The Looming Copper Supply Crunch
This infographic is presented by Western Copper & Gold Copper is among the three most used metals in the world, and high quantities of the red metal must be mined every year to meet global demand. The market for copper is equal to approximately $120 billion each year, which rivals that of even iron ore, the most widely traded metal. This is because infrastructure, technology, and automobiles consume massive amounts of copper. Behind silver, copper is the second best metal for conducting electricity. That’s why 75% of copper is used in electrical wires or for wiring in machinery. From power grids to motherboards, copper wire is indispensable to modern society. Copper is also essential for green energy and a sustainable future. For example, each generation of car needs more copper wiring: a gasoline-powered car needs 55 lbs, while hybrids and electric vehicles need 110 lbs and 165 lbs respectively. Further, it is estimated that an average of 3.6 tonnes of copper is used for each MW of wind power.
The Copper Supply Problem
The problem is: copper is not being discovered fast enough to meet upcoming demand. A study by Wood Mackenzie found that there will be a 10 million tonne supply deficit by 2028. That’s equal to the annual production of the world’s biggest copper mine (Escondida) multiplied by a factor of ten. There are several reasons for this. First, it now takes longer to go from discovery to production than ever before in the mining industry. Geological, environmental, and political challenges have brought the average lead time to around 20 years for new mines. Beyond all of the challenges above, the economics also have to line up. Thomson Reuters GFMS estimates that for new copper supply to be incentivized to come online, the copper price must be $3.50 per pound. Copper mining is all about grade or scale. The majority of global output comes from mega mines that have massive economies of scale to reduce costs. However, it has been a long-running trend that the grades for these established mines are dropping. A good example of this is Escondida, the world’s largest copper mine which is located in Chile. It produced 6% of global copper output in 2014, but the mine is facing a similar problem to that of other large copper projects: grades are dropping. In 2007, the copper grade was 1.72%, but it is predicted to drop to half of that in upcoming years. In fact, BHP Billiton is expecting a year-over-year decline of 24% between 2015 and 2016. Codelco is the world’s largest copper miner overall, and has recently announced a $25 billion investment plan to expand aging mines. It will spend $5 billion each year, but it expects no significant gain in production for its efforts.
The Coming Supply Gap
Add these factors together, and stocks of copper are at their lowest levels since 2008. Further, 4% of the world’s copper mining capacity falls off the table each year, which means that this must be replaced somehow. With 10 Escondidas needed to fill a 10 million tonne supply deficit by 2028, metals investors need to stay vigilant as changes in the market will be coming.
on Last year, stock and bond returns tumbled after the Federal Reserve hiked interest rates at the fastest speed in 40 years. It was the first time in decades that both asset classes posted negative annual investment returns in tandem. Over four decades, this has happened 2.4% of the time across any 12-month rolling period. To look at how various stock and bond asset allocations have performed over history—and their broader correlations—the above graphic charts their best, worst, and average returns, using data from Vanguard.
How Has Asset Allocation Impacted Returns?
Based on data between 1926 and 2019, the table below looks at the spectrum of market returns of different asset allocations:
We can see that a portfolio made entirely of stocks returned 10.3% on average, the highest across all asset allocations. Of course, this came with wider return variance, hitting an annual low of -43% and a high of 54%.
A traditional 60/40 portfolio—which has lost its luster in recent years as low interest rates have led to lower bond returns—saw an average historical return of 8.8%. As interest rates have climbed in recent years, this may widen its appeal once again as bond returns may rise.
Meanwhile, a 100% bond portfolio averaged 5.3% in annual returns over the period. Bonds typically serve as a hedge against portfolio losses thanks to their typically negative historical correlation to stocks.
A Closer Look at Historical Correlations
To understand how 2022 was an outlier in terms of asset correlations we can look at the graphic below:
The last time stocks and bonds moved together in a negative direction was in 1969. At the time, inflation was accelerating and the Fed was hiking interest rates to cool rising costs. In fact, historically, when inflation surges, stocks and bonds have often moved in similar directions. Underscoring this divergence is real interest rate volatility. When real interest rates are a driving force in the market, as we have seen in the last year, it hurts both stock and bond returns. This is because higher interest rates can reduce the future cash flows of these investments. Adding another layer is the level of risk appetite among investors. When the economic outlook is uncertain and interest rate volatility is high, investors are more likely to take risk off their portfolios and demand higher returns for taking on higher risk. This can push down equity and bond prices. On the other hand, if the economic outlook is positive, investors may be willing to take on more risk, in turn potentially boosting equity prices.
Current Investment Returns in Context
Today, financial markets are seeing sharp swings as the ripple effects of higher interest rates are sinking in. For investors, historical data provides insight on long-term asset allocation trends. Over the last century, cycles of high interest rates have come and gone. Both equity and bond investment returns have been resilient for investors who stay the course.
