Circle Internet Group (NYSE: CRCL) launched the public testnet for Arc, a Layer-1 blockchain designed to integrate programmable money with real-world economic activity, on October 28, 2025. The testnet has attracted participation from over 100 institutions across global finance and technology sectors, including BlackRock, Visa, and Amazon Web Services. The network offers predictable dollar-based fees, sub-second transaction finality, and direct integration with Circle's platform.

Strategy purchased 390 BTC between October 20 and October 26 for $43.4 million at an average price of $111,117 per Bitcoin, according to a filing released October 27. The acquisition brings the business intelligence firm's total holdings to 640,808 BTC, purchased for $47.44 billion at an average cost of $74,032 per coin. The purchase was funded through proceeds from the company's At-The-Market equity programs, which raised $43.4 million during the same period.