Here you see how to track your portfolio the right way

Stock portfolio tracker

Historical Dividends API provided by Finnworlds is a data delivery format that allows you to get instantly real-time and historical dividends data.

This is my personal depot tracker software (currently limited to comdirect). Depot data and account statements are retrieved via REST Api (Comdirect developer tools). New features will be added in near future. The tool mainly focuses on asset allocation and dividend (-growth)