I have been using colaman3's spreadsheet to calculate yield for buy and hold and this for active trading. Would you consider doing a page that gives the yield?
Thank you for pointing out that sheet to me. It's a very nice one indeed. I don't have plans to make a similar yield comparison page here. I have been toying with an idea about doing a "portfolio" kind of page though. It would be completely optional - by inputting the API key, the app would be able to pull your currently held shares and display it in a useful way.
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Thank you for the comments. I made a "performance" update couple days ago (tornsy now updates stock data "faster" - in the 5th second of every minute). I'll look into fixing the "blacking out" issue. If anyone else is experiencing this, let me know :)