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Jack Dorsey Investments: What the Bitcoin Maximalist and Block Founder Teaches About Conviction Investing

Brian Nichols is the co-founder of Angel Squad, a community where you’ll learn how to angel invest and get a chance to invest as little as $1k into Hustle Fund's top performing early-stage startups

Jack Dorsey is one of the few people in technology who has co-founded two companies each worth over $10 billion. Twitter, launched in 2006, reshaped global communication. Square, launched in 2009, reshaped how small businesses accept payments and access financial services. When Elon Musk acquired Twitter in 2022 for $44 billion, Dorsey received a significant windfall on his equity stake. He has since poured most of his focus into Block, the company he renamed from Square in December 2021 to reflect a broader mission around financial access and Bitcoin infrastructure. Jack Dorsey investments are concentrated, philosophically driven, and structured around a single long-term bet: that Bitcoin will become the native currency of the internet.

Block as a Living Investment Thesis

The best way to understand Dorsey's investment philosophy is to look at what Block has become. It started as a point-of-sale product for small merchants. It now operates Square for business payments, Cash App for consumer financial services, Afterpay for buy-now-pay-later, Tidal for music streaming, Bitkey for self-custody Bitcoin wallets, and Proto for Bitcoin mining hardware. As of 2024, Block serves 57 million users and 4 million sellers and processes $241 billion in payments annually.

The Bitcoin through-line is the most revealing part of the corporate strategy. Block purchased over 8,000 BTC for $170 million across 2020 and 2021. In April 2024, Block announced it had completed the development of a 3-nanometer Bitcoin mining chip and in July 2024 signed an agreement to supply Core Scientific, one of the largest Bitcoin miners in the world. The Web5 initiative, which aimed to build a decentralized internet layer on Bitcoin, was shelved in November 2024, with resources redirected toward Proto and Bitkey. Dorsey is not hedging across the crypto universe. He is concentrating specifically on Bitcoin, consistently, over many years.

The Personal Portfolio

Beyond Block, Dorsey's personal investment activity spans 38 documented investments with 5 exits according to CB Insights. His latest investment was in Peek, a travel experiences platform, in November 2025. In August 2024, he backed SimpleX Chat, a privacy-focused messaging app. In September 2024, he participated in the Mercor Series A alongside Adam D'Angelo. Earlier investments include Whoop, the fitness wearable, and Instagram before Facebook's $1 billion acquisition in 2012.

These aren't random bets, and Angel Squad members who study his portfolio find the pattern clarifying. They cluster consistently around products that give individuals more control over their data, their communications, or their financial lives. His Start Small charity pledged $5 million over five years to Brink, a nonprofit supporting Bitcoin core developers in May 2023, and donated $21 million to OpenSats, focused on Bitcoin open-source development, in May 2024. These philanthropic moves reinforce the same thesis his commercial portfolio is built on.

Elizabeth Yin, Hustle Fund GP, has discussed how investors with strong philosophical frameworks tend to make better decisions under uncertainty because they have a clear basis for saying no to deals that don't fit. Dorsey's conviction around decentralized financial infrastructure is exactly that kind of framework, and it produces a very clean filter.

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The Contrarian Logic of Going Deep

Most sophisticated investors diversify aggressively. Dorsey's approach is the opposite. His entire corporate strategy at Block is organized around Bitcoin. His philanthropic capital is directed at Bitcoin development infrastructure. His personal portfolio skews heavily toward privacy, decentralization, and financial access. This is an unusually concentrated bet for someone operating at his resource level.

The logic is transparent: if Bitcoin becomes the native currency of the internet, as Dorsey genuinely believes, then the infrastructure built around it will be among the most valuable in the world. That's not a diversification argument. It's a conviction argument, and it requires being comfortable being wrong for extended periods while the market catches up to your view.

Shiyan Koh, Hustle Fund managing partner, has talked about the difference between investors who have a thesis and investors who have a genuine view about how the world will unfold. A thesis is a framework for evaluation. A view is a belief about direction. Dorsey has a view, and he has built everything around it.

Angel Squad and the Power of Conviction Investing

Jack Dorsey investments are a case study in what happens when you build a portfolio around genuine conviction rather than diversification for its own sake. Angel Squad helps investors develop that kind of clarity about their own edge and thesis. With 2,500 members across 50 countries, the community brings together people who are serious about understanding why they're making each investment, not just chasing deal flow. Members invest alongside Hustle Fund in early-stage companies and build portfolios with real frameworks underneath them. If Dorsey's approach to conviction-first investing resonates, start at hustlefund.vc/squad.

The Takeaway

Jack Dorsey investments are coherent in a way that most portfolios aren't. From Block's product strategy to his personal angel activity to his philanthropic capital, everything points back to the same underlying belief: decentralized financial infrastructure, built on Bitcoin, will be one of the most important technological developments of the next twenty years. You don't have to share that view to learn from the discipline it represents. The lesson is that great investors develop a genuine point of view about the future and build their entire operation around it, including the deals they say no to.