‘Have you ever heard of the coffee can portfolio?’
I was having lunch with Preston Athey, the outstanding investor behind T. Rowe Price’s Small-Cap Value Fund when he asked me this question.
I had heard of it, which I think surprised him a little because I was only 12 years old when it came out, and it is not a mainstream idea. I knew all about it, though, because the coffee can portfolio is one of those classic ideas that aficionados of finance don’t forget.
I want to tell you about the coffee can portfolio in what follows. You won’t find an easier or more effective way to manage your stocks than this.
It all began with Robert Kirby, then a portfolio manager at Capital Group. He first wrote about the coffee can idea in fall 1984 in The Journal of Portfolio Management. ‘The coffee can portfolio concept harkens back to the Old West, when people put their valuable possessions in a coffee can and kept it under the mattress,’ Kirby wrote. ‘The success of the program depended entirely on the wisdom and foresight used to select the objects to be placed in the coffee can to begin with.’
The idea is simple enough: You find the best stocks you can and let them sit for 10 years. You incur practically no costs with such a portfolio. And it is certainly easy to manage. The biggest benefit, though, is a bit more subtle and meaningful. It works because it keeps your worst instincts from hurting you. In his paper, Kirby told the story about how his idea came about.
‘The coffee can idea first occurred to me in the 1950s,’ Kirby writes. Then he worked for a big firm that counseled individuals on their investments. He had a client he worked with for 10 years whose husband died suddenly. She inherited his stock portfolio, which she moved to Kirby’s care. Looking at the portfolio, Kirby writes:
‘I was amused to find that he had been secretly piggybacking our recommendations for his wife’s portfolio. Then I looked at the size of the estate. I was also shocked. The husband had applied a small twist of his own to our advice: He paid no attention whatsoever to the sale recommendations. He simply put about $5,000 in every purchase recommendation. Then he would toss the certificate in his safe-deposit box and forget it.’
In doing this, a wonderful thing happened. Yes, it meant his portfolio had a number of broken stories worth $2,000 or so. Small positions. But he also had a few large holdings worth $100,000 each.
The kicker, though, was this: He had one jumbo position of $800,000 that alone was bigger than the total value of his wife’s portfolio. As Kirby writes, ‘[It] came from a small commitment in a company called Haloid; this later turned out to be a zillion shares of Xerox.’
That is an inspiring tale, a triumph of lethargy and sloth. It shows clearly how the coffee can portfolio is designed to protect you against yourself – the obsession with checking stock prices, the frenetic buying and selling, the hand-wringing over the economy and bad news. It forces you to extend your time horizon. You don’t put anything in your coffee can that you don’t think is a good 10-year bet.
Poor Kirby had been diligently managing the wife’s account – keep up with earnings reports, trimming stocks and adding new positions. All the while, he would have been better off if he followed the idler’s creed and just held onto his ideas.
This example reminds me of the work of Thomas W. Phelps, much-forgotten investment thinker who has since become one of my favorites. Like Kirby, Phelps also believed in the power of ‘buying right and holding on.’
Why don’t more people hold fast? Phelps writes that investors have been conditioned to measure stock price performance on a quarterly or annual basis, but not business performance.
One memorable example he uses (among many) is Pfizer, whose stock lost ground from 1946-49 and again from 1951-56. ‘Performance-minded clients would have chewed the ears off an investment adviser who let them get caught with such a dog,’ Phelps wrote. But investors who held on from 1942-1972 made 141 times their money.
Phelps shows that if you just looked at the annual financial figures for Pfizer – ignoring the news, the stock market, economic forecasts and all the rest – you would never have sold the stock. It was profitable throughout, generating good returns on equity, with earnings climbing fitfully ever higher. Pfizer was a good coffee can stock.
So what stocks would you put in your coffee can today? I am giving more thought to the coffee can portfolio and what I’d stash in it. What about you?
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