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Good/Bad idea to have an ETF that encompasses another
You are overthinking it. Yes there is overlap between them, and you want to understand how much overlap there is so you don't end up with a concentration in one area when you were trying to avoid it. Pick two, put your money in those two; and then put your new money into those two until you want to expand into other funds. The advantage of having the money in an IRA held by a single fund family, is that moving some or all of the money from one Mutual fund/ETF to another is painless. The fact it is a retirement account means that selling a fund to move the money doesn't trigger taxes. The fact that you have about $10,000 for the IRA means that hopefully you have decades left before you need the money and that this $10,00 is just the start. You are not committed to these investment choices. With periodic re-balancing the allocations you make now will be adjusted over the decades. One potential issue. You said: "I'm saving right not but haven't actually opened the account." I take it to mean that you have money in a Roth TRA account but it isn't invested into a stock fund, or that you have the money ready to go in a regular bank account and will be making a 2015 contribution into the actual IRA before tax day this year, and the 2016 contribution either at the same time or soon after. If it is the second case make sure you get the money for 2015 into the IRA before the deadline.