Professional currency management: Key concepts and tools for large portfolios

Building a good investment portfolio is very similar to the process of cooking a recipe. You need ingredients, incorporate them in the right measure and at the right time, and correct them throughout the process to achieve an irresistible dish. Currencies would be the salt and pepper.

All experts agree that one of the ingredients that must be included in any good portfolio, and which is often overlooked, is currency, the element that provides the perfect touch and balance. It's important to analyze the impact of currency on a portfolio, what currency diversification is, the use of carry trades, and currency hedging.

This is how currencies impact a portfolio

Currency risk is known as the fluctuation that a certain asset has in a portfolio due to the revaluation or devaluation of two different currencies. For example, for a European investor, purchasing a dollar-denominated asset, such as gold or an American stock, implies currency risk if not hedged.

If the stock rises 5% that year, but the dollar falls 10% against the euro, the investor will most likely lose money due to the currency effect. The same thing happens the other way around: the stock may fall, but the dollar may rise and the investor may then earn a positive return.

This brief example illustrates how important it is to consider the impact of foreign currencies on any portfolio. But they don't just influence profitability; they can also serve as protection and investment depending on market conditions.

Hard currency or currency protection

Most investors, especially those in countries with highly volatile currencies, seek to protect themselves in hard currencies first. Currencies that tend to be more stable over time are known as hard currencies, although they are also affected by inflation.

In this segment, the dollar, Swiss franc, pound sterling, and euro play a leading role because they are more reliable currencies. We must not forget that money is trust. Therefore, for a Hispanic American investor, exchanging their local currency for these “strong” currencies provides protection against the volatility that their home currency may experience.

Beyond protection, large institutional investors often prefer to invest in assets denominated in one of these currencies because they provide a more stable and diversifying role. They are not only buying European or American stocks or bonds, but also the currency. It can be seen as a double investment.

Diversify a portfolio by currency

When building a portfolio, risk management is just as important, if not more so, than the pursuit of profitability. Therefore, to better manage risk, one of the most commonly used techniques is to diversify by currency type, rather than by asset type.

An investor in euros who only invests in euros or euro-denominated assets may be more affected by a possible future devaluation of the euro against the dollar or the Swiss franc. However, if the portfolio is diversified across several currencies, it would be less affected in the event of a devaluation of the home currency. This is especially important for those in areas with currencies that are not considered strong.

Investing in currencies: the carry trade

Currencies should not only be perceived as a risk to protect against or an asset with which to diversify, but they also offer investment opportunities that are little known but widely used by professional investors. In fact, it is very common for large fortunes to use the carry trade technique.

The carry trade is nothing more than borrow in a currency with low interest rates, as the Japanese yen usually does, to invest in another currency with higher rates, such as the Australian dollar. This can be done with many others, such as the Swiss franc instead of the yen, and any other currency that has higher rates.

This difference between the interest rates of two different currencies is reflected in FX forwards. The forward curve shows the cost or gain of hedging a currency based on that rate difference, which can affect international investments.

Hedging currency for business or asset protection

Managing this currency risk is very important for maintaining margins in a business or preserving assets from this volatility. When investing in certain assets, such as fixed income, it is thus highly recommended to implement a hedging strategy.

Currency hedging strategies are usually carried out using forwards, which are derivative products that allow the future purchase or sale exchange rate to be fixed at the time of the transaction. This is very important for international business and investment as well. To carry out more complex operations of this type, it is recommended to do so with the help of Forex market experts.

Forward strategies as a protection option

For investors or companies with recurring exposure to global currencies, forward portfolios can be a fundamental instrument. These types of strategies combine various forward contracts with different maturities and varying quantities. For example, a company that makes frequent payments between dollars and Swiss francs can contract this type of portfolio in order to cover payments at different terms and thus ensure a more competitive and stable exchange rate between currencies.

The Swiss franc is vying for the Japanese yen's throne.

The Japanese yen has been the currency of choice for carry trade due to low interest rates in Japan. However, in 2025, with interest rates rising in Japan and falling in Switzerland, a curious shift is taking place. The Swiss franc (CHF) has become the currency with the most stable and predictable coupon, which, combined with rate cuts, means that financing in francs is now cheaper than financing in yen.

Switzerland, a winning formula

Switzerland has the perfect recipe to stay on the podium as a financial capital - and to go further. The tradition, innovation and sophistication of its private banking attracts investment.