Are you perhaps thinking of this (equal wt. S&P) ? <A HREF="http://decisionpoint.com/ChartSpotliteFiles/030917unweighted.html" target="_new">http://decisionpoint.com/ChartSpotliteFiles/030917unweighted.html</A> A NEW AND DIFFERENT EXCHANGE TRADED FUND (ETF) On April 30, 2003 the new Rydex SP Equal Weight ETF (RSP) began trading. It is based on the S&P EWI (Equal Weighted Index), an index composed of the S&P 500 stocks but calculated in a way to give each stock an equal weighting.