Switzerland’s stock exchange SIX has partnered with Chainlink, the oracle platform, to introduce equities data from its exchanges onto blockchain networks. This initiative marks the debut of such information through Chainlink’s DataLink, a robust institutional data publishing service built on Chainlink’s secure data standards. These standards ensure reliable delivery across both public and private blockchain environments.
The collaboration makes comprehensive equities data from SIX-operated exchanges in Switzerland and Spain accessible onchain.
Collectively, these assets represent more than €2 trillion in market capitalization.
Developers and applications can now programmatically retrieve this information within standardized smart contract frameworks, reaching over 2,600 decentralized applications spread across more than 75 blockchains.
This expansion significantly broadens the scope of blockchain-based financial tools.
As the operator of key market infrastructure in Switzerland and Spain, SIX has long been at the forefront of digital asset innovation, including its pioneering digital asset central securities depository.
By integrating with Chainlink, the partnership accelerates the integration of high-quality equities data into blockchain ecosystems.
It paves the way for advanced digital asset infrastructure and opens doors to innovative applications such as tokenized equity indices, structured financial products, regulated decentralized finance (DeFi) solutions, prediction markets, and novel trading mechanisms—all powered by precise, real-time equity market insights.
Matthew Nurse, Head of Market Data at SIX, highlighted the strategic importance of the move.
He noted that the integration with Chainlink’s enterprise-grade publishing service allows SIX to supply timely, premium market data while onboarding major Swiss and Spanish blue-chip equities directly onto the blockchain via DataLink.
This setup equips digital asset platforms with dependable data delivered through established, secure systems, thereby building greater confidence and driving innovation throughout international financial networks.
Fernando Vázquez, President of Capital Markets at Chainlink Labs, emphasized the platform’s role in enabling data providers.
According to Vázquez, Chainlink DataLink offers trusted organizations like SIX a protected and expandable method to monetize market data onchain.
It maintains essential safeguards for data integrity, user entitlements, and controlled distribution—critical requirements for regulated financial entities.
This approach allows data suppliers and institutions to seamlessly link high-caliber information to both public and private blockchains using Chainlink’s established infrastructure.
The announcement underscores SIX’s commitment to serving Swiss and Spanish financial hubs alongside a global clientele.
The organization manages stock exchanges and delivers services in post-trade processing, financial information, and payments.
Owned by approximately 120 financial institutions, SIX employs over 4,300 staff across 19 countries and reported operating income of CHF 1.7 billion with EBITDA of CHF 460 million in 2025.
Chainlink, recognized as the standard for oracles in capital markets, dominates DeFi by supplying vital data, interoperability, compliance, and privacy protocols.
It supports blockchain applications in areas like tokenized assets, lending, payments, and stablecoins.
Having facilitated considerable transaction value over the years, Chainlink secures the bulk of DeFi activity and is adopted by players including Swift, Euroclear, Mastercard, Fidelity International, UBS, S&P Dow Jones Indices, FTSE Russell, WisdomTree, ANZ, and protocols such as Aave and Lido.