Senate Democrats have announced the launch of an investigation into JPMorgan Chase over its connections to convicted sex offender Jeffrey Epstein. The news triggered a sharp sell-off in the bank's equity, with shares falling 3% during today's trading session. The probe marks a significant escalation in scrutiny of major financial institutions' historical relationships with Epstein. The immediate market reaction reflects heightened investor concern over potential regulatory and reputational risks facing the largest U.S. bank by assets.