Invesco PowerShares announced new, lower expense ratios for its lineup of FTSE RAFI ETFs.

The FTSE RAFI ETFs provide an alternative to market-cap weighted portfolios since they are constructed using four fundamental measures to rank a company’s size: book value, cash flow, sales and dividends.

According to PowerShares, fundamental weighted ETFs have the potential to deliver higher returns with less volatility over time compared to cap weighted ETFs.

The ETFs affected by the change include:

PowerShares FTSE RAFI US 1000 Portfolio (PRF)
PowerShares FTSE RAFI US 1500 Small-Mid Portfolio (PRFZ)
PowerShares FTSE RAFI Basic Materials Sector Portfolio (PRFM)
PowerShares FTSE RAFI Consumer Goods Sector Portfolio (PRFG)
PowerShares FTSE RAFI Consumer services Sector Portfolio (PRFS)
PowerShares FTSE RAFI Energy Sector Portfolio (PRFE)
PowerShares FTSE RAFI Financials Sector Portfolio (PRFF)
PowerShares FTSE RAFI Health Care Sector Portfolio (PRFH)
PowerShares FTSE RAFI Industrials Sector Portfolio (PRFN)
PowerShares FTSE RAFI Telecom & Technology Sector Portfolio (PRFQ)
PowerShares FTSE RAFI Utilities Sector Portfolio (PRFU)

See the PowerShares ETF Directory for a complete listing.