Hi D, Re: Sector and Country specific mutual funds and associated risk..........
No, you should be fine with such things. Don't expect ex US funds to necessarily be correlated with the US markets. Sometimes they are and sometimes they move a direction of their own.
AIM is very robust when using it with funds. There's very little "single stock risk" that way. Sector funds in particular work well. Even if a single stock has a really bad earnings quarter their competition in the same sector is probably benefitting from their duress. So, it's a wash inside the sector fund.
It sounds like you're making good choices.
Best wishes,
OAG Tom
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