Blackrock Inc. (BLK) is the world's largest asset manager with $6.3 trillion in assets under management as of December 2017. It is the beneficiary of a massive rush by investors to place their money in passive investments, rather than traditional actively managed mutual funds. Despite this, they are looking more and more like the Rodney Dangerfield (no respect) of the closed-end world and ironically it isn't because of bad closed-end fund performance.
I recently bought a pair of Blackrock NJ municipal closed-end funds which are selling at discounts to NAV of greater than