The iShares iBoxx $ Investment Grade Corporate Bond ETF (NYSEArca: LQD) and other investment-grade corporate bond exchange traded funds have been popular destinations for income-hungry investors this year. In fact, many foreign investors have been gobbling up U.S. corporate debt. Higher-quality corporates also offer value. “It also looks relatively attractive versus high yield. At the…Click to read more at ETFtrends.com.