Mastercard stock tumbles below $500 on AI-disruption scare — what to watch next
NEW YORK, Feb 24, 2026, 05:12 EST — Premarket Mastercard Incorporated stock barely moved in early premarket action Tuesday. Shares had wrapped up the previous session down roughly 5.8% at $496.03, breaking through the $500 level and hitting an intraday low close to $490.