S & P 500 Constituents

Discussion in 'Trading' started by strw23, Mar 11, 2007.

  1. strw23


    Hello All
    I was wondering if anybody knows were I can find a list of companies that have previously made up the S & P 500. I know if I go to Standards and Poors web page I can find the current list but I would like to know who was in it in the past and for how long for accurate backtesting of US systems. Hopping someone can help.