Rubico is trading 11.88% lower at $1.78 amid a sharp broader-market selloff. - Reuters reported U.S. stocks fell as investors reassessed AI and data-center investment risks after the midterm elections. - Rubico closed at $2.02 on November 4 after volatile sessions; no confirmed company-specific catalyst has been identified for November 5, 2026. - Reports of the completed $7.5 million offering do not confirm a new announcement today or establish that it caused the decline.