Putting it into perspective: the Swiss Franc is backed by mutual trust which is something money can't buy (investors have confidence on economic stability during times of crisis) since it's not pegged to another currency or gold despite them having gold reserves. They even have a 1000 CHF bill ($1,269) so it's a strong currency in that sense, they barely circulate it outside.

Do YOU consider the US Dollar a safe haven currency? If it were: it would've received the same status as the Swiss Franc. The reason why CHF is strong is due their trust & confidence alongside a stable economical & political system, put it in comparison: how many Americans have confidence in their own currency? Does the USA have a "truly" stable political system?

The thing is: Switzerland is neutral, meaning they have no incentive whatsoever on becoming belligerents in foreign wars (something the USA can't stay away from since they spend a LOT of money on the military). Their national debt is lower than it is in USA (140m CHF / ~$179m) while in comparison: America's debt has ballooned to around $38,200,000,000,000 if I recall.

It's also tied to their monetary policy (which is highly trusted) hence why they managed to keep inflation relatively low but inflation in America as a joke (no need to say how bad it is). Their interest rate is 0% (can't be said for US Federal Reserve: 3.75%) as Switzerland's goal is to ensure price stability long term while the USA is more on promoting maximum employment.