
Factoring it all in
Entia non sunt multiplicanda praeter necessitatem.No more things should be presumed to exist than are absolutely necessary. (Occam’s Razor). One of the defining trends of recent years has been the rise of ETF’s /Index funds which have taken hold over the course of the period post the Financial Crisis. There have been a proliferation of “Factors”, or possibilities of Alpha generation, many of which turn out to be either useless (i.e. they never worked) or redundant (they don’t now). This study suggests that there have been 59 new Factors “discovered ” between 2010 and 2012 alone!