The Commodity Cycle
When prices soar, everyone starts digging; by the time they finish, prices have already crashed.
Definition A recurring boom-and-bust pattern in the prices of raw materials like copper and oil. When prices surge, money pours into new extraction projects, but building mines and drilling wells takes years. By the time that new supply finally hits the market, demand has cooled, causing exceptionally violent price swings.
Mines Planned During a Boom Open During a Bust
Imagine a year when copper prices skyrocket. High prices convince mining companies to break ground on new projects. But scouting sites, securing permits, and building infrastructure takes years. You cannot simply produce more copper next month just because prices jumped today.
What happens to prices in the meantime? Because new supply cannot arrive immediately, prices climb even higher. The peak of prices is precisely when the most construction decisions are made. Then, several years later, all those projects open around the same time.
Now, the momentum flips. Flooded with a sudden surge in supply, prices collapse. As profits vanish, upcoming projects are shelved one after another. The excess capacity lingers for years, a state known as overcapacity. Eventually, supply tightens again, and prices start to climb back up.
When this roller coaster lasts unusually long and swings exceptionally wide, financial headlines call it a 'supercycle.' That label usually appears during prolonged demand surges, such as when major economies simultaneously industrialize and build cities. Still, 'supercycle' describes a trend in hindsight—it never guarantees how long the next wave will last.
Why Do Prices Swing So Dramatically?
There is a reason small imbalances cause violent price swings: both supply and demand are stubborn. In economics, how much buyers and sellers adjust their quantities in response to price changes is measured by price elasticity.
Look at the producers first. If prices spike, an existing mine cannot magically double its daily output, and launching a new mine takes years. Conversely, when prices plunge, mines cannot easily shut down. Building the facility cost a fortune, and idling the site will not bring that sunk cost back. As long as the market price covers the immediate operating expenses (variable costs), keeping the mine running loses less money than shutting it down.
Buyers face the same dilemma. Even if copper gets expensive, builders cannot stop using electrical wiring. Redesigning systems or switching to alternative materials takes years. In the short run, higher prices barely dent consumption.
What happens when both supply and demand are slow to react? Physical volume cannot adjust quickly to plug the gap. Therefore, the price itself must move dramatically to force the market into balance. A tiny mismatch between supply and demand triggers an astonishingly large swing in prices.
A Closer Look: Business Cycles vs. Countercyclical Investing
People often confuse the commodity cycle with the general business cycle. The business cycle describes the ups and downs of an entire economy, while the commodity cycle refers specifically to the price swings of raw materials. They sometimes overlap, but they can just as easily move in opposite directions. Both are descriptive terms for what happens, not strategic advice.
Why treat them separately? Because the long lead times required to build extraction capacity make commodity swings wider and longer than typical business cycles. Even in a booming economy, prices will drop if too many new mines come online at once. Even during a recession, prices can jump if a single massive mine halts operations.
Countercyclical investing operates on an entirely different level. The commodity cycle is the underlying market phenomenon, while countercyclical investing is the strategy a company or investor chooses in response. A price crash is the phenomenon; buying up mining assets at the bottom of that crash is the strategic response.
One final caution: these cycles do not run on a fixed timer. Technological breakthroughs can slash demand, or a massive nation can embark on a buying spree that redraws the map. The commodity cycle is not a clock that predicts the exact future—it is a framework explaining why commodity prices swing so violently.
🤔 Common misconceptions
When commodity prices rise, producers immediately extract more, quickly returning prices to normal.
Building new mines and oil wells takes years. During that lag, supply cannot keep pace, pushing prices even higher before the new output suddenly floods the market all at once.
The commodity cycle is just another name for the business cycle in the raw materials sector.
The business cycle tracks overall economic growth, while the commodity cycle tracks resource prices shaped by supply lead times. They can diverge—commodity prices can drop during an economic boom if new mines flood the market.
🧺 Where you meet it
A recurring cycle of extreme booms and busts caused by the multi-year lag between investments made during price spikes and the eventual flood of new supply.