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URL:  https://boards.fool.com/mfi-has-the-problem-that-nobody-who-has-backtested-31613101.aspx

Subject:  Re: Throwing in the towel Date:  2/5/2015  9:04 AM
Author:  Rayvt Number:  2369 of 2413

MFI has the problem that nobody who has backtested it can show return anywhere near what Greenblatt claims. So far Greenblatt has consistently refused to address that, nor to show his work.

The only conclusion one can draw from this is either he is lying about MFI or that there are other steps in the formula that he is not disclosing.
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