I track my stocks with iFinance. However, one of them shows a value of 0. Why is that?
iFinance allows you to track your stock values because it reads the downloadable information from finance.yahoo.com. You can do the same by opening a stock's detail page and scrolling all the way down. There, simply click the Download Data link. We can't say why but some stock values are displayed on the website but the data offered as download turns up empty. Please contact the Yahoo support and let them know that you'd really like to import that downloadable data into your financing software and that that data is empty. Maybe it's merely a malfunction on their system and can be fixed easily.
More information about iFinance is available in the User Guide. You can find it in iFinance's Help Menu or for download here.