Shares of Block, Inc. surged nearly 20% in late February 2026 trading following a transformative fourth-quarter earnings report. CEO Jack Dorsey announced a massive structural reset, reducing the company's workforce by 40%. The headcount will drop from over 10,000 to approximately 6,000 employees as the firm pivots toward an AI-native operational model. Markets responded with high conviction to this efficiency-driven strategy. Block reported a Q4 gross profit of $2.87 billion, marking a 24% year-over-year increase. Monthly active users on Cash App reached 59 million, while primary banking actives grew 22% to 9.3 million. This performance pushed the company's 2025 annual gross profit to $10.36 billion, with December alone crossing the $1 billion milestone for the first time. The pivot to artificial intelligence is central to Block's new growth thesis. Management cited that intelligence tools are now advanced enough to allow significantly smaller teams to outpace larger, traditional workforces. Internal productivity gains from AI integration are expected to accelerate product development cycles and expand operating margins, which reached 20% in the final quarter of 2025. For the 2026 fiscal year, Block has issued aggressive guidance. The company expects gross profit to reach approximately $12.2 billion, representing 18% growth. Adjusted operating income is projected at $3.2 billion, which would signify a 54% increase over the previous year. This outlook underscores a shift in investor sentiment, where lean, AI-driven profitability is now prioritized over total workforce scale. Despite the positive market reaction, the broader fintech sector remains in a state of flux. While Block's shares rallied on the news, the stock had faced a 22% decline earlier in the year due to persistent economic headwinds. The current rally reflects a "Rule of 40" reckoning, as the company balances growth with disciplined cost management. The structural changes at Block serve as a bellwether for the industry. Other major fintech players are increasingly adopting "agentic AI" and automated compliance systems to reduce overhead. As the sector moves through 2026, the focus has shifted entirely to high-margin lending, primary banking engagement, and AI-powered operational leverage. [Block Q4 2025 earnings review](https://www.youtube.com/watch?v=eml2imnhwZg) This video provides a professional breakdown of Jack Dorsey's decision to cut half of Block's staff to focus on AI productivity. http://googleusercontent.com/youtube_content/0