Imagine a massive, bustling farmers' market. The price of apples isn't set by some government official in a distant office. It's determined right there, on the spot. If there's a bumper crop of apples (high supply) and not many buyers (low demand), the price drops. If a frost ruins most of the crop (low supply) but everyone wants to bake apple pies (high demand), the price shoots up. The price “floats” freely based on the real-world forces of supply and demand. A free-floating currency works exactly like that, but on a global scale. The “apples” are a country's currency, like the U.S. Dollar (USD), the Euro (EUR), or the Japanese Yen (JPY). The “market” is the global Foreign Exchange (Forex) market, where trillions of dollars are traded every day. The value of the U.S. Dollar isn't set by the U.S. Treasury. It's determined by the millions of participants in the market buying and selling it. If international investors believe the U.S. economy is strong and they want to buy U.S. stocks or bonds, they need to buy U.S. Dollars first. This increases demand, and the dollar's value rises. If the Federal Reserve prints a lot of money (increasing supply) or the U.S. trade deficit widens, the dollar's value might fall. This is the opposite of a “fixed” or “pegged” currency, where a government declares its currency is worth a specific amount of another currency (e.g., “1 of our Pesos will always equal 1 U.S. Dollar”). This is like a state-run store where the price of a loaf of bread is fixed by law, regardless of wheat harvests or baker strikes. Most major world economies today use a free-floating system because it acts as a natural shock absorber for the economy.
“We've not been good at macroeconomic predictions, and we've done okay. What you really want to do is find a business that's a wonderful business, that's run by able and honest people. The macro side will take care of itself, over time.” - Warren Buffett
Buffett's wisdom here is key. As value investors, our job isn't to become currency speculators. It's to understand how these floating values can impact the wonderful businesses we seek to own.
For a value investor, who obsesses over the long-term, predictable earnings power of a business, a free-floating currency system introduces a significant variable. It's a layer of complexity that must be understood and respected, not ignored. Here's why it's critical:
You don't need a PhD in international finance to handle currency risk. You just need to be a diligent business analyst. The goal is to understand the nature and magnitude of the exposure.
Let's consider two fictional U.S. companies in a world where the U.S. Dollar (USD) suddenly strengthens significantly against the Japanese Yen (JPY). Let's say the exchange rate goes from 1 USD = 100 JPY to 1 USD = 130 JPY.
The Impact of a Stronger Dollar:
Aspect | Global Gadgets Inc. (Affected) | Main Street Bakers Inc. (Insulated) |
---|---|---|
Revenue | A Gadgetron priced at ¥13,000 used to be $130. Now it's only $100. Revenue in USD plummets by 23% even if they sell the same number of units. | No direct impact. A loaf of bread still sells for $5 in Ohio. |
Profit Margin | To compete, they might have to lower their Yen price, further hurting profits. Their USD-reported profits will be crushed. | No direct impact. Their costs (flour, labor) and revenues are all in USD. |
Stock Price Reaction | The market, seeing the lower USD earnings, will likely punish the stock, even if the underlying business in Japan is healthy. | The stock price will depend on the performance of its Ohio bakeries, not on Forex markets. |
Investor's Takeaway | An investor must deeply understand this currency exposure. The business might be cheap, but is it cheap enough to compensate for the risk of a persistently strong dollar? A large margin_of_safety is non-negotiable. | An investor can focus almost entirely on the business fundamentals: store traffic, pricing power over bread, local competition, etc. The analysis is simpler and more predictable. |
This example shows that Global Gadgets isn't necessarily a “bad” company, but the investment case is far more complex. An investment in Main Street Bakers has fewer moving parts, which is a quality highly prized by value investors.
(From a macroeconomic and investor transparency perspective)
(From a value investor's perspective)