Sure, the underlying value of the bond fund might decline in value when the stock market is tanking, but that is fine, since I'm just using the income they generate to DCA across other investments. (allfinancialmatters.com)
This can put the investor at risk because unlike a mutual fund, ETFs trade continually throughout the day, often without a complete picture of the value of the bond fund holdings. (thenewsavvy.com)