#10: iShares Global Tech (IXN)

You would imagine that the iShares Global Tech ETF took a worldwide view of the technology sphere, and you'd be less than a quarter correct. Less than 25 percent of the fund is invested in companies domiciled outside of the U.S., with Japan leading the way at 5.1 percent. With heavily weighted top holdings such as Apple (AAPL, 12.5 percent) and Microsoft Corp. (MSFT, 8.9 percent), this fund shares a lot in common with most other broad tech funds.

Expenses: 0.47 percent, or $47 annually for each $10,000 invested.