Western Digital (WDC) Stock After Hours on Dec. 22, 2025: Nasdaq-100 Debut, Today’s Headlines, Analyst Forecasts, and What to Watch Before Tuesday’s Open
Western Digital closed down 2.39% at $176.76 Monday, its first session as a Nasdaq-100 member. Shares traded near $176.58 after hours. The index addition took effect ahead of the market open, triggering rebalancing flows and heightened trading volume. WDC remains just below its 52-week high of $188.77.