Sibos 2026: Citi's Bis Chatterjee on stablecoin partnerships and interoperability

Quick Summary

The transition from traditional finance to a digital asset ecosystem requires a delicate balance between internal development and external collaboration. Bis Chatterjee of Citi explains at Sibos 2026 how the bank evaluates its build versus buy strategy and why its partnership with Coinbase represents a significant step in making stablecoin payments accessible to wholesale clients.

How does Citi decide between building, buying, or partnering for new products?

The decision process at Citi involves a constant assessment of criticality, cost, and speed to market. Bis Chatterjee notes that the bank typically looks toward a partnership model when exploring new markets or when there is a need for rapid entry into a specific area. This approach is also favoured when a use case is in its nascent form and has a smaller volume of initial customer demand. However, for scalable, large volume use cases with significant client impact, the bank prefers to build solutions internally to ensure full control over the infrastructure.

What is the significance of the partnership with Coinbase?

A primary example of Citi's partnership strategy is its collaboration with Coinbase, which was highlighted by the bank's leadership at Sibos 2026. This partnership focuses on:

• Creating a mechanism for clients to access payments using stablecoins.
• Providing a way for clients running online platforms to accept stablecoins and convert them into cash.
• Ensuring these funds can be moved seamlessly into traditional bank accounts.

Bis Chatterjee explains that working with an external provider allowed Citi to leverage specific market expertise that was more advanced than their internal capabilities at the time.

Who maintains control of the client relationship in these partnerships?

Regardless of whether blockchain or traditional technology is used, Bis Chatterjee emphasises that the client relationship remains firmly with Citi. The bank retains full responsibility for KYC (Know Your Customer) records, risk management, and controls. He observes that most clients are technology agnostic: they care primarily that the service works, is priced efficiently, and is secure. The underlying technology components are often invisible to the end user, as long as the bank manages the associated risks effectively.

What does interoperability mean for the future of wholesale banking?

Interoperability is a central theme for Citi, but Bis Chatterjee argues it must be addressed across three distinct layers to work on a wholesale basis: data, technology networks, and liquidity. While many fintech solutions solve for one of these areas, a truly global system requires all three to function together. Citi has already established interoperability between its own blockchain and non-blockchain systems, but the next phase involves working with external partners such as SWIFT, clearinghouses, and central banks to ensure the wider ecosystem is connected.

FF NEWS TAKE:

Citi is demonstrating a pragmatic and mature approach to the digital asset space by focusing on utility over hype. By partnering with specialist firms like Coinbase, the bank can offer cutting edge services like stablecoin settlement without compromising the rigorous compliance and risk frameworks that wholesale clients expect. The focus on three dimensional interoperability suggests that the future of finance will not be a battle between old and new systems, but rather a unified environment where the underlying technology is secondary to the efficiency of the service provided.