ETF Rewind [1] subscribers have long had the ability to derive customized relative strength models using statistics available in our nightly newsletter. By popular request, the nightly Excel spreadsheet now includes a customizable Relative Strength Rotation [2] back-testing engine.  While it uses as many as ten tickers at a time, motivated traders might consider one set of tickers to represent major asset classes, then additional lists to effectively drill down on the active classes with more concentrated scans.  Without a doubt, this addition makes ETFR one of the most powerful and complete interactive newsletters/tools available to the individual trader.  Other features include:

• Nightly Market Recap & Next-Day Outlook
• Statistical Summary of Nearly 200 ETFs across 12 Asset Classes
• Pairs Trading & Scanning Modules
• Relative Strength Rotational Model
• Advanced Custom Portfolio Metrics & Hedging Analysis

Quite a Swiss Army Knife!  Three-day trials are still available here [3].  Advanced functionality expires in 30-days, but the files are otherwise yours to keep.  Why not give it a try?

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Read more: http://marketrewind.blogspot.com/2010/02/etf-rewind-announcing-customizable.html#ixzz0ez5Lxd7W [5]