Google Finance is removing the Portfolio feature
"Portfolios deprecation information
In an ongoing effort to make Google Finance more accessible and user-friendly for a wider audience, we’re making a few major changes to the service in November 2017.
As part of this updated experience, you’ll still be able to:
Follow the stocks you’re interested in
Receive the latest industry news and market trends
However, as part of this updated experience, the Portfolios feature will no longer be available. To keep a copy for your records, download your portfolio now.
To give you time to download and consider alternative services, this change won't happen until mid-November 2017."