Why I'm selling shares in my 'forever holding'

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Why I'm selling shares in my 'forever holding'

To maintain a diverse portfolio, I generally won't let a holding increase in value to more than 10% of the total value of the hypothetical Share Sleuth portfolio. I get nervous way before that, though, if I have doubts about the business or the valuation implied by its share price. I think Games Workshop (GAW) is a very good business, but I'm not at all sure about its share price.

To keep things simple in articles, I compare a single year's profit figure with the market value of a company to gauge whether it's cheap or expensive. This is a universal method that most investors understand. But it's not the way I really think about valuation. I base my judgements on return on capital. I look back over the years to see how profitable a firm has been in the past and decide how profitable it will be in future. Most often, I will average return on capital over sufficient years to be confident I have caught the performance of the company through thick and thin.

Return is just another word for profit, so if you know how much capital a firm is employing, it's easy to work out how much profit it would be making if the current year were typical, by multiplying capital employed by the average return on capital. I use an average because profits vary a lot, and I don't think a single year's profit is a reliable way to measure the value of a firm. Averaging works better for companies that aren't changing much.

Games Workshop owns a hobby, Warhammer, that involves collecting, modelling and playing fantasy war games. It controls virtually every aspect of the hobby: the design and manufacture of models and game systems, many of the stores that sell them, and the books and magazines that promote them. So long as it keeps hobbyists happy, it has a captive market. That's why I think it's a good business.

As you might expect, return on capital has been healthy. It averaged about 15% in the first six years of this decade. In the year to May 2017, though, profitability doubled to 30%. Then things got even better. In the first half of the year that ends in May 2018, Games Workshop made as much profit as it did in the whole of 2017. With another six months of profit to add, some traders believe the company broker's forecast of 60% profit growth for the full year is an underestimate.

Much has changed at Games Workshop in recent years, and those initiatives seem to have borne fruit pretty much all at the same time. To give you a flavour, it changed the material models are made from to reduce the cost and improve the intricacy of the models. It slimmed down stores to a more economical single staff member format. It relaunched its venerable fantasy game in a new guise, Warhammer Age of Sigmar, and launched a new edition of Warhammer 40,000, a similar game set in the future.

Games Workshop has improved its marketing, established popular websites to promote the hobby and sponsored a major gaming convention. I think it's more efficient, giving customers a better product and promoting it better.

But I wonder whether, now hobbyists have gorged on the new websites and splurged on new models, we can expect things to quieten down a bit. Games Workshop has changed, so the past may be an unreliable guide to the future, but the present may be an unreliable guide too.

If 2017's return on capital is the 'new normal', the enterprise is valued at about 24 times adjusted profit. If the forecast for 2018 is the new normal, it's valued at a more palatable 16 times adjusted profit. But if Games Workshop reverts towards past levels of profitability, its shares are very expensive.

Because it's such a good business, I will hold some shares forever, but I've reduced the portfolio's holding to 4%. The share price was £22.92. Next month I will consider putting the money to work in Alumasc (ALU).

This article was originally published in our sister magazine Money Observer. Click here to subscribe.

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