BNP Paribas is trading at €91.18, up 4.07%, with its buyback and recent earnings as context; neither has been directly linked to the November 4 rise. - The €1.3 billion buyback began November 2 after ECB approval; shares bought back will be cancelled. - Third-quarter net income rose 13.5%. The latest prior close was €87.61 on November 3, up 0.65%. - No reliable volume information or specific November 4 announcement explaining the full move was located.