StoneX Group has begun reflecting its new StoneX Trading brand across its wider retail brokerage infrastructure, moving the former City Index business beyond a standalone UK rebrand and positioning it alongside FOREX.com and StoneX One within the group’s self-directed offering.
StoneX’s current pages for individual investors and self-directed traders now list StoneX One, FOREX.com and StoneX Trading as core trading platforms under the group’s umbrella. StoneX Trading is presented as the UK-focused offering for spread betting, contracts for difference, foreign exchange, indices, commodities and shares.
The change follows StoneX’s announcement on Sept. 9 that City Index, the UK trading brand dating back to 1983, was being relaunched as StoneX Trading.
StoneX said the new website was already live and that the updated identity was being introduced across digital channels, mobile applications and client communications. Existing customers are not being migrated to new accounts or platforms as part of the change, with StoneX saying their accounts, support arrangements and trading services remain unchanged.
The wider StoneX website now makes that integration more explicit.
On its self-directed client page, the group describes its retail infrastructure as including StoneX One, FOREX.com and StoneX Trading. StoneX One focuses primarily on securities such as equities, ETFs, options and mutual funds, while FOREX.com continues to provide FX and CFD trading across multiple international markets. StoneX Trading occupies the spread betting, FX and CFD position previously associated with City Index in the UK.
StoneX also now markets StoneX Trading as having been used by more than 1 million traders. The accompanying disclosure defines that figure as StoneX retail trading live and demo accounts globally during the previous two years, rather than necessarily one million active StoneX Trading customers.
The platform provides access to more than 13,500 markets, including thousands of shares alongside forex, indices, commodities and other instruments. Its UK platform pages also cite an average execution speed of 0.002 seconds and a 99.99% successful trade-execution rate.
That scale is being attached directly to the StoneX name at a group level rather than remaining behind City Index branding.
The transition marks another stage in the integration of GAIN Capital, which StoneX acquired in July 2020. The $329 million transaction brought both FOREX.com and City Index into the company and significantly increased StoneX’s exposure to self-directed retail trading. GAIN was serving more than 130,000 retail and institutional customers across its platforms when the acquisition was agreed.
At the time, StoneX said the acquisition would add a major digital distribution channel, increase its retail reach and create opportunities to consolidate infrastructure and capture more value from combined trading flows.
FOREX.com has remained an independent customer-facing brand since that acquisition and continues to be expanded geographically. StoneX launched FOREX.com in Singapore in 2025, for example, through its locally regulated StoneX Financial entity.
City Index has now taken a different path.
Rather than retaining the acquired name, StoneX is absorbing it into the corporate identity while preserving the underlying trading business. The group’s own corporate history has already been updated to describe the 2020 GAIN acquisition as adding FOREX.com and StoneX Trading to its self-directed footprint, effectively replacing the City Index reference in its historical narrative.
The branding change comes as StoneX’s retail trading business faces a softer revenue environment.
Its Self-Directed/Retail segment generated $96.3 million in operating revenue during the three months ended June 30, 2026, down 13% from $110.7 million a year earlier. FX and CFD operating revenue fell 19% to $64.7 million, while average daily FX/CFD contract volume declined 27% to $6.81 billion. Over the first nine months of fiscal 2026, Self-Directed/Retail operating revenue was down 8% to $297.2 million.
StoneX has not linked the rebranding to those figures. The company instead describes the change as bringing retail traders closer to the scale, expertise and market intelligence of the wider StoneX organisation.
But the appearance of StoneX Trading throughout the group’s retail infrastructure confirms that the move is no longer simply a redesign of the former City Index UK website. StoneX is now treating the name as an established component of its global self-directed business.
StoneX Is Simplifying Its Retail Brand Architecture
The more interesting question is not why StoneX changed the logo above City Index accounts.
It is why the company has decided, six years after acquiring GAIN Capital, that City Index no longer needs to exist as a separate corporate identity.
The answer may lie in what StoneX has gradually become.
When the company bought GAIN in 2020, StoneX was acquiring more than customer accounts. It was buying retail distribution, technology and two recognised brokerage brands. Keeping FOREX.com and City Index intact initially made sense because both brought existing customer recognition that the institutional-heavy StoneX name did not possess among retail traders.
Six years later, that calculation looks different.
StoneX itself is now being pushed much harder as a customer-facing financial-services brand. StoneX One uses the corporate name for securities trading. StoneX Pro uses it in institutional markets. Now StoneX Trading places the company’s name directly over the former City Index CFD and spread-betting operation.
The structure is becoming easier to understand: StoneX is the master brand, while the word after it describes the service.
FOREX.com is the obvious exception.
There are good reasons for that. Its name describes precisely the market in which the brokerage built its reputation, and StoneX continues to use the brand across multiple jurisdictions. Replacing FOREX.com could destroy more brand equity than it creates.
City Index presented a different calculation. Its name carried considerable history in Britain, but did not tell a new customer who ultimately stood behind the business. StoneX Trading immediately links the retail platform to a publicly listed global financial company.
That can matter in leveraged trading, where balance-sheet strength, execution infrastructure and counterparty credibility are important selling points.
There could also be operational benefits to the shift. Maintaining acquired brands across websites, applications, communications, compliance disclosures and marketing systems creates duplication. StoneX explicitly identified infrastructure consolidation as an opportunity when it bought GAIN in 2020. A common customer-facing identity does not automatically eliminate those costs, but it removes another layer between an acquired business and its parent.
The timing is also notable because retail FX and CFD revenues have weakened this year. There is no evidence the rebrand is a response to falling volumes, but softer activity increases the value of extracting more efficiency and cross-selling opportunities from the same retail infrastructure.
The real signal will be what happens next.
If StoneX Trading remains essentially City Index under a new sign, this is primarily a branding exercise. If StoneX begins connecting it more closely to research, products, technology and market access elsewhere in the group, the change will look more like the final stage of a six-year integration.
The updated group pages suggest StoneX is aiming for the latter.
Shane Neagle is a financial markets analyst and digital assets journalist specializing in cryptocurrencies, memecoins, prediction markets, and blockchain-based financial systems. His work focuses on market structure, incentive design, liquidity dynamics, and how speculative behavior emerges across decentralized platforms.
He closely covers emerging crypto narratives, including memecoin ecosystems, on-chain activity, and the role of prediction markets in pricing political, economic, and technological outcomes. His analysis examines how capital flows, trader psychology, and platform design interact to create rapid market cycles across Web3 environments.
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