Greenblatt's Little Book That Beats The Market Message Board

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Strategies & Market Trends : Greenblatt's Little Book That Beats The Market

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To: Jurgis Bekepuris who wrote (192)	3/4/2013 6:22:12 AM
From: Shane M	1 Recommendation Read Replies (1) of 218

Jurgis, there are some folks I think that do more advanced stuff (maybe querying it directly via external database), but what I do is very simple because I don't have the know-how to grab data out of the AAII database (it's foxpro based). In short: - Select one of my screens. - Pull up a "view". This is simply a listing of all of the fields I need to export. Each record is for one stock ticker and then fields extend horizontally in columns. - Export that view to a file. I use a tab delimited txt file just because that's what I've setup my macros to handle in XLS. I have imported some things into an Access database before for some one-time studies, but I've found that more work to maintain and use than just figuring out what I needed and doing it all in Excel. - The AAII database thing doesn't have macros, so I can't automate it much beyond that point. - For my Buffettology stuff I export about 10 different screens which is kindof a pain to export, but once done with that I have an XLS macro process that opens takes all 10 of those exports and condenses them down into a single sorted file with those hitting the most screens bubbled to the top. I then copy/paste that chunk into XLS. - The others are simple copy/paste blocks into XLS where the previous data is replaced. - It allows calculated fields, so I can create custom calcs as needed. (I find this very useful and use several calculated fields - Greenblatt's ROC is an example) - online data updates weekly each weekend. - You can check the AAII site for the info on the data fields, but I consider it a pretty rich database of info from balance sheet, income statement and cash flow among other things like earnings estimates, insider info, industry comparisons... that sort of thing. Obviously they have to boil some things down/aggregate some to fit it all in a standardized database format, but there's a decent degree of granularity. 7 yrs of annual historicals, with quarterly data for the past 8 quarters. The videos and tutorials here give a good idea of what's available. aaii.com I haven't compared to other vendors, but there may well be other stuff out there that's similar - I just haven't shopped alternatives in a long time.

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