PowerShares Capital Management has filed with the Securities and Exchange Commission to offer 31 new exchange-traded funds, rounding out its existing lineup of 37 such funds, Investor's Business Daily reports.

The new funds would also rely on enhanced indexes that PowerShares manages with a quantitative, technical analysis overlay. The so-called Intellidex indexing system uses computers to set weightings for stocks by tracking 25 various financial, momentum and valuation characteristics.

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