Schwab US Dividend Equity ETF doesn't have the highest yield, but it may still make the most sense for your portfolio.Schwab US Dividend Equity ETF (SCHD -0.58%) offers a 3.7% dividend yield, which might fall a little shy of the yield that dividend investors are looking for. And for that reason, it could be flying under investor radar screens even though it is a very compelling dividend-focused exchange-traded fund (ETF). Here's why you need to look at more than the yield when you consider Schwab US Dividen ...