Block Inc. Joins S&P 500, Stock Surges Post-Announcement

Block Inc. announced its addition to the S&P 500, effective late July 2025. This inclusion reflects the company’s successful trajectory since its inception by Jack Dorsey, who continues enhancing Block’s crypto-focused initiatives.

Founded by Jack Dorsey, Block Inc. focuses on integrating Bitcoin with mainstream finance. The company’s products, like Square and Cash App, showcase its ongoing innovation in financial technology.

The S&P 500 inclusion provoked a nearly 10% surge in Block’s stock during after-hours trading, signaling a strong positive reaction from investors anticipating increased institutional interest.

Block’s S&P 500 entry may enhance institutional allocations, notably from index funds. This development underpins Block’s financial strategies and confirms its pivotal role in the intersection of crypto and traditional markets.

“Block has been added to the S&P 500, effective July 23, 2025. It’s a milestone that reflects the strength of our business and the work of thousands of people building tools to increase access to the economy, across our brands… We’re just getting started.” — Block Inc. Statement

Block’s inclusion echoes Coinbase’s NASDAQ 100 entry, which spurred institutional interest and capital inflows. Both events reflect the growing acceptance of crypto-focused companies in mainstream finance.

Analysts view Block’s move to the S&P 500 as bolstering Bitcoin’s market legitimacy. With historical evidence pointing to increased interest, the inclusion emphasizes crypto’s integration into traditional financial indices.