American ETF's or European ETF's? (For Swiss People)

[Dr.PI]

The optimal would be to have US ETF for US stocks (i.e. VTI) and European ETFs on everything else. There are couple of MSCI World ex USA funds already existing. They would need a complement by MSCI Emerging Markets. EIMI is an excellent choice for it.

Alternatively you split even more and use index funds in 3a for some geographies.

Splitting the world: creating tax-advantaged global stocks portfolio using funds in 3a account

An N+1st attempt to summarize information helping to optimize taxes arising from investments with ETFs. Some preliminary comments: I am going to mostly refer to MSCI indices. Their definition/composition can be found at msci.com (search for pdf factsheets). MSCI ACWI is all-countries index: 50 countries, 23 Developed Markets, 27 Emerging Markets. An up to date country weights can be found at ACWI | SPYY : SPDR® MSCI ACWI UCITS ETF (see Holdings → Geographical Weights).