Jim (and Marco/P123 staff)
I have made two ranking systems public for you to see:
(1) IND: Blended Ratio Revs
(2) IND: Total Revisions Median
(1) is a blended version of the new industry factors CurrYRevRatio4W and NextYRevRatio4W. This represents the new functionality.
(2) uses FMedian(“TotRevisions4W”,#Industry) close but not exactly the same.
Both use the S&P 500 universe. The performance graphs are shown below (attached).
Both ranking systems consist of industry factors only. There are no factors unique to an individual stock. Thus only the industries are being ranked and whether a stock has an NA should be irrelevant (I believe).
Based on the performance graphs I have to come to the conclusion that there is a problem with the way the new industry function is being calculated. And in fact, every time I try to look into how ranks are processed I feel the need to visit a shrink immediately afterwards 
Steve
