You know me. I like simple, high probability trading set ups with minimal drawdown and performance charts characterized by a lot more winning than losing trades.
One of my favorite systems with these parameters is the Double 3s, originally posted as the Double 7s. There are a number of these posts in the archives and you can get a flavor of some typical results by checking them out .
With a 30 month lookback the optimized results for WMT are 6,6,9,6.
Different stocks and ETFs have different inherent cycles and beta, so some adjustment to the inputs is required in order to establish an attractive equity curve.
And, a funny thing has happened to many stocks and ETFs tested using this system . . . the equity curve has rolled over or gone negative as of March 09.
That's clearly not the case with WMT and although the last couple trades have been losers, the odds are now favoring a resurgence of the equity curve.
As with the PDQ models, the use of a reversing equity curve slope as a stop should be considered for any of the double 3 study candidates.