I've been thinking for a while about including a particular ETF in my portfolio from an area that I don't really understand, or where I find it better to put money in multiple stocks rather than one.
Do you have any ETFs in your portfolio, perhaps from just one sector, and if so, which ones?
Why would I want to expose myself to an area I don't understand? That's like boldly going into a test I didn't prepare for and expecting something other than a 5 in the result :D
Why do something like that? It's risky whether you have one share or a bundle. Invest for the long term in things you understand as much as possible.