A massive hedge fund that shut itself to outsiders is crushing it

Billionaire Michael Platt decided to close his hedge fund firm, BlueCrest Capital Management, to outside money last year as investors pulled out.
BlueCrest now focuses on managing Platt's and employees' money — and has had a huge year, returning 40%, according to a Bloomberg News report.
The firm decided to trade with high levels of leverage, or borrowed money, Bloomberg reported.
Last year, the then $9 billion firm received a wave of redemptions from big investors, like pensions and endow