Table of Contents

Commodity Currencies

The 30-Second Summary

What are Commodity Currencies? A Plain English Definition

Imagine a small town, “Ironville,” whose entire economy is built around a single, massive iron ore mine. The town's local currency is the “Ironville Dollar.” When global demand for steel is booming, the price of iron ore soars. The mine in Ironville is shipping out tons of ore and receiving a flood of foreign money (let's say U.S. Dollars) in return. To pay its local workers and suppliers, the mine must exchange these U.S. Dollars for Ironville Dollars. This huge demand for the local currency causes its value to rise sharply. Suddenly, an Ironville Dollar is worth more U.S. Dollars than before. Life is good. But when a global recession hits, construction slows, and the price of iron ore plummets. The mine's revenues dry up. The flood of foreign money turns into a trickle. There's far less demand for the Ironville Dollar, and its value tumbles. That, in a nutshell, is a commodity currency. It's a national currency that behaves a lot like the “Ironville Dollar.” Its country's economic health is so tightly linked to the export of natural resources—oil, gas, copper, iron ore, coal, agricultural products—that the currency's value rises and falls with the global prices of those commodities. The most well-known commodity currencies, often called “comdolls,” include:

These currencies are a direct reflection of the world's appetite for raw materials. When the global economy is humming and building, demand for these materials is high, and the commodity currencies strengthen. When the global economy sputters, demand wanes, and these currencies weaken. For an investor, they are a real-time barometer of global economic health and a critical factor in analyzing businesses tied to these nations.

“The key to investing is not assessing how much an industry is going to affect society, or how much it will grow, but rather determining the competitive advantage of any given company and, above all, the durability of that advantage.” - Warren Buffett 1)

Why It Matters to a Value Investor

A value investor seeks to buy wonderful businesses at fair prices. The core of this process involves calculating a company's intrinsic_value based on its ability to generate predictable, growing cash flows far into the future. Commodity currencies throw a giant wrench into the predictability of those cash flows. Here’s why this concept is not just for currency traders, but is fundamental to value investing:

In short, commodity currencies are a powerful force of macroeconomics that can directly impact a company's bottom line. For the value investor focused on the long-term fundamentals, understanding this force is not optional; it's a core part of rigorous risk assessment.

How to Apply It in Practice

The goal for a value investor is not to become a currency speculator trying to predict the future direction of the Australian Dollar. That is a fool's errand. The goal is to understand the risks and opportunities that currency fluctuations create for a specific business you are analyzing.

The Method

Here is a simple framework to incorporate this concept into your investment analysis:

  1. Step 1: Identify the Exposure. When looking at a company, ask these questions:
    • In which country is the company domiciled and what is its primary currency for reporting and paying expenses (like salaries)?
    • From which countries does it generate the majority of its revenue?
    • From which countries does it source its key raw materials or products?
    • If any of these answers involve a commodity-driven economy (like Canada, Australia, Chile, etc.), you have identified a potential exposure.
  2. Step 2: Analyze the “Currency Mismatch”. Look for a difference between the currency of a company's revenues and the currency of its costs.
    • Negative Mismatch (Margin Squeeze Risk): This occurs when a company earns in a foreign currency (e.g., USD) but pays costs in a commodity currency (e.g., CAD). A strengthening CAD will squeeze profit margins.
    • Positive Mismatch (Potential Tailwind): This occurs when a company earns in a strong, stable currency (e.g., EUR) but has significant costs in a commodity currency (e.g., NZD). A weakening NZD will lower its cost base and boost margins.
  3. Step 3: Check for Mitigation Strategies. A smart management team is aware of these risks. Look in their annual reports (in the “Risk Factors” or “Management Discussion & Analysis” sections) for evidence of:
    • Currency Hedging: Do they use financial instruments like forward contracts to lock in exchange rates? This can smooth out short-term volatility but doesn't eliminate the long-term risk.
    • Operational Hedging: Do they have a “natural hedge”? For example, a company that both earns revenue and has significant costs in the same foreign country is naturally hedged.
    • Geographic Diversification: Is the company so globally diversified that a swing in any single commodity currency has a muted impact on its overall results?
  4. Step 4: Stress-Test Your Valuation. This is the most crucial step. When you build your financial model to estimate a company's intrinsic_value, don't just use the current exchange rate. Create a “worst-case” scenario.
    • Ask yourself: “What happens to this company's earnings and my valuation if its key commodity currency strengthens by 20%? What if the underlying commodity price is cut in half?”
    • If the business is still profitable and your thesis still holds under this pessimistic scenario, you've found a resilient company. If the valuation collapses, the company may be too speculative and lack a sufficient margin_of_safety.

Interpreting the Result

The result of this analysis is not a simple “buy” or “sell” signal. It's a deeper understanding of risk.

A Practical Example

Let's compare two hypothetical companies to see this principle in action: “Canuck Oil Drills Inc.” (based in Alberta, Canada) and “American Airlines” (based in the USA). Both are heavily impacted by the price of oil, but in vastly different ways mediated by the Canadian Dollar (a commodity currency).

Company Profile Canuck Oil Drills Inc. American Airlines
Home Country/Currency Canada (CAD) USA (USD)
Primary Revenue Source Sells crude oil on the global market, priced in USD. Sells plane tickets, primarily priced in USD.
Primary Cost Driver Labor, equipment, and services paid for in CAD. Jet fuel, priced globally in USD.

Scenario 1: Oil Price Soars (e.g., to $120/barrel)

Scenario 2: Oil Price Crashes (e.g., to $40/barrel)

Value Investor Takeaway: A value investor analyzing Canuck Oil Drills must recognize that its profitability is a function of both the oil price and the CAD/USD exchange rate. To invest safely, they would need to model earnings at various oil prices and exchange rates and demand a very large margin_of_safety to protect against the inherent volatility. Conversely, when analyzing American Airlines, the primary focus is the direct impact of fuel costs, a simpler (though still challenging) analysis. The commodity currency adds a complex, second layer of risk and volatility to the Canadian company.

Advantages and Limitations

Strengths

(Of using this concept in your investment analysis)

Weaknesses & Common Pitfalls

1)
While Buffett is talking about companies, the same principle of “durable advantage” applies to economies. A country overly reliant on a single commodity lacks economic diversification, making its “advantage” less durable and more cyclical.