PctOfPerfect - Percent of Perfect

By summarizing the absolute value of close price moves from one day to the next, for all symbols in the evaluation, the perfect profit can be identified.  The net profit for all trades produced by the system, regardless of portfolio selection, is also identified.  With these two numbers in hand, the Percent of Perfect is the percentage of perfect profit that was obtained through the net profit generated by the system.  The Percent of Perfect value will not change from one Portfolio Size to the next, since the value is created without regard to portfolio selection.

Some analysts have used 5% as their cutoff.  Systems that have a Percent of Perfect value lower than 5% are considered inefficient as they do not take advantage of a high enough percentage of the total price movement.