Blockchain oracle provider Chainlink has released “Data Streams” that deliver real-time, low-latency pricing for major U.S. equities and exchange-traded funds directly on-chain. The service, now live across 37 blockchain networks, initially covers widely traded instruments such as SPY, QQQ, Nvidia, Apple and Microsoft shares. Decentralised-finance protocols GMX and Kamino are the first to integrate the feeds, which include market-hours enforcement, staleness detection and circuit-breaker readiness designed to mimic safeguards used on traditional exchanges. Johann Eid, Chainlink Labs’ chief business officer, said the launch ‘closes a critical gap between traditional finance and blockchain infrastructure’. Chainlink positions the product as a building block for tokenised real-world asset markets, estimated at about US$275 billion today and projected to exceed US$30 trillion by 2030. By bringing equities data on-chain, the company aims to enable applications ranging from perpetual futures and synthetic ETFs to lending markets that accept tokenised stocks as collateral.