The stock price of Block, Inc. surged by $10.94 (a 16.10% increase from the prior day) due to a combination of positive factors. Key elements contributing to the rise include: the company's strategy to grow the Cash App user base, target families, and develop a next-generation social bank; an increase in adjusted EBITDA guidance for 2024 to at least $2.63 billion, with expectations of gross profit surpassing $8.65 billion by 2024; strong Q4 financial performance despite mixed estimates, showcasing growth amidst challenges; market appreciation for its profits, Cash App performance, and strategic vision; positive analyst evaluations and Wall Street upgrades reflecting confidence in Block's future growth prospects. Investors responded favorably to the company's strong financial outlook and performance, driving the stock price increase.