About a-team Marketing Services
The knowledge platform for the financial technology industry

A-Team Insight Blogs

Wholesale Market Brokers’ Association Publishes Repurchase Overnight Index Average (“Ronia”)

Subscribe to our newsletter

Wholesale Market Brokers’ Association (“WMBA”) today announces that it is publishing the Repurchase Overnight Index Average (“RONIA”), a new UK secured money market benchmark.

The new index tracks actual market secured overnight funding rates in sterling and is compiled as a weighted average of transactions brokered in London, supplied by members of the WMBA between 12:00 and 16:15 the following day.

RONIA is based on Secured Overnight Swaps which are repurchase (repo) agreements in which securities are sold provided that they will be repurchased on the following day.  Financial institutions use overnight repos as a means of raising short-term money for financing inventories through either a short term loan funded by an overnight deposit or an overnight loan funded by a short-term deposit.

Following the financial crisis, counterparty risk provisioning and collateralisation of portfolios has become increasingly important to financial decision-making, the corollary of which has been a huge growth in secured lending and borrowing markets in the UK.

Commenting on the launch, Alex McDonald, CEO, Wholesale Market Brokers’ Association said, “The launch of RONIA is a response to the need for an official fixing benchmark to enable market participants to hedge exposures to Secured Overnight Swaps / secured lending.”

RONIA eligible transactions are Delivery by Value (DBV) which is a mechanism whereby a CREST member who has borrowed money against overnight gilt collateral may have gilts on its account to the required value delivered automatically by the system to the CREST account of the money lender.

The index is a weighted average overnight deposit rate for each business day. Each rate in the average is weighted by the principal amount of deposits which were taken on that day. The Index is published at 17:00 hours every day.

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: The Data Office at a Crossroads — AI Governance, Organisational Design, and the Evolving Mandate of the CDO

Who owns AI governance in a capital markets firm – and is the Data Office structured to bear that weight? These questions sit at the heart of A-Team Research’s latest findings, presented here for the first time: the combined results of two landmark surveys examining the role of the Data Office in AI governance and...

BLOG

Inaugural AI in Data Management Summit NYC Sets New Benchmark in AI Discussion

A-Team Group’s inaugural AI in Data Management Summit NYC set a new benchmark in the global discussion around artificial intelligence. Leading figures from the worlds of finance and technology gathered in New York to share best practice guidance and observation, real-world case studies and forecasts for the exciting – and challenging – year ahead. The...

EVENT

TradingTech Summit London

Now in its 15th year the TradingTech Summit London brings together the European trading technology capital markets industry and examines the latest changes and innovations in trading technology and explores how technology is being deployed to create an edge in sell side and buy side capital markets financial institutions.

GUIDE

AI in Capital Markets Handbook 2026

AI adoption in capital markets has moved into a more disciplined phase. The priority is now controlled deployment: where AI can be used safely, where it can deliver measurable value, and how outputs can be governed, monitored and evidenced. The 2026 edition of the AI in Capital Markets Handbook examines how AI is being applied...