Investors have always dreamed of getting access to big private equity and hedge funds, which have enriched institutional investors for decades. These days they finally can. Since August, investors with accounts managed by Fidelity have been able to access a Blackstone offering that functions like a hedge fund (but follows mutual fund rules). Kohlberg Kravis Roberts has a publicly traded closed-end fund that buys loans and high-yield debt. And $50,000 can now buy you a piece of a Carlyle private equity fund (though SEC rules on the latter still mandate that buyers have a minimum $1 million in assets).