19/10/2026
The Swiss franc is considered the world's strongest currency, a sort of rock in the storm. Since March of this year, however, it has lost about 7% of its value against the U.S. dollar and 3% against the crisis-prone euro. What’s going on? How should we interpret this?
The first question can be answered elegantly using purely mechanical reasoning. Drawing on the slogan coined by James Carville in 1992 (“It’s the economy, stupid”), one could say: “It’s the interest rate differential, stupid.” Interest rates in Switzerland are the lowest in the world: the Swiss National Bank’s key interest rate is 0%, while the federal funds rate in the U.S. stands at 3.75% to 4%. The interest rate differential for market-determined rates is even wider. The yield on 10-year government bonds in Switzerland is 0.5%, while the yield of 10-year Treasuries currently stands at 5.1%, with high volatility (last Wednesday, it even briefly exceeded 5.3%). Incidentally, this interest rate differential greatly annoys President Trump, and he suspects that sinister forces are at work, trying to exploit the American people. “They live off the U.S.” he said. However, market-driven bond yields suggest that the large interest rate differential may not simply be the result of malicious manipulation.
Given the wide interest rate differential and the fact that the Swiss franc has now partially replaced the yen as a source of funding for so-called “carry trades” (short in CHF, long in USD), the Swiss franc could actually be trending even weaker. However, exchange rates are determined not only by interest rates but also by fundamental factors. Key factors here include (i) political stability—currently somewhat less solid than it used to be in the U.S.—, (ii) the inflation differential, and (iii) differing trends in government debt. In the U.S., inflation stands at 3.7%, compared with a still relatively low 1.0% in Switzerland. This could, of course, change quickly, depending primarily on how energy prices develop. What remains, however, is the high and rapidly rising federal debt in the U.S. In August, it exceeded USD 40 trillion. In 2025, general government gross debt stood at 123.9% of GDP in the U.S., compared with just 40.7% in Switzerland.
We do not want to overhype the Swiss franc here. However, when we look at the big picture—especially considering Switzerland’s political stability—we can reasonably assume that the Swiss franc’s long-term upward trend and its status as a safe haven will continue. While the past is no guide to the future, it is still worth remembering that over the past 20 years, the Swiss franc has appreciated by about 50% against the U.S. dollar and by about 70% against the euro.
Moshe Strugano Attorney
Strugano&Co Attorneys