IOSG Ventures Backs Fintech Infrastructure Startup Fun

On October 26th, venture capital firm IOSG Ventures announced a strategic investment in fintech company Fun, though the specific amount remains undisclosed. Founded in 2022, Fun is focused on rebuilding the foundational architecture for global capital movement.

The Founder and Billion-Dollar Scale

Fun was founded by Alex Fine, whose background is notable: he released his first application at age 16, studied at Stanford University, and previously led a quantitative crypto fund. Under his direction, Fun has developed an embedded financial solution that integrates fiat rails, multiple currencies, digital assets, and blockchain networks.

Currently, Fun processes an annualized volume of $100 billion, providing underlying payment infrastructure for platforms including prediction market Polymarket and DeFi protocols like Lighter and Aave.

Four Core Capabilities and Global Reach

Fun's technology stack delivers four key functions:

  • On-Ramp & Off-Ramp: Bridging traditional finance and crypto ecosystems
  • Routing Orchestration: Intelligent optimization of fund flow paths
  • Checkout System: Support for 50+ payment methods across 150+ countries

The system also includes advanced features like fund splitting and escrow services, offering flexible capital management solutions for commercial applications.

Market Trends and Infrastructure Value

IOSG cited industry data in its announcement: the combined trading volume of prediction market platforms Kalshi and Polymarket grew from under $5 billion in September 2025 to approximately $45 billion by June 2026. Simultaneously, the global stablecoin supply has surpassed $300 billion.

These figures highlight the accelerating convergence of digital assets and traditional finance. Companies like Fun, providing embedded financial infrastructure, serve as critical foundational components supporting this integration. Their technology not only serves crypto-native applications but also offers standardized solutions for traditional businesses to access digital asset ecosystems.