Spreadsheet User Spreadsheet and database are very useful in evaluations. Only issues are: - 1-2 week delay between company's quarterly releases and financial update availability. - Numerous inconsistencies in financial data; sum of quarters not equal to full year for some categories; 10-Q and 10-K data not always put in "buckets" in a consistent manner. Assume these shortcomings are from your data provider.

Helps to narrow down investing ideas Helps to narrow down investing ideas, but sometimes displays companies that are not up to date with financial reports, therefore it could be misleading. As with any tool, if you don't know how to use it you can get hurt. Use it wisely.

Excellent resource for investors who… Excellent resource for investors who want to do their own homework. I have been using valuation spreadsheets created by Jae Jun as early as 2013 and experienced the whole process of moving to online valuation service. There are many valuation resources on the web, but Old School Value is the easiest to use for analyzing stock price sensitivity as part of my decision making. I also appreciate the lists of top 10 stocks by different metrics. Those give me ideas for further research.

Saved time and gained new insights I invest with my own IRA and always had to spend a lot of time researching. M1 may be a little out of my price range but with all saved time I believe it makes it more than worth it. The service has also helped improve my knowledge on investing instead of relying on bad ideas I've always relied on. The use of OSV has been very valuable and I'm a sastified customer.

Not perfect, but helpful Unless you are prepared to wait for years, all stocks making the A list are not winners. However, it is a good tool to evaluate a stock before making a purchase.