ARC Group to grow multi-family office services as S&P Dow Jones Indices deal closes
Stephen McMahon
Group Chief Executive Officer
1 October 2025: ARC Group announces that the sale of its subsidiary ARC Research to S&P Dow Jones Indices ('S&P DJI'), a division of S&P Global (NYSE: SPGI), has been completed after receiving regulatory approvals.
The completion of the sale of ARC Research and its ARC Wealth Indices – the world's largest proprietary dataset of investment outcomes for private investor portfolios – will underpin the ARC Group’s strategy to drive forward its award-winning advisory division, which advises on $25 billion in assets for international families and charities.
Stephen McMahon, CEO of ARC Group, says:
“There is no better home for ARC Research and the ARC Wealth Indices than S&P DJI. We look forward to hearing of the continued growth and success of the Indices.”
“But the ARC Group will not be resting on its laurels. We are, perhaps, the largest multi-family office no one has ever heard of, but that is going to change. We have exciting plans for our private client and charity advisory business as we bring additional resources to bear following the S&P Dow Jones deal.
“We are now solely focused on helping clients worldwide formulate and implement efficient investment strategies across all asset classes. Leaning on our extensive analytical and data experience, we are looking to build compelling active and passive investment solutions with our existing providers, providing greater transparency to the private client asset arena.”
For more information:
Paul Farrow
Mobile: +44 (0) 7796 445635
Notes to editors:
About ARC Group
ARC Group, which is owned by its management and staff, nurtures a culture of independent thinking. It is not tied to, nor is it affiliated with, any investment management business. Operating from the UK and the Channel Islands, ARC’s advisory business advises circa 250 wealth individuals, families and endowments on over $25 billion of assets invested across more than 200 banks and investment firms for clients from over 20 jurisdictions around the world. Its consultants provide investment advice and counsel to individuals, their families and trusted advisors, adopting a problem-solving approach that seeks to ensure peace of mind for clients based on sound facts and good judgement.
