[melvinroest]

I know this one!

Disclaimer: not a financial advisor, I do trade stocks as a hobby and am interested in personal finance.

Invest in an index fund. I am a fan of Vanguard based on that one good friend of mine is a fan of it (and he studied finance) and that one acquaintance who has this as a very big hobby is a fan of it. (early bitcoin investor, read way more personal finance books than me, etc.).

I only know specific vendors in The Netherlands. If I were you, make an ask HN about it. I'm sure that enough people on HN can give you some directions as even high frequency trading people frequent this site. My point is that people who work in the field of finance are probably happy to help and guide you with this question, but it's better to create an Ask HN than to dump all your lifesavings into Vanguard just because I say so :P

Disclaimer: I only have a portion of my lifesavings in Vanguard. I actually trade stocks more often, but that is a hobby, not a saving mechanism.