The Windy City currently is rated below investment grade by Moody's Ratings, which is considered to be junk bond status, as is its public-school system. Chicago Board of Education bonds are a large holding of the Van Eck Vectors High-Yield Municipal ETF (NYSEARCA: HYD), which yields over 4.25%, more than double the yield on the higher quality iShares National Muni Bond ETF (NYSEARCA: MUB) Contrast Chicago's woes to well-run Nashville. Nashville has a stable AA2/AA investment grade bond rating, and is currently home to a number of large companies. Tens of thousands of Tennesseans are employed by companies such as Vanderbilt University Med Center, HCA Healthcare Inc (NYSE: HCA), Kroger (NYSE:KR) and Nissan.