The Oracle stock page shows comparable stocks, but one of them is SUNW, which used to be Sun Microsystems, but is now Sunworks. Delete it
Replace it with some other stock
Regnad Kcin commented
SUNW shows up in the "People Also Watch" box. That doesn't mean Yahoo thinks it's related, it probably means there are lots of user portfolios out there that probably haven't been updated since the 90s.