Banco Santander is trading 4.2% down at $11.56 after hours, with no verified company-specific announcement or late-breaking catalyst explaining the decline.
- Shares closed at $12.07 on November 4, then reversed part of the regular-session gain after rising 6.44%.
- During the regular session, European banks rallied amid reduced U.S. midterm uncertainty and lower bond yields. Bloomberg reported the sector index rose as much as 4.5%, with Santander among contributors. The earlier rally does not explain the later reversal.