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Taking a Fresh Look at Equity Commodity Funds

The old guard may offer some overlooked attributes.

Investors' interest in commodities has exploded over the past 10 years. Whether they're looking for diversification, an inflation hedge, or to speculate on rising prices, investors have plowed hundreds of billions of dollars into commodity-related offerings, both mutual funds and exchange-traded funds. A decade ago, commodity-related funds (at that time, only the open-end equity energy, precious metals, and natural resources categories existed) held just $10 billion in assets. Today, after gold has soared to $1,650 an ounce from $300 and oil has gone from less than $30 per barrel to north of $100, total assets in ETFs and open-end commodity-related funds hit an astonishing $320 billion in February.

Yet, it remains debatable whether the average investor even needs dedicated commodity exposure. Most equity investors already get a fair amount of commodity exposure through energy and materials equities. Those two sectors claim a combined 15.6% of the S&P 500 Index. The counter argument is that a small commodities weighting offers diversification benefits, but rising correlations in recent years potentially diminish those benefits. Neither do commodities always provide a perfect hedge against inflation or a falling dollar. That was the case for oil versus a weak dollar in the 1980s and gold versus inflation from the mid-1930s through the 1960s. (Not coincidentally, though, gold prices have soared since the U.S. went completely off the gold standard in 1971.) More broadly, we are currently 13 years into a commodity bull market. Despite calls that this time it's different and that resources will be permanently constrained, similar things were said during the last commodity boom in the 1970s and early 1980s. Human ingenuity has confounded such predictions in the past and there's always the potential for prices to revert to the mean.

But for those still interested in dedicated commodity exposure, it may be worth considering old-fashioned commodity equity funds. That's heresy in some circles these days as newer, more-targeted options have become the rage. But that consensus potentially creates a contrarian opportunity for equity commodity funds, especially in light of recent fund flows. While funds offering more direct exposure to commodities, which we briefly describe below, certainly have their benefits, they may not be the best option in all cases. Equity commodity funds (whether mutual funds or ETFs), on the other hand, offer several advantages, particularly for those investing taxable dollars.

Three Pipelines to Commodity Exposure
First, some background on the space and the different ways investors can gain access to it. There are three primary ways to invest in commodities and a bevy of funds specializing in each method. Equity funds invest in the shares of companies involved in extracting and processing raw goods with company balance sheets and related cash flows providing the conduits for exposure.

Other funds take a more direct approach and invest in derivatives that lock in exposure to the price movements of the underlying commodities. These funds typically track a commodities index such as the broad-based Dow Jones-UBS Commodity Index. They then collect interest income from the bonds, such as T-bills or Treasury Inflation-Protected Securities, which are used as collateral for the underlying derivatives. These funds can also potentially earn positive roll yield through their contracts. (Last year my colleague Abraham Bailin thoroughly reviewed different commodity vehicles, as well as the dynamics of roll yield.) Finally, there are ETFs that buy the actual commodity itself, such as  SPDR Gold Shares (GLD), which owns physical gold. This eliminates the potential risks that come with investing in gold miners, which have been notorious historically for poor capital allocation. But funds that own physical commodities are generally limited to precious metals with high value/size ratios. Overall, for someone looking for commodity exposure, these vehicles offer retail investors, and even institutions, a targeted means of doing so.

With prices rallying, many commodity funds have had the wind at their back over the past 10 years. Equity commodity funds (that is, those investing in oil & gas, mining, and agricultural companies) have performed the best, with those focused on precious-metals stocks gaining a monumental 18.7% annualized through February, making it the best-performing category overall during that stretch. The broad-based natural-resources category, whose funds typically hold two thirds of their assets in energy stocks and the remainder in materials, didn't quite match the precious-metals category, but still delivered an annualized 13.1% return, trouncing the S&P 500 Index's modest 4.2% gain. These two categories also beat the Dow Jones-UBS Commodity Index's 7% return. Although open-end, commodity broad-basket funds have not been around as long, that group has performed a bit better than the index over the past five years, falling 1.3% annualized versus a loss of 1.8% for the DJ-UBS bogy. Still, that was well behind the natural-resource category's 4.1% gain.

With such impressive results, one would think that dough would be rolling into equity commodity funds. But investors have shown a clear preference for the pure-play mutual funds and ETFs that invest in commodity derivatives and physical commodities, such as the wildly popular SPDR Gold Shares. Investors have deposited just $14.9 billion into the three categories of open-end equity commodity funds over the past three years versus $33.9 billion for commodity–broad basket funds. ETF equity commodity funds have fared better with $25.7 billion in inflows. But that still trails the $31.3 billion that has gone into commodity derivatives and physical commodity ETFs.  

No Perfect Solution
Clearly direct commodity exposure is winning out with investors, but every method has advantages and shortcomings to be aware of. Natural-resources stocks are considered imperfect commodity proxies because while company results and stock prices are linked to commodities, other factors also play a role. For instance, even though they have lower correlations with the broader equity market (that's especially true for precious-metals shares) than most stocks, they sometimes seem more driven by equity markets than commodity markets. There's also operating leverage, which tends to make equities even more volatile than even the commodities themselves. (This owes to the high fixed costs associated with getting the resources out of the ground. As prices shift, individual projects can suddenly become profitable or unprofitable, leading to big swings in share prices.) Finally, there are other company-specific factors such as business and management risk that don't exist when investing directly in commodities. So, investing in companies involved in extracting and processing commodities involves more variables and volatility than investing directly in commodities.

But does that always make direct commodity exposure a better choice? Investing in more-pure commodity plays carries drawbacks as well. As mentioned above, the very popularity of commodities as financial assets has arguably made them less effective diversifiers. Historically, commodities' low correlation with equities made them great additions to a portfolio. However, correlations between commodities and equities have risen in recent years. From 1991 to 2000, the DJ-UBS Commodity index showed essentially no relationship with the S&P 500 Index as measured by R-squared. But from March 2007 through February 2012, its R-squared with the S&P 500 rose to 35. So while commodities still offer diversification benefits, they may be less robust than in the past.

Plus, commodities didn't provide any downside protection when it was needed most during 2008’s financial crisis. Correlations among risky assets rose in unison that year, as the DJ-UBS Commodity index dropped 35.7%, just a touch better than the S&P 500's 37% fall. Commodities again failed to provide protection in 2011's choppy market as the index fell 13.3% versus the S&P 500's modest 2.1% gain. To be sure, equity commodity funds were no better, with natural-resources funds dropping 14% and equity precious metals funds plummeting nearly 21%.

Nevertheless, some investors might argue that they don't look to commodities for downside protection anyway, but rather an inflation hedge. Yet, even if commodities succeed in matching inflation, how far does that get you? As Yale's David Swensen has said, what's the point of owning commodities long term simply to match inflation? The goal of investing is to grow capital by earning a real return. Some open-end commodity funds that invest in derivatives, such as  PIMCO Commodity Real Return , try to deliver an additional layer of return by collateralizing their derivatives with some corporate bonds and TIPS rather than low-yielding T-bills. Any extra yield, though, also comes with additional risk and fixed-income exposure that investors may not have accounted for. That fund's credit-sensitive corporate bonds compounded the damage in 2008 when the fund lost 10 percentage points more than the index as it got caught in the financial crisis' liquidity crunch, falling 43.6%.

Today's low bond yields make life even more difficult for such funds. While yields have risen recently, the 10-year Treasury still yields a historically low 2.3%. PIMCO's Mihir Worah has said that with yields at such levels, the fund's income contribution could fall in the future. Managers can try to make up for this by actively managing their derivatives positions in an attempt to earn positive roll yield. But the increasing popularity of such strategies has made it harder to add value in this way. As financial buyers proliferate, funds could see decreasing returns from positive roll yield over time.

Reconsidering Equity Commodity Funds
Equity commodity funds, by contrast, may offer a better shot at earning long-term real returns, even if commodity prices stagnate or fall slightly. While commodity companies do carry business risk and operating leverage, these are also potential sources of added value. Resource companies can create value by finding, extracting and processing commodities for a profit and by (hopefully) efficiently allocating capital towards new projects, delivering cash flows and dividends along the way. (In addition to David Swensen, Warren Buffett recently addressed this issue in the latest  Berkshire Hathaway (BRK.B) letter in regards to gold.)

Resource companies don't necessarily need commodity prices to rise in order to make money either. Indeed, during the 90s, natural-resources funds still delivered positive returns even though oil prices fell for most of the decade. Oil dropped an annualized 9.3% from September 1990 through February 1999, but the average natural-resources fund still gained 3.7% during that time. Some of that performance owes simply to partial correlation with a rising equity market, but it also stems from the fact that many energy companies remained profitable during that time. Plus, currently reasonable valuations could add a modest margin of safety. The energy and materials sectors have two of the lowest price/fair value ratios as estimated by Morningstar's equity analysts.

But do natural-resources stocks offer better inflation protection than equities generally? Based on comparative correlations, that appears to be the case. Over the past 10 years, the average natural-resources fund had an R-squared of 65 relative to the DJ-UBS Commodity index, which is well above the S&P 500's R-squared of just 17 versus the DJ-UBS index. The average natural-resources fund also has a much greater correlation with CPI over the past decade, even though CPI does not fully account for energy costs relative to the typical consumption basket.

Finally, equity commodity funds tend to be more tax efficient than either commodity derivatives funds or funds that own physical precious metals, making them good candidates for taxable accounts. Because commodity derivatives funds hold bonds as collateral, they tend to throw off a fair amount of interest income. As a result, PIMCO Commodity Real Return, for instance, has gained 9% pretax annualized since its 2002 inception through February, but only 3.5% after taxes. Funds that own physical precious metals, such as SPDR Gold Shares, do not get especially favorable tax treatment either. The IRS considers physical gold and other precious metals collectibles, so gains are taxed at ordinary rates (up to a maximum of 28%) regardless of holding period.

Any of the vehicles mentioned here can be appropriate and effective in the proper context and for the right investor. Yet, given how much sentiment has swung away from equity commodity funds, it's worth remembering that these offerings have utility too, especially for those looking to add a commodity sleeve to a taxable account. In future columns, we will discuss some of our favorite equity commodity offerings. 

Kevin McDevitt has a position in the following securities mentioned above: GLD. Find out about Morningstar’s editorial policies.