Is there a way to update a portfolio by importing?

Yes, just right-click the portfolio you wish to update in the Navigation panel and select ‘Import Updates.’ Then, navigate to the file you wish to import. If you import a CSV file from your brokerage it will add another date record to the portfolio without overwriting the original.

Please note that importing a portfolio file that was exported previously from Stock Rover will overwrite the existing portfolio upon import. Only Premium users can maintain a record of past trades and positions.