Could Block S&P500 Inclusion be Crypto’s Wall Street Moment?

The moment Jack Dorsey's friend Jim McKelvey couldn’t sell a piece of his glasswork because he lacked a card reader in 2009 has sparked one of fintech’s most transformative journeys. That frustration spawned Square Inc – which has since evolved into Block Inc – securing a coveted position in the S&P 500 index as of 23 July 2025.

Block’s shares surged nearly 10% in after-hours trading following the announcement, capping a 16-year journey from payment processing startup to US$44.8bn financial ecosystem. The company that began with a white square card reader plugging into smartphone headphone jacks now operates merchant services, consumer banking, cryptocurrency infrastructure and even music streaming platforms.

Block replaced Chevron subsidiary Hess Corp in the index after meeting criteria including positive earnings across four consecutive quarters and a minimum market capitalisation threshold of US$14.5bn. But how did a company that started with a simple payment solution evolve into a financial empire that institutional investors now cannot ignore?

Square and Cash App: Behind Block’s merchant-consumer strategy

Block’s merchant-focused Square platform has grown far beyond its roots in payment processing into a comprehensive operating system for small and medium businesses. Now, the platform combines point-of-sale hardware with inventory management, customer relationship tools, online store creation through Square Online and business financing via Square Loans, which provides advances up to US$250,000.

This integrated approach addresses the fragmented software landscape that historically forced small businesses to cobble together solutions from multiple providers. Square processes payments for millions of merchants whilst providing the backend infrastructure for their operations, from staff scheduling to tax reporting.

Cash App launched in 2013 as a peer-to-peer payment service competing with PayPal’s Venmo. The platform has since expanded into direct deposit for paychecks, customised debit cards, commission-free stock and ETF trading, Bitcoin buying and selling and tax filing services acquired from Credit Karma. Now, its appeal to younger and lower-income demographics has created a user base of tens of millions.

Block’s US$14bn acquisition of Australian buy-now-pay-later provider Afterpay in January 2022 added another piece to the puzzle. The deal has completed what Block has termed a “flywheel” effect between merchant and consumer sides.

Afterpay integration allows Square merchants to offer instalment payments, potentially increasing conversion rates and average order values, while Cash App users gain access to BNPL functionality within their existing financial app.

How Proto and Bitkey highlight Block’s Bitcoin infrastructure commitment

With co-founder Jack Dorsey viewing Bitcoin as “the native currency of the internet and a critical tool for global economic empowerment,” according to the company’s strategic communications, it’s unsurprising that Block’s most distinctive element remains its commitment to cryptocurrency.

Proto, the company’s mining hardware initiative, aims to address concentration risks in Bitcoin mining through development of 3-nanometer ASIC chips and partnerships with mining operators including Core Scientific. Bitkey, meanwhile, addresses cryptocurrency custody challenges through a consumer-friendly wallet system with three parts: a mobile app to make transactions easily on the phone, a hardware device to protect savings securely offline, and a set of recovery tools in case customers lose their phone, hardware or both. This, the company says, provides enhanced security without requiring users to manage complex seed phrases that have historically deterred mainstream adoption.

These initiatives constitute what Block describes as building “down the stack”: creating the infrastructure for a Bitcoin-centric financial system rather than building applications on top of existing networks.

Regulatory scrutiny mounts alongside financial services expansion

Block’s expansion into mainstream financial services has brought regulatory challenges. In January 2025, the company agreed to a US$255m settlement with the Consumer Financial Protection Bureau and 48 state regulators over Cash App compliance failures. Regulators found Block employed “weak security protocols” and conducted “woefully incomplete” investigations into unauthorised transactions.

A separate US$80m fine in January 2025 addressed Bank Secrecy Act violations, with regulators citing inadequate customer due diligence and suspicious activity monitoring. The settlements require ongoing compliance reviews and corrective measures that will increase operational costs.

Competition also continues to intensify across Block’s business lines. Square competes with Shopify in e-commerce, Stripe in payments and Intuit in business software. Cash App faces PayPal’s Venmo in peer-to-peer payments, Chime in digital banking and Robinhood in retail investing, while Afterpay battles Affirm and Klarna in buy-now-pay-later services.

The company has also faced operational pressures, laying off 931 staff in March 2025 – roughly 8% of its workforce – citing strategic shifts and performance management rather than financial constraints.

Despite these challenges, for Block the future is bright: “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 including Square, Cash App, Afterpay, TIDAL, Proto and Bitkey,” the company said. “Thanks to our customers, teams, and shareholders who’ve been with us on the journey. We’re just getting started.”