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Commodities -- What Are They Worth?

Published in Investing on 13 June 2008

Can we put a 'fair' price on commodities, or just take a chance?

Commodities are becoming scarcer, and in general I buy the argument for investing in them. But is it enough to be in broad agreement with that trend, or do I need more concrete data before investing?

Take uranium, for example: Energy prices are soaring, and climate change has put nuclear energy back on the agenda for many countries. At first glance, I can imagine how this could push uranium prices higher. And it may. But if you'd invested in uranium last summer you'd have lost more than half of your money, and regardless of the long-term story, that would have hurt.

Admittedly, uranium is not the easiest metal to trade, but I think it illustrates my point -- I need more than just qualitative arguments, I need quantitative models.

And that's a problem, because so far I haven't found any. I've found data, and lots of it. And I've found acres of theory on the pricing of futures, but these are all functions on the spot price -- that's great if you're a hedge fund looking for arbitrage opportunities, but that's a different type of investing. What I need is something to indicate whether the underlying spot-price is worth buying, or selling.

Depending on the type of commodity, there's an array of factors that may be relevant to varying degrees. To mention just a few:

  •   the trend in demand;
  •   production volumes, and capacity;
  •   processing and transport capacity;
  •   known reserves;
  •   expansion plans.

And that's before considering more nebulous issues like geopolitics, and the weather.

For any particular commodity, I could try to determine the most significant factors, see how these factors relate to previous price trends, and devise some indicators of the price. In doing so, my model would be competing against models developed by large industrial producers and consumers of the commodity, as well as by professional traders and hedge funds, and they often get it wrong. What competitive advantage do I have to enable me to win in that game?

In that sense, commodities are very different from small-cap shares; there are no small-caps in commodities, and even the more obscure traded commodities are huge industries; since commodities are now in fashion, I can't imagine that any of them are under-researched.

One possible solution might be to take a pound-cost averaging approach, ignoring the short-term fluctuations and investing an amount monthly or quarterly, just as you might in a FTSE tracker. Buying Exchange Traded Commodities (ETCs) is as easy as buying shares, and there's no stamp duty, so this could be an efficient strategy. And rather than selecting specific products, the risk can be spread by buying ETCs that represent a general basket of commodities.

I intend to look into specific commodities in more detail, but I may have to accept that attempting to determine a 'fair' value may be futile.

If you want to buy ETCs, or any shares, remember that with Motley Fool Sharebuilder, you can buy shares for no commission until June 30.

More: Commodities -- Spoiled For Choice

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Comments

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anshah 15 Jun 2008 , 10:46am

Hi, Is it really possible to buy commodities (ETCs) on a pound cost averaging way? I tried it wit the Halifax sharebuilder service, and they refuse to buy the ETFS ETCs for me.

clivepease 15 Jun 2008 , 9:31pm

Aren't you missing out the most important difference between equity and commodity investing? Commodity values don't have the long-term upward tendency that share prices do. Shares tend to increase in value as companies grow and prosper, which is what makes buy-and-hold investing (particularly index investing) so Foolish. Commodity prices depend essentially on the balance between supply and demand, which can swing either way. Demand provokes price increases, but these will tend to be balanced out over time by new sources of supply. Technological advances can even destroy demand for a commodity, leading to a permanent fall in the price. The price of oil looks set firmly on an upward trend at the moment, but I have no doubt it will come down again eventually as people learn to use less and other sources of energy are developed. But the time-scale for all this is anyone's guess.

As a long-term investor, I keep well away from the commodities markets. As you point out, what competitive advantage do I have over all the professional traders and others?

RansomStark 16 Jun 2008 , 10:15am

I also have tried (in vain) to buy ETCs with the halifax sharebuilder. I think they are classed as warrents and this is something not allowed in the sharebuilder. Shame really. Instead I opted for one of the Lyxor Commodity ETFs, this as an ETF is allowed and gives access to a basket of commodities based on futures contracts.

Esquilax100 17 Jun 2008 , 3:07pm

Clivepease said:
Commodity values don't have the long-term upward tendency that share prices do.

It really depends on the time-scale you're looking at. Over the very long-term, inflation alone would be enough to drive nominal prices higher, even if supply was able to keep up with demand.

The difficulty is that the long-term drift is very irregular, with protracted periods of boom and bust. Where new sources of supply can be found and exploited, they are very capital intensive and take many years to bring on stream (at least in hard commodities); that investment only starts once a shortage is already established.

Jim Rogers is of the opinion that we are in period of boom as far as commodity prices is concerned, that there will be occasional corrections, but that we are far from the peak. My opinion, FWIW, is that he is more likely to be right than wrong.

- Padraig

Esquilax100 17 Jun 2008 , 3:11pm

Re Halifax Sharebuilder:

I'm not familiar with Halifax, but I see from their website that they only allow Sterling-quoted ETFs in their Sharebuilder account, so this would preclude many ETCs.

ETF Securities do a Sterling-quoted general commodity ETC: 'ETFS All Commodities £ DJ-AIGCI' (LSE: AGCP).

Not sure why they the Lyxor one would be allowed but not the ETFS.

- Padraig

RansomStark 19 Jun 2008 , 1:01pm

After double checking, the Halifax sharebuilder prevents me adding any sterling quoted ETC's, even though they are GBP they still class it as a warrant :(

trapperj 27 Jun 2008 , 6:57pm

Over the past 6 months ETFs in grain, agri commodities, coffee & gold have been the most successful investments in my portfolio. Nothing goes up forever or in a straight line but I don't plan on getting rid of them for a quite a while yet.

trapperj

graemeball 21 Aug 2008 , 7:25pm

It seems to me that a commodity ETF is a one-way bet on inflation / against paper money. I can't see any advantage that an ETF has over investing in the commodity *producers* via equities - at least then you're buying a business that makes money (pays a dividend) and has the potential for capital growth. Having said that, commodity producers are all way over-priced at the mo - if you don't already have a piece of the action you'd be better off buying inflation-protected bonds. Buying into commodities now looks like speculation rather than investing IMHO. May even be that we're heading for deflation since most banks are somewhat insolvent and hoarding cash, in which case locking in high rates via bonds might be the best bet.

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