FYI: (This is a follow-up article.)
When Invesco, formerly known as Invesco PowerShares, purchased the Guggenheim ETFs, one of the jewels of the new acquisition was its nearly $10 billion family of target-maturity bond ETFs. The 18 existing BulletShares fall into two families that cover high-yield and investment-grade corporate bonds maturing in specific years. Now Invesco has filed for 10 ETFs that will cover municipal bonds.
Regards,
Ted
http://www.etf.com/sections/daily-etf-watch/invesco-add-new-bulletshares-family