What you're asking for are "target date" ETFs. Similar (non-ETF) products exist in some shape at the big money managers like Vanguard and Schwab... Why don't t

What you're asking for are "target date" ETFs. Similar (non-ETF) products exist in some shape at the big money managers like Vanguard and Schwab... Why don't they exist as ETFs? This is a good question. It's probably only a matter of time before we see such products. Especially that given the current pace of things, there is a new ETF everyday in the US. I've personally looked into building target date ETFs through my work as well.