Well, in this case it did crash... lol.
notouch: you should take into acct that sometimes some concepts do not need a cientific backtesting... the core concept is there.... by no means one index will represent the entire institutional holdings, but there is an old saying in my country that says "para muestra basta un boton"... one example is enogh to know whats inside the entire box... that means that that index could be representing a lot more... example the dow index is build with just 30 stocks... but its says a lot and it speeks for the entire nyse... openes of mind can be very helpfull on the interpretation of this indexes... cheers Walter.