Nice idea Anony, and the Sarpe index of 1.18 is truly remarcable!
I'd like to know how did you proceed to identify the basket of securities that result in a stationary group price... did you use some specific algorithm? or just by try and error ?
Thanks to both of you for the answers... the documents form Simon are really challenging... for the moment (next 10-20 years) I think I'll go with the approach from Anony...
Thanks again.
This is kinda interesting:
http://www.bespokeinvest.com/thinkbig/2014/4/28/2014-shifts-in-sp-500-sector-weightings.html
Around 2000, it appears that money shifted toward technology and telecom, at the expense of other sectors. And then we all know what happened... Perhaps the same kind of mean reversion happens, except on a shorter time scale?