Block (originally named Square) was founded in 2009 by Jack Dorsey (the billionaire co-founder of Twitter) and Jim McKelvey. The foundational premise was born from major frustration: McKelvey, an artisan glassblower, lost a significant sale because he could not process an American Express card. The bureaucratic, legacy banking industry ignored "micro-merchants" because setting up a complex, expensive credit card terminal for a tiny coffee shop was unprofitable. Dorsey and McKelvey engineered a formidable, elegant technological breakthrough: a tiny, white, square-shaped plastic dongle that plugged directly into the headphone jack of an iPhone, instantly transforming the significant, ubiquitous smartphone into a secure credit card reader.
The Square Merchant Ecosystem
Square's disruptive strategy was simplicity. They offered the, ignored market of small businesses a flat, transparent fee (2.75%) per swipe, eliminating the complex, hidden fees charged by traditional legacy banks. The white dongle was a large, viral marketing success. However, Square quickly realized that simply processing payments was a commoditized, low-margin business. To build a competitive moat, Square expanded into lucrative SaaS (Software as a Service). They offered small merchants extensive payroll software, inventory management, and integrated business loans (Square Capital), locking the merchant into a sticky, all-encompassing digital ecosystem.
The Explosive Rise of Cash App
While the "Square" merchant business was successful, the large, astronomical valuation of the company was driven entirely by its second division: Cash App. Launched in 2013 as a simple peer-to-peer money transfer app to compete directly with PayPal's Venmo, Cash App targeted a different demographic. While Venmo was popular with affluent college students splitting dinner bills, Cash App targeted the extensive, lucrative demographic of the "underbanked" (lower-income Americans ignored by traditional banks). By offering a free debit card (the Cash Card) and allowing users to receive their paychecks directly into the app two days early, Cash App essentially became a vast, unregulated digital bank.
The Afterpay Acquisition (BNPL)
To essentially "close the loop" between the millions of consumers using Cash App and the millions of merchants using Square, Block executed a, aggressive strategic maneuver in 2021. At the true, euphoric peak of the tech bubble, they acquired Afterpay (a considerable Australian "Buy Now, Pay Later" company) for a staggering $29 billion in stock. The strategic logic was to bypass the prominent, lucrative Visa/Mastercard networks. If a consumer uses Cash App to buy a product from a Square merchant using Afterpay, Block essentially controls the entire transaction, retaining the extensive profit margins internally. However, Wall Street criticized the large price tag, viewing it as a substantial, dangerous overpayment.
The Jack Dorsey Bitcoin Pivot
In 2021, reflecting the ideological, personal obsession of CEO Jack Dorsey, the company officially changed its name from Square to Block. This was a public, prominent declaration of intent. Dorsey is a "Bitcoin maximalist." He directed significant amounts of corporate engineering resources toward building complex Bitcoin infrastructure (like the TBD decentralized exchange and hardware wallets). While Cash App generates vast revenue by allowing users to buy and sell Bitcoin, Wall Street analysts are skeptical of Dorsey's formidable, expensive ideological crusade, constantly demanding that the company focus its significant capital on improving the reliable profit margins of its core merchant and consumer banking businesses.
