iShares S&P 500 Index Fund Shares 

The primary goal of this fund is to replicate the overall return performance of the broad market of publicly traded common stocks, as measured by the Standard & Poor's 500® Index. Operating as a feeder fund, it channels all its capital into the MIP Master Portfolio, which shares identical investment objectives and strategies. At least 90% of its assets are directly invested in the constituent securities of the S&P 500 Index. Furthermore, the fund strives to mirror the individual stock weightings found within the S&P 500, meaning its allocation to each stock roughly corresponds to that stock's representation in the index.