portfolio is rebalanced back to its target asset allocations at the end of each year.

  60/40 e/b 60/30/10 e/b/c 60/20/20 e/b/c 60/10/10/10/10 e/b/c/ch/g 60/40 e/c 100 e
Annualised return (%) 4 4.6 5.2 4.7 6 5.4
Best return (%) 66.4 61.7 56.9 55.4 47.3 103.4
Worst return (%) -45.1 -38.7 -32.4 -29.3 -25.6 -57
Volatility (%) 14.8 14 13.7 12.8 14.5 20.7
Sharpe ratio (%) 0.27 0.33 0.38 0.37 0.42 0.26

e = equities, b = bonds, c = commodities, ch = cash, g = gold 

The portfolio with the best annualised return is the 60/40 equities/commodities mix. This asset allocation even beats 100% equities into a cocked hat. 

Moreover, the 60/40 commodities-diversified portfolio earns a superior return with considerably less whipsaw volatility than its 100% equities rival.

I’ve used the Sharpe ratio to measure the risk/reward trade-off. The higher your Sharpe ratio, the better your risk-adjusted returns. Or, the more return you get per unit of risk as measured by volatility3

The 60/40 equities/commodities load-out has the highest Sharpe ratio in the table. That makes it the most rational portfolio of the set, if you believe that investors should choose the portfolio which offers the greatest return for a given level of volatility. 

The worst return row further demonstrates that high commodities allocations have mitigated some of the UK’s severest investing tests of nerve on record. 

Meanwhile the least volatile portfolio also happens to be the most diversified: 10% bonds, 10% commodities, 10% cash, 10% gold.

But that stability was achieved at the expense of return, compared to portfolios with higher commodity allocations. 

Curb your enthusiasm

On the face of it, ditching gilts4 for commodities led to a better outcome on every metric: whether that be average returns, volatility, or the Sharpe ratio.

But I’m not selling my bonds yet. I’ll explain why shortly.  

It’s also fair to say 100% equities doesn’t look worth the risk. The same would be true if we substituted global returns for the UK stock market, incidentally.5

In contrast, the better diversified 60/20/20 portfolio experiences much lower volatility than 100% equities. And it achieves much the same return.

80% equity portfolios and commodities diversification

  80/20 e/b 80/10/10 e/b/c 80/20 e/c
Annualised return (%) 4.7 5.4 5.9
Best return (%) 84.9 80.1 75.4
Worst return (%) -51 -44.7 -38.4
Volatility (%) 17.6 17 16.7
Sharpe ratio (%) 0.27 0.32 0.36

e = equities, b = bonds, c = commodities 

Once again, the key metrics improve as gilts are elbowed out of the portfolio by commodities. 

Notice though, that while 80/20 equities/bonds is better than the comparable 60/40 portfolio, 80/20 equities/commodities is worse than 60/40 equities/commodities. Especially in terms of the risk-reward ratio.

The mildly negative correlation between commodities and equities reduces volatility, and also generates a rebalancing bonus.

There was no need to keep upping the equity ante in pursuit of return when commodities were part of your portfolio mix over this particular timeframe.

Intriguingly, commodities’ long-term return was lower than equities from 1934-2022. But the two assets combined, outstripped equities alone. 

50% equity portfolios and commodities diversification

  50/50 e/b 50/30/20 e/b/c 50/50 e/c
Annualised return (%) 3.5 4.7 6
Best return (%) 57.2 47.6 34.3
Worst return (%) -42.1 -29.4 -23.9
Volatility (%) 13.7 12.3 14.4
Sharpe ratio (%) 0.26 0.38 0.41

e = equities, b = bonds, c = commodities 

The synergism between commodities and equities comes to the fore again with a 50/50 asset allocation. 

I have to counsel though that we can’t necessarily expect the two assets to play together quite so nicely in the future. That is why I don’t advocate ditching bonds. 

Rounding error fans should note that the 50/50 equities/commodities portfolio actually achieved a 5.96% annualised return versus 6.04% for 60/40 equities/commodities. That’s why the latter portfolio has a slightly higher Sharpe ratio. 

Interestingly, the 50/30/20 lock-up delivers the lowest volatility so far, along with a highly respectable annualised return. 

But if limiting the downside is your thing, just wait until you see the Permanent Portfolio results.

The Permanent Portfolio, but replacing gold with commodities

  25/25/25/25 e/b/ch/g 25/25/25/25 e/b/ch/c
Annualised return (%) 2.6 3.5
Best return (%) 21.2 20.5
Worst return (%) -11.4 -15.4
Volatility (%) 7.7 8.4
Sharpe ratio (%) 0.34 0.42

e = equities, b = bonds, c = commodities, ch = cash, g = gold 

The first column shows the standard Permanent Portfolio formulation of 25% equities / 25% bonds / 25% cash / 25% gold. This all-weather blend is hailed for its low volatility, wealth-preserving qualities. But its low long-term returns make it hard to recommend for most. 

Our second column swaps out gold for commodities. Now volatility rises just a smidge, but a significantly higher annualised return helps the portfolio to a 0.42 Sharpe ratio.

That’s the equal of anything else we’ve looked at today. Go tell the gold bugs!

When do commodities work?

The answer to this question explains why I won’t be swapping all my bonds for commodities (although I probably will exchange some).

Commodities have tended to work best during periods of economic expansion and rising inflation. See this table from the research paper Commodities for the Long Run by Levine, Ooi, Richardson, and Sasseville:

A table showing that commodities work best during conditions of rising inflation and/or economic expansion

Excess returns in USD for an equal-weighted commodities index.

The table also shows that commodities typically underperform in recessionary and falling inflation rate environments. 

Note, the table traces broad trends, but it isn’t saying commodities will automatically perform on cue.

For example, commodities added to investor’s woes during the Global Financial Crisis and the Great Depression. But they were a healing balm during the Dotcom Bust and 1972-74 oil shock (the latter a hideous stagflationary amalgam of economic torpor and galloping inflation). 

Think different

As passive investors we shouldn’t be tactically trading commodities every time there’s a recession warning. We’re interested in the strategic benefits each asset class can bring to our portfolio.

So it’s good to know that the findings above are also confirmed by other researchers who’ve investigated long-term commodity returns. These include Bhardwaj, Rajkumar, and Rouwenhorst (see The Commodity Futures Risk Premium: 1871–2018), and Dimson, Marsh, and Staunton (see the Credit Suisse Global Investment Returns Yearbook 2023). 

To that we can add Monevator’s findings about the unpredictable performance of diversifiers in UK investment portfolios in part two of this series.

On that measure, commodities improved portfolio outcomes 58% of the time when equities retreated, but actually made matters worse in 42% of downturns. 

To sum up our diversification dilemma: government bonds defend against recessions. Commodities typically don’t. 

And commodities are a partial hedge against inflation, whereas nominal bonds most definitely are not. 

That’s why I want both asset classes in my portfolio. 

What should my commodities asset allocation be?

Now you’re asking.

The optimal asset allocation can only be known in retrospect, because it’s dependent on unknowable variables.

Think future returns, the future correlation of asset class returns, and your particular blend of assets. 

Various sources offer a future expected excess return for commodities of 3%, so we might expect a 3.5% to 4% total return.

But expected returns are to be taken with a pinch of salt. 

Dimson, Marsh, and Staunton explain why nailing the right asset allocation is like trying to pin the tail on a donkey:

The optimal allocation to futures depends on the investor’s tolerance for risk. For an investor who was comfortable with the risk of a 60:40 equity: bond portfolio, they [Erb and Harvey] show that the optimal allocation would be 18% in commodity futures, 60% in stocks and 22% in bonds. Unsurprisingly, the optimal allocation to futures depended on the expected excess returns. With an expected excess return of 1%, the optimal allocation to futures fell to 3%.

Vanguard’s take is that a future optimal commodities asset allocation could lie anywhere from 0% to 15%. That’s according to its paper Commodity Investing and its Role in a Portfolio

But Vanguard’s base case scenario suggests an allocation to commodities of less than 5%, which is almost as good as saying: “don’t bother.”

Stock puppets

At this point, you might be throwing up tour hands and thinking, “I’ll just get my commodities exposure through commodity stocks.”

Sadly, Dimson, Marsh, and Stauton cite evidence that this won’t work:

…investors may also gain exposure to commodities through their equity investments, e.g. in mining, energy and agriculture-related stocks. GR [Gorton and Rouwenhorst] investigated this by comparing the performance of commodity futures with commodity company stocks. They concluded that the latter behaved more like other stocks than futures. They were not a close substitute. 

Commodity of errors

As you can probably tell, there’s no right answer. But returning to our original criteria for an investable asset class, let’s review the positive case for commodities:

  • A long-term track record of delivering positive real returns? Yes!
  • Diversifying properties that lower your portfolio’s risk? Yes!  
  • Can protect your wealth during bouts of inflation or deflation? Inflation, sometimes
  • Investable using accessible, liquid, low-cost index-tracking funds or ETFs? Yes!

The fail for broad commodities ETFs is they are not readily understood (albeit you could argue the same is true for bonds and gold).

On those grounds, plus the imperative to keep things as simple as possible – but no simpler – I wouldn’t blame anyone for saying, “Thanks, but no thanks,” to commodities. 

However, for an engaged passive investor like myself, I believe the case for commodities is compelling. Assuming I can find the right passive fund to invest in, of course. I’ll report back on this in part five of our series. 

But none of this means I won’t be unlucky. The optimal allocation to commodities could be zero during my investing lifetime. But I can only know that after the fact. That’s investing risk for you. 

Coming around to commodities

Here’s where I am at…

Equities have a higher long-run risk premium than commodities and so should be the portfolio mainstay. 

There’s a clear rationale for why commodities should be able to deliver a reasonable rate of return in the future, but nothing is guaranteed. 

Commodities are an attractive strategic diversifier due to their historically low correlation with equities and bonds.

The limits of a vanilla 60/40 portfolio were hammered home as if by a hammer-wielding maniac by the events of 2022. And we’ve previously deep-dived the benefits of a more diversified portfolio

I’m particularly keen on not being solely dependent on my bonds for diversification – just in case we’re on the wrong end of a rising interest rates bond super-cycle. 

I’d also like to be less reliant on equities for growth. Multi-decade bear markets can affect this asset class, too.

So the fact that commodities deliver good long-term returns and offer some insulation from inflation is another big tick for me. 

I’m also a fan of owning every useful asset class in reasonable amounts. 

Less than 10% in commodities appears to me next to irrelevant, but I don’t think I’m brave enough to own 20%. 

I haven’t fully made up my mind yet. It’ll depend on how convincing I find the available broad commodities ETFs once I’ve completed my research into those. 

Either way, I’ll probably ease my way into commodities slowly. Perhaps 5% of the portfolio at a time, over the course of a year or so.

In the meantime, I want to dig into how well commodities stack up as an inflation hedge for UK investors. So that’s next in the series. (Subscribe to ensure you see it.)

Take it steady,

The Accumulator

  1. Bhardwaj, Geetesh and Janardanan, Rajkumar and Rouwenhorst, K. Geert, “The First Commodity Futures Index of 1933,” Journal of Commodity Markets, 2020. []
  2. Òscar Jordà, Katharina Knoll, Dmitry Kuvshinov, Moritz Schularick, and Alan M. Taylor. 2019. “The Rate of Return on Everything, 1870–2015.” Quarterly Journal of Economics, 134(3), 1225-1298. []
  3. i.e. annualised standard deviation []
  4. UK government bonds. []
  5. We can’t get global equity returns before 1970. And the UK stock market’s longer track record enables our comparison to encompass a wider range of economic conditions. But UK returns are broadly in line with global returns and are probably a better benchmark than exceptional US returns that may not be repeated in the future. []
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Weekend reading: Are you rich enough?

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What caught my eye this week.

Those of you who needed a lie down in a dark room after the middle class etymology wars we had a couple of months ago might want to pre-load on painkillers before clicking though to hear what FIRE V London thinks it takes to be proper rich.

The ever-interesting F-ing-Fat-FIRE blogger has re-run his numbers, and he now concludes that:

“…based on the people I know who are at least 2x as rich as me, I would say the amount needed to be ‘enough’ is around £50m. That seems to be the number where conventional economic activity stops, and I don’t discern any perceivable ‘just a couple more years’ nor any obvious pegging.

£10m definitely isn’t enough to reset mindsets these days – though it might have been 20 years ago.”

Clearly bonkers numbers, even for most of the considerably more affluent than thou readers of Monevator.

But I’m sure plausible given the circles FvL moves in. London is like that.

Of course we can all see that the hedonic treadmill is permanently jammed on a steep incline – and that if we can afford sufficiently powerful binoculars then we’ll always be able to spot some Joneses down the road who are much richer than us.

Clearly it’s an infinite game you can’t win. Even the world’s temporarily richest billionaires invariably suffer reversals.

But it’s easier to sound wise about this than to consistently live it.

Doing my own thing. Mostly.

Personally, I occasionally get jealous of bloggers who made a fortune – or even just make enough – as well as university friends who made their nut at global banks (often in technical roles, not even profit centers) by their late-40s, and the fund managers I once daydreamed of becoming.

Not to mention all the self-made multi-millionaires I’ve seen do that deed in what we shall ironically call my professional life.

So the feeling is there sometimes, fine. But I acknowledge it and it passes.

To that extent, rather some of them than me.

Have a great weekend.

p.s. Judging by the comments last week, we have quite a few 1990s indie music fans among our subscribers. If that’s you, then you might be interested to read about what some cassette tapes from the era are fetching at auction. I once owned six of that top ten in physical form – and at least three as cassettes, including Pearl Jam’s Ten. Alas all sold long when I ‘liquidated my position in solid-state music’, as a friend put it at the time. Ho hum. Fine. Again.

[continue reading…]

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Photo of Warren Buffett: an admirer of passive investing

The tragedy of passive investing is that it’s a strategy that’s long on evidence but short on influencers. While crypto interests can deploy crack squads of A-Listers to win hearts, minds, and wallets, there aren’t any global megastars promoting index funds and posting about their “passion for dollar cost averaging”.

Except for one. Warren Buffett, The Oracle of Omaha, the MechGodzilla of Masterful Insight, and one of the greatest investors and entrepreneurs of all-time… that Warren Buffett has been telling anyone who’ll listen to get into index funds and stay there, since 1993:

By periodically investing in an index fund, for example, the know-nothing investor can actually out-perform most investment professionals. Paradoxically, when ‘dumb’ money acknowledges its limitations, it ceases to be dumb.

– Berkshire Hathaway shareholder letter 1993

And Buffett’s belief in the efficacy of passive investing has not wavered since: 

In my view, for most people, the best thing to do is to own the S&P 500 index fund. People will try and sell you other things because there’s more money in it for them if they do.

– Berkshire Hathaway Annual Shareholder Meeting 2020, CNBC

In between times, Buffett’s candour on the challenges of investing, and his gentle pointers on how to resolve them, amount to the best and most authoritative guidance on managing your own portfolio that you’ll ever read. 

Two countries separated by a common language: Buffett talks from a US perspective, hence he always mentions a US S&P 500 index fund as his tracker of choice. We recommend that UK investors think from a global perspective and go for a global tracker fund.

Why passive investing?

Here’s Buffett’s brief explanation that strikes at the heart of the passive vs active investing debate:

A lot of very smart people set out to do better than average in securities markets. Call them active investors. Their opposites, passive investors, will by definition do about average. In aggregate their positions will more or less approximate those of an index fund. 

Therefore, the balance of the universe—the active investors—must do about average as well. However, these investors will incur far greater costs. So, on balance, their aggregate results after these costs will be worse than those of the passive investors.

Berkshire Hathaway shareholder letter 2016

Here’s the TL;DR version:

I think that the people who buy those index funds, on average, will get better results than the people that buy funds that have higher costs attached to them, because it’s just a matter of math.

– Berkshire Hathaway Annual Shareholder Meeting 2002, CNBC 

Low costs make all the difference

It takes a huge leap of faith on the part of a new investor to believe that cheaper really is better.

Surely a field of human endeavour that attracts the brightest and the best can’t be dominated by ‘supermarket own-brand’ products such as index trackers?

Frankly, you couldn’t wish to hear the truth from a greater source of integrity than Buffett:

Costs skyrocket when large annual fees, large performance fees, and active trading costs are all added to the active investor’s equation. 

Funds of hedge funds accentuate this cost problem because their fees are superimposed on the large fees charged by the hedge funds in which the funds of funds are invested.

A number of smart people are involved in running hedge funds. But to a great extent their efforts are self-neutralizing, and their IQ will not overcome the costs they impose on investors. Investors, on average and over time, will do better with a low-cost index fund than with a group of funds of funds.

– Berkshire Hathaway shareholder letter 2016

Forget picking stock market winners and losers

Granted, it’s a blow to the ego – but Buffett also cautions you against backing your own smarts:

The goal of the non-professional should not be to pick winners – neither he nor his helpers’ can do that – but should rather be to own a cross-section of businesses that in aggregate are bound to do well. A low-cost S&P 500 index fund will achieve this goal. 

– Berkshire Hathaway shareholder letter 2013

The helpers’ Buffett mentions are the ranks of advisors, organisations, and journalists whose livelihoods depend on gulling you into thinking you can gain an edge:

Wall Street makes money on — one way or another — catching the crumbs that fall off a table of capitalism and an incredible economy that, you know, nobody could’ve ever dreamed of a couple hundred years ago.

But they don’t make money unless people do things (laughs) and if they get a piece of them.

And they make a lot more money when people are gambling than when they’re investing. It’s much better to have somebody that’s going to trade 20 times a day and get all excited about it, just like pulling the handle on a slot machine.

– Berkshire Hathaway Annual Shareholder Meeting 2022, CNBC

Many people confuse patient investing (doing everything to tip the odds in your favour over the long-run) with speculation (the impulse to get rich quick).

Buffet warns:  

The main danger is that the timid or beginning investor will enter the market at a time of extreme exuberance and then become disillusioned when paper losses occur. (Remember the late Barton Biggs’ observation: “A bull market is like sex. It feels best just before it ends.”)

The antidote to that kind of mistiming is for an investor to accumulate shares over a long period and never sell when the news is bad and stocks are well off their highs.

Following those rules, the ‘know-nothing’ investor who both diversifies and keeps his costs minimal is virtually certain to get satisfactory results.

Indeed, the unsophisticated investor who is realistic about his shortcomings is likely to obtain better long-term results than the knowledgeable professional who is blind to even a single weakness.

– Berkshire Hathaway shareholder letter 2013

The remedy is simple:

So I would pick a broad index, but I wouldn’t toss a chunk in at any one time. I would do it over a period of time, because the very nature of index funds is that you are saying, I think America’s business is going to do well over a – reasonably well – over a long period of time, but I don’t know enough to pick the winners and I don’t know enough to pick the winning times.

– Berkshire Hathaway Annual Shareholder Meeting 2002, CNBC

Buffett on active management 

It’s entirely natural to believe we can buy in an expert to solve our problems. Indeed, Buffett agrees that outperforming active managers exist.

It’s just the odds are stacked against you finding one of the few:

The problem simply is that the great majority of managers who attempt to over-perform will fail. The probability is also very high that the person soliciting your funds will not be the exception who does well.

Further complicating the search for the rare high-fee manager who is worth his or her pay is the fact that some investment professionals, just as some amateurs, will be lucky over short periods.

If 1,000 managers make a market prediction at the beginning of a year, it’s very likely that the calls of at least one will be correct for nine consecutive years. Of course, 1,000 monkeys would be just as likely to produce a seemingly all-wise prophet.

But there would remain a difference: The lucky monkey would not find people standing in line to invest with him.

Finally, there are three connected realities that cause investing success to breed failure. First, a good record quickly attracts a torrent of money. Second, huge sums invariably act as an anchor on investment performance: What is easy with millions, struggles with billions (sob!). Third, most managers will nevertheless seek new money because of their personal equation – namely, the more funds they have under management, the more their fees.

The bottom line: When trillions of dollars are managed by Wall Streeters charging high fees, it will usually be the managers who reap outsized profits, not the clients. Both large and small investors should stick with low-cost index funds.

– Berkshire Hathaway shareholder letter 2016

Confidence trick

Buffett has a theory that helps explain why successful people often find it hard to heed his passive investing advice:

Over the years, I’ve often been asked for investment advice, and in the process of answering I’ve learned a good deal about human behavior. My regular recommendation has been a low-cost S&P 500 index fund. To their credit, my friends who possess only modest means have usually followed my suggestion.

I believe, however, that none of the mega-rich individuals, institutions, or pension funds has followed that same advice when I’ve given it to them. Instead, these investors politely thank me for my thoughts and depart to listen to the siren song of a high-fee manager or, in the case of many institutions, to seek out another breed of hyper-helper called a consultant.

That professional, however, faces a problem. Can you imagine an investment consultant telling clients, year after year, to keep adding to an index fund replicating the S&P 500? That would be career suicide. Large fees flow to these hyper-helpers, however, if they recommend small managerial shifts every year or so. That advice is often delivered in esoteric gibberish that explains why fashionable investment ‘styles’ or current economic trends make the shift appropriate.

The wealthy are accustomed to feeling that it is their lot in life to get the best food, schooling, entertainment, housing, plastic surgery, sports ticket, you name it. Their money, they feel, should buy them something superior compared to what the masses receive.

In many aspects of life, indeed, wealth does command top-grade products or services. For that reason, the financial ‘elites’ – wealthy individuals, pension funds, college endowments and the like – have great trouble meekly signing up for a financial product or service that is available as well to people investing only a few thousand dollars. 

This reluctance of the rich normally prevails even though the product at issue is – on an expectancy basis – clearly the best choice. 

– Berkshire Hathaway shareholder letter 2016

This matters because the rest of society instinctively turns to the ultra-successful for its social cues. Buffett counsels against this course:

Human behavior won’t change. Wealthy individuals, pension funds, endowments and the like will continue to feel they deserve something ‘extra’ in investment advice. Those advisors who cleverly play to this expectation will get very rich. This year the magic potion may be hedge funds, next year something else. 

The likely result from this parade of promises is predicted in an adage: “When a person with money meets a person with experience, the one with experience ends up with the money and the one with money leaves with experience.

– Berkshire Hathaway shareholder letter 2016

Don’t panic!

Buffett is at his most reassuring when he reminds us that we can withstand future investing storms:

American business – and consequently a basket of stocks – is virtually certain to be worth far more in the years ahead. Innovation, productivity gains, entrepreneurial spirit, and an abundance of capital will see to that.

Ever-present naysayers may prosper by marketing their gloomy forecasts. But heaven help them if they act on the nonsense they peddle. Many companies, of course, will fall behind, and some will fail. Winnowing of that sort is a product of market dynamism.

Moreover, the years ahead will occasionally deliver major market declines – even panics – that will affect virtually all stocks. No one can tell you when these traumas will occur – not me, not Charlie, not economists, not the media. Meg McConnell of the New York Fed aptly described the reality of panics: “We spend a lot of time looking for systemic risk; in truth, however, it tends to find us.”

During such scary periods, you should never forget two things: First, widespread fear is your friend as an investor, because it serves up bargain purchases. Second, personal fear is your enemy. It will also be unwarranted. Investors who avoid high and unnecessary costs and simply sit for an extended period with a collection of large, conservatively-financed American businesses will almost certainly do well.

– Berkshire Hathaway shareholder letter 2016

One of the good guys

Buffett has long played the public role of an aging Good Wizard who reminds us that it’s not impossible for a fundamentally decent person to rise to the top. 

(And also that not every multi-billionaire has to spend their fortune on sending steel cocks into space. But I digress.)

To return to Buffett’s less celebrated role as a passive investing guru, I have one final quote for you that provides the strategic bedrock upon which to build a successful investment strategy:

You don’t need to be an expert in order to achieve satisfactory investment returns. But if you aren’t, you must recognize your limitations and follow a course certain to work reasonably well. Keep things simple and don’t swing for the fences. When promised quick profits, respond with a quick ‘no.’

– Berkshire Hathaway shareholder letter 2013

Take it steady,

The Accumulator

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Our Weekend Reading logo

What caught my eye this week.

Turns out Liz Truss really was useless – we don’t even need her to cause chaos in the UK mortgage market.

True, Britain’s Prime Minister for a day achieved in one Mini Budget what it’s taken nine more months of persistent inflation to deliver organically. But two-year swap rates have moved above where they peaked when Truss passed through office last September:

Source: Investing.com

As a result, banks have been hiking mortgage rates again – and even pulling their entire ranges for short periods. My recently secured five-year fix looked toppy in March. But it’s now cheaper than the best rate my bank offers today.

At least we’re not seeing a re-run of the LDI/pensions crisis of last Autumn. Unlike with that politically inspired drama, this time the markets are moving in an orderly fashion to reflect how core inflation is stubbornly sticking around, the Bank of England and the Federal Reserve will likely hike rates further, and that a subsequent slowdown will then see interest rates fall as soon as next year – though remaining at a higher level than was expected just a few weeks ago.

As best I can tell these changing expectations are being transmitted smoothly through the markets. Hence no more surprise blow-ups – at least not so far.

Rather we face all-too predictable pain for UK mortgage borrowers.

I do it for you

Long-time readers will remember I warned we should stress test our borrowing against coming higher rates a year ago.

Well, those higher rates are here and it’s a bit too late to do much about it.

According to the Resolution Foundation, the pain to come for individual borrowers who paid high prices for their homes when they remortgage could be worse than that felt in the 1980s:

The speed of rate rises today means that – for the households that have a mortgage – the income hit from higher rates this year is worse than anything seen in previous decades.

Although Bank Rate isn’t expected to reach the highs of the late 1980s and early 1990s, mortgaged households today are more leveraged than their historic counterparts. That means that, for a typical mortgagor, the rise in rates in 2023 alone is expected to increase repayments by 3 per cent of household income – or around £2,000. This is a bigger annual hit than at any time in almost five decades.

When repayments surged in 1989, as the Bank of England raised rates to nearly 15 per cent, the increase in repayments was only about £1,200 in today’s money for the typical mortgagor, or 2.4 per cent of household income.

The good news – for the government and the economy generally – is many more people now own their homes outright, as the graph in this week’s links below shows. I suspect that swapping out younger buyers for buy-to-let landlords will also limit the extent of the agony this crunch causes, too.

Don’t get me wrong – it could clearly go very Pete Tong, as we used to say in the years following Britain’s last big housing downturn in the early 1990s. I’m just looking for a ray of sunshine here.

Obviously it would help if mortgage rate rises leveled off soon. Their rate of increase on a graph looks like the ‘vert’ of a particularly gnarly skateboard ramp:

Source: Resolution Foundation

As someone who did time in their youth executing face-plants on such ramps trying to pull off a ‘180’, I’m acutely aware of the potential downsides.

The Shoop Shoop song

Naturally, these yield moves have consequences extending far beyond the mortgage market.

Bonds are back in the dumpster, for instance. The day you’ll be happy you own bonds again has been pushed out even further.

On the flipside, that’s good news if you’re a buyer today. You can get positive real yields on UK index-linked gilts again. With a bit of faff, you could protect the spending power of your wealth for decades to come and earn a little more on top by buying a linker ladder – all taking no risk, except for the opportunity cost of course.

More simplistically, annuity offers will get even more attractive. And savings rates on cash will continue to rise.

While I must confess to being a bit wrong-footed by this second coming of spiky interest rates, we shouldn’t be surprised that returning to economic normality has come with turbulence.

My metaphor for the consequences of the stop-start economic disruption of the pandemic and lockdown years was always a juddering machine that vibrates madly when you turn it off and on.

I’ve long had a particular image in mind – the ‘collating’ machine we used at my student newspaper to stitch together our weekly rag.

For a while I was the ‘collater whisperer’. One of only a handful who could get it to run smoothly.

But the process still took loads of misfired staples and mutant newspapers with three front pages stuck together before we got it dialed in.

Dizzy

Real life – stuff – is messy. Expectations in mathematically-inclined minds that you could suspend and then reboot the economy like pressing refresh on an Excel model were always wide of the mark.

As best I can tell, distortions caused by factories going offline and distribution networks getting snarled up produced momentous supply shocks. Concurrently, we saw (understandable at the time) huge infusions of State Aid and a surge in money supply.

Everything then reversing – stuff getting made, more money lying around to spend on that limited supply – ignited inflation. Putin put the boot in with his invasion of Ukraine. And central banks finally moved to try to put out the fire:

Some of that inflation now appears to have gotten ‘sticky’. Put prices up in the supermarket by 20% in a year, and people are going to want more money to pay for the shop. The Bank of England was pilloried for urging pay restraint; perhaps it was futile but this was what it feared.

I don’t think we’re in wage spiral territory yet. But we’re possibly in the foothills, with the directions starting to appear on the signposts. And while this is definitely not a UK-only problem, I believe Brexit has made it worse for us, introducing more frictional trading costs and crimping the flow of workers.

For the Blimps who voted for that benighted and benefit-free project, perhaps things won’t feel too bad. They own their own homes. Cash in the bank will pay a lot more. Mortgage rates will remain well below the near-legendary 1990 peak, enabling them to tell the struggling young that they don’t know their born while ignoring the total costs of purchase.

The pension triple-lock continues, too, protecting the elderly from the sharpest end of inflation.

It all seems like another boot in the face for Britons under 45 though.

Any dream will do

Some might say a big housing crash would be great for young people. But I don’t think the UK economy could endure a 30-50% fall in house prices to approach mid-1990s price-to-earnings ratios without suffering a near-depression. Which wouldn’t be anyone’s idea of fun.

Ho hum. Hopefully we’ll muddle through.

Indeed I wish it were otherwise but I’ve a feeling we’re going to be trudging through the aftermath of the pandemic, the lockdowns, ‘Brexit getting done’, and these inflation and rate shocks – and follow-on tax rises – for many years. The finally-proven liar and disgraced Boris Johnson along with gift card experience prime minister Liz Truss appearing like memento mori at annual events such as Remembrance Sunday to – well – remind of us when and where it all went wrong.

But we can only play the cards we’re dealt. There will be opportunities – there already are – both for our professional lives and for our portfolios.

Just don’t expect the powers-that-be to make it easy for you. They haven’t got the money and they’ve run out of wriggle-room.

Have a great weekend.

p.s. Gosh but 1991 was a terrible year for music until Nevermind arrived. Still miss you Kurt.

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