Grossman raises currency fees

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After amassing more than $4 billion of assets and producing eye-popping performance this year, Sandy Grossman is raising the fees for his currency fund, taking a similar route to controlling growth and diversifying his investor base - without stemming profits -- that other big firms like Renaissance Technologies and Caxton were able to take before him.

The accomplished academic and director of the Center for Quantitative Finance at the University of Pennsylvania's Wharton School let investors know last month that he had closed the Class A shares of his Grossman Currency fund to new investments. The $1.8 billion fund's