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Author: AllTooFoolish Two stars, 250 posts Old School Fool CAPS All Star Add to my Favorite Fools Ignore this person (you won't see their posts anymore) Number: of 5985  
Subject: Re: Dow30 BI Performance Tracker thru May 31, 20 Date: 6/6/2014 5:19 PM
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dowbuys asked "Have you found a way to automate your BI calculations for the S&P 500? Unfortunately, I'm still making my calculations on Excel the old fashioned way."

I have not found a fully automated way to perform my updates either. However, I have made great progress using macros and other creative means to perform most tasks fairly quickly. I have the process down to about one hour of work each week to update and double check my work. There are a few limitations that prohibit a full automation. More specifically, the limitations I have observed are,

1. Stock splits are a nightmare. Sometimes the prices are adjusted, but not company financials. Sometimes it is the other way around. I have had this processed reduced down to a macro. So there is a simple way to account for this. Delisting are the same. Once identified a macro does the trick of removing it from my worksheets.
2. new company additions price history needs to be added manually. There is just no way around it.
3. I have found no way to download historical annual hi/low prices either. As a result, new listings need to be added manually as mentioned in #2. However, this also means with the passing of a new year, all the latest annual hi/low prices need to be appended manually as well.
4. The long-term VL price targets can not be downloaded either. As a result, each week any changes for these two variables in the latest reporting series need to be manually updated.

At this point in time I have a massive spreadsheet (Excel 2013, 10.5MB) that takes me about one hour to update and double check my work each week. Honestly I am very proud of the work I have done to automate as much of the process as possible to balance speed and accuracy. I have paid a programmer to help me automate a few tasks from time to time, such as stock splits and delistings. I also have my process fully documented to keep track of each step to help reduce errors. While it still takes me about an hour each week to complete the update, I am performing the update for the complete 1700 listings, not just the S&P500. So I would say one hour for this amount of updating is pretty good.

There are a good number of reasons full automation can not be done at this time. If VL refines their download capabilities in the future the process may get much easier, but likely still not fully complete.

- AllTooFoolish
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