Why has Switzerland's central bank made a loss of 3 billion francs?

[BECKHAM]

Switzerland's central bank expects to have logged a loss of 3 billion francs ($3.5 billion) last year but why and what does this mean for Switzerland?

https://www.thelocal.ch/20240109/why-has-switzerlands-central-bank-made-a-loss-of-3-billion-francs ( for more...