Don't know about Switzerland, but most US brokers offer some kind of "target retirement date" fund, which automatically shifts from higher-risk assets to lower-risk as you approach retirement. VFIFX is one from Vanguard, for example. Pick one you like (just ask a coworker what they use, if you pick a big-name brokerage it really doesn't matter which one), shove your extra cash into it regularly, and forget about it. Then cross your fingers the market isn't actively crashing when you plan to retire (this is unlikely, but it does happen a couple times per century).
If you start to get into truly high wealth amounts (USD$500K+) you might consider hiring a wealth advisor, who can probably do better even after accounting for their fees.
> If you start to get into truly high wealth amounts (USD$500K+) you might consider hiring a wealth advisor
That's not nearly high enough for a "wealth advisor". Maybe a fee-only financial planner, but even then it's borderline.
Even when it crashes it's like 20% no? It's not actually that big of a deal.
The idea is that over a 40 year window that 20% (or more) crash is eventually going to rebound, so just sitting on the target retirement fund is going to do well over it's lifetime. As you get closer to retirement, and don't have the time to recover from the crash, the plan moves to safer investments.
Crashes can be a lot bigger than just 20%.
I’m sorry but 20% of a retirement fund is a lot of money.
It may be a lot of money but it shouldn't matter because you don't need all of it right away.