The NYSE Composite Index is designed to measure the performance of all common stocks listed on the NYSE, including ADRs, REITs and tracking stocks. Under its methodology, all closed-end funds, ETFs, limited partnerships and derivatives are excluded from the index.  It is a measure of the changes in aggregate market value of all NYSE-listed common stocks, adjusted to eliminate the effects of capitalization changes, new listings and delistings. The index is weighted using free-float market capitalization and calculated on both price and total return basis.