In an era where milliseconds can shape market outcomes, the ability to access, interpret and act on reliable information is crucial.

Investors, traders and analysts depend on real-time insights to make informed decisions, manage risk and identify emerging opportunities; therefore, access to accurate, up-to-date data and analytics is the lifeblood of a modern stock market. JSE Marketplace exemplifies how technology is transforming this vital function. As a cloud-based platform, it provides users with seamless, flexible access to market data and analytics, which not only enhances transparency and efficiency but also supports a diverse global client base operating across different markets and technical systems.

‘Marketplace represents a strategic milestone in the JSE’s digital transformation journey,’ says Barbara Arnold, the JSE’s Head of Market Data.

‘As part of a broader shift to cloud-based infrastructure, the JSE is actively modernising its technology stack. This includes a major migration initiative with Amazon Web Services, beginning with the Broker Dealer Accounting system, which currently operates on a legacy mainframe. Marketplace itself is powered by Microsoft Azure, reinforcing the JSE’s commitment to scalable, secure and future-ready solutions.’

She says new data products and services have recently been introduced on Marketplace. ‘Currently, Marketplace hosts 18 live products, ranging from end-of-day (EOD) datasets to a real-time Stock Exchange News feed. These include equity EOD offerings and derived products such as company financials and ETF payments. A standout innovation launching in the last quarter of 2025 is the early access feature. This sandbox environment allows clients to explore prototype products, experiment with functionality and provide feedback to shape future releases. Communication on the early access feature will begin in early November via a webinar.’

She says the early access feature is open to clients currently using the JSE’s FTP-delivered products, as well as those who express interest in participating. Testers will be onboarded in manageable batches to ensure meaningful engagement and timely feedback. As the programme evolves, so too will the invitation and feedback mechanisms.

Arnold says these new additions enhance the overall value proposition of Marketplace for clients. ‘Marketplace simplifies data consumption by offering curated formats that deliver more value with fewer products. Unlike our traditional FTP fixed-width products, the new environment supports a number of formats and delivery options, including for human readable and direct system ingestion. This development streamlines access for a wide range of users and reduces technical overhead.’

The JSE has emphasised client feedback in the development of the new data offerings, says Arnold. ‘Client input has been instrumental from the outset. Feedback on existing products guided the initial Marketplace offerings and directly inspired the early access initiative. This co-creation model ensures that new products are not only technically robust but also aligned with real-world client needs.’ She says the JSE has invested in building a scalable product development framework or product factory, and clients can expect a steady stream of new releases, delivered more rapidly and efficiently. In 2026, for example, the focus will expand to include streaming data and advanced analytics, further enhancing the platform’s capabilities.

‘Over the next 12 months the JSE’s focus will be on operationalising the systems and processes that underpin Marketplace, enabling the delivery of client-centric products at scale and speed,’ says Arnold.

‘The JSE is also exploring opportunities beyond its core data offerings, leveraging its strengths to introduce new datasets that empower better decision-making across the financial ecosystem.’

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