ProFunds, which currently offers 12 exchange-traded funds, plans to offer 66 more, The Wall Street Journal reports. The offerings would increase the total number of ETFs offered in the U.S. by 25%.

The new ETFs will track more esoteric indexes, including the Russell 2000 and the S&P SmallCap 600, and focus on a variety of investment styles, including mid-cap growth and small-cap value.

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