Recommended home bias for Switzerland / Europe?

Hi - I currently have 20% of my equity stocks portfolio in a swiss indexed, (and 75% world index, 5% US)
The idea behind it is to diversify and protect against currency variations, but I feel 20% is likely overweight. My retirement plan (Pillar 2, Pillar 3) are in CHF so the actual % is closer to 35% for my full assets. That being said, I can’t access / withdraw from these accounts before retirement.

Question: what is the recommended home bias for CH or EU residents?
Do we actually need a home bias, if we already have retirement accounts in our local currency?
Is our salary (if in the same currency as residency country) a form of protection as well?

8 posts were merged into an existing topic: Home bias: how much CH for a broad diversified portfolio?