US Stock Market Premarket Top Gainers Today (Dec. 12, 2025): Lululemon Surges, Cannabis Stocks Rally, Mitek and Quanex Jump
SEO summary: Here are the biggest US stock market premarket gainers today and the news driving them, including Lululemon’s earnings and CEO transition, a cannabis-stock surge tied to marijuana rescheduling headlines, and earnings-driven jumps in Mitek and Quanex. Nasdaq+4StockAnalysis+4Reuters+4