The company said that the ETFs will provide investors with access to potential sources of outperformance with advanced indexing methodologies that reconfigure how index components are weighted.
The new Value ETF tracks the performance of the S&P 1500 Low Valuation Tilt Index, whereas the Momentum Tilt ETF seeks to track the S&P 1500 Positive Momentum Tilt Index, claims the wealth manager.
The Index uses an alternative weighting methodology to the S&P 1500 Index to ascertain which stocks with relatively low valuations are overweighed and those with relatively high valuations are underweighted.
The weight of each stock in the Index is proportionate to its market capitalization and sub-portfolio allocation, according to the firm.
As of 30 September 2012, State Street manages more than $337bn in SPDR ETF assets worldwide and is one of the largest ETF providers globally.
