Why the Swiss franc is attracting carry-trade investors

The SNB’s 0% policy rate is putting the franc on the radar of global carry-trade investors. The strategy allows investors to borrow in a currency with low financing costs, then shift the money into currencies or assets offering higher returns. The difference between the borrowing cost and the investment return is the carry.

For years, the Japanese yen supplied the market’s most familiar funding route. The Swiss franc now offers a similar feature: a central-bank rate of 0%, combined with deep international use and an established swap market. Investors can use franc financing while seeking income in markets where interest rates are higher.

The shift matters in Switzerland because the franc’s monetary setting serves domestic policy goals while also influencing global capital flows. More overseas borrowing in francs can increase demand for Swiss currency instruments and tie the franc more closely to developments in markets far beyond Zurich and Geneva.

The trade carries a clear condition. Investors must expect the franc to remain stable or weaken against the assets they buy. Any appreciation raises the cost of repaying the original borrowing and can eliminate the income that attracted them in the first place.

Carry traders earn interest only if the exchange rate cooperates. An investor who borrows francs and buys a higher-yielding foreign asset receives the interest-rate differential as income. The position can still lose money if the franc rises enough before the loan is repaid.

That risk is especially relevant for Switzerland’s currency. The franc is widely treated as a safe-haven asset, which means investors often seek it during periods of political or financial stress. Such demand can push the currency higher precisely when carry trades are most vulnerable.

The mechanism works through the repayment cost. If a trader borrows francs, converts them into US dollars and later needs more dollars to buy back the same amount of francs, the currency loss can exceed the interest earned in the United States. A move that appears modest in the foreign-exchange market can therefore change the result of a highly leveraged position.

The franc’s established swap market makes financing easier to arrange, according to the source article. That market access supports the trade, while also allowing investors to build sizeable exposures. The larger the borrowed position, the less room traders have for an adverse currency move.

The yen’s changing outlook is creating space for alternative funding currencies. Japan spent years providing exceptionally cheap financing, making the yen the dominant source for carry trades. Recent Bank of Japan rate increases have altered that calculation, while Japanese and US authorities have intervened together to support the currency, according to Keystone-SDA’s report.

A stronger yen increases the cost of closing borrowed positions. Traders who need to buy back yen may sell foreign assets quickly, adding pressure across markets. That experience has pushed attention towards the franc, whose 0% SNB rate offers another low-cost financing option.

The move does not make the franc a risk-free substitute. Switzerland’s currency has a different market identity and reacts strongly to safe-haven demand. A trade designed around a stable or weaker franc can become exposed to the very forces that normally support it, including geopolitical tension and sudden volatility.

The franc’s international swap market gives institutions a practical channel for managing borrowing and hedging. Yet market infrastructure cannot remove the underlying exposure. Every franc-funded position still depends on the relationship between Swiss interest rates, foreign yields and the exchange rate.