Lance Stonecypher's chaper from "Being Right or Making Money":
"We call this ranking system are Techno Ranks. It's really a very simple formula that applies rates of change over a 26 to 52 week time frame to each stock in the S&P 500 and then ranks those stocks in descending order based on the results of the formula. The component rates of change used in this formula have been well documented by independent academic research.
[A table illustrates the performance of this system over a 27 year period. In practice, NDR combines sector momentum with the relative momentum of stocks. They have a Traders Buy List, basically a ranking system that selects the top 15 industry groups (out of 100)and the top 15% of stocks out of those groups (out of a universe of 2000 stocks)]