why did the SP500 double top but not other indexes ?

Discussion in 'Trading' started by Wallace, May 11, 2009.

  1. in 2007 a lot of people were writing about the possible double top forming
    in the SP — i discovered lately
    at first i thought it was only the SP that double topped but also found Dax
    30 and Cac 40 also doubled topped, but not the other major world indicies
    i looked at

    if any index were to double top i'd have thought it to be those with the
    relatively small quantity of stocks - Dax, Cac, but not the 500 stocks in the
    SP index, and then there's the DJIA which also didn't double top

    so why in particular the SP500 ? did it have anything to do with the P/E ratio or
    emini trading ? why the SP500 index/stocks/companies and not the Russell 2000 ?