On October 1, 2026, StoneX announced a new foreign exchange booking center in Singapore. The language was technical: local pricing, execution, SG1 connectivity. Gregory Kallinikos, its Asia Pacific chief executive, described a more familiar ambition. Bring the business closer to its customers. In a profession that can move money across oceans, being in the right neighbourhood still counts.
The center added Singapore capacity to an FX network with hubs in New York and London. Regional clients would have pricing and support aligned with their working day. Kallinikos’s contribution to the announcement concerned the experience across execution, hedging and settlement. It was a compact description of his recurring subject: what happens between having access to a market and being able to use it.
That subject connects much of his working life. There is the earlier corporate finance career, the acquisitions remit, the Singapore derivatives business, and the subsequent additions in credit, commodities and foreign exchange. His career makes an interesting case for paying attention to the apparently unglamorous parts of finance. Somebody has to make the connection work after the announcement has been admired.
A year at an airline, then the capital markets
Before the regional remit came a management degree. Kallinikos studied at Brunel University from 1999 to 2003, with a course covering organisational management, accounting, finance, economics and marketing. His studies included an emphasis on e-commerce and a year’s work placement with British Airways. It is an appealing detail in a career later occupied with cross-border connections, although the airline placement belongs to his student years, rather than an invented origin myth.
He earned a BSc with honours in Management Studies and an LLM in Venture Capital at the University of Westminster. The combination put business organisation beside the legal study of financing. His subsequent corporate finance work focused on equity capital markets for energy and mining businesses. These are sectors where money raised on a screen is tied to something stubbornly physical.
In 2011 he joined the group that became StoneX. As Chief of Staff for Europe, the Middle East and Africa, he led mergers, acquisitions and corporate development outside the Americas. The job gave him an international remit before his Asia Pacific leadership role. It also places the later Singapore expansion in a longer professional sequence: he had worked on growing a business before taking responsibility for operating one across the region.
- 2011Joins the group
- 2019Singapore clearing milestones
- 2024Abaxx + ASX memberships
- 2026Local FX booking center
Singapore gets the machinery
In March 2019, the Singapore subsidiary of INTL FCStone, StoneX’s former name, signed an agreement to acquire UOB Bullion and Futures’ futures and options brokerage and clearing business. The announcement was conditional on regulatory approval. Kallinikos, then described as Deputy CEO, Asia, focused on the established customer base and the additional regional capacity the business would bring.
By September, INTL FCStone had joined Singapore Exchange as a derivatives trading and clearing member. Kallinikos’s title at that point combined chief executive of the Singapore company with deputy regional CEO. The exchange membership followed an upgrade to the company’s Singapore Capital Markets Services licence. The sequence matters: an acquired business, regulatory permissions and an exchange relationship each contributed a different piece.
In the Singapore episode of StoneX’s Boots on the Ground film series, Kallinikos calls the company a “local shop for local customers”. He also describes a role serving international customers who need Asia Pacific expertise. Lian Tuck Lee and colleagues appear alongside him, discussing trading-floor experience, client relationships and the physical commodities behind electronic transactions. The regional CEO is one voice in a team whose local knowledge gives the proposition substance.
“local shop for local customers”
Gregory Kallinikos · Boots on the Ground
More than one reason to pick up the phone
The next addition changed what that Singapore business could offer. In July 2022, StoneX launched an institutional credit operation in Asia, establishing a fixed income sales and trading desk in Singapore. Robert Hong was hired to lead it after roles at Cantor Fitzgerald and Deutsche Bank. The planned offering covered credit from investment-grade debt to distressed situations.
Kallinikos linked the desk to the derivatives clearing and execution business developed in 2019. His phrase was “regional specialization within a global product offering”. The wording is plain, but the organisational problem is substantial: a customer needs expertise suited to the region, while the firm wants that customer to benefit from its wider network.
The appeal of this career is in that gradual accumulation of capabilities. A new product desk changes the conversation an existing customer can have with the firm. It also brings in specialists with experience the regional chief executive cannot personally supply. Hong’s appointment makes the point neatly. Expanding the menu requires somebody who knows how to cook what has just been added.
Two memberships, two different jobs
January 2024 brought another piece of infrastructure. StoneX Financial became the first approved clearing and trading member of Singapore-based Abaxx Exchange and its clearinghouse. The announced contract suite included physically deliverable futures for liquefied natural gas, nickel sulphate and carbon. Kallinikos spoke about giving customers another way to manage inventory and market risk, following collaboration with Abaxx’s team.
In April, StoneX Financial in Australia became a direct derivatives clearing and trading member of ASX. This addressed a different set of customer needs, giving domestic and overseas participants an additional provider through which to access Australian derivatives. Kallinikos emphasised existing customer relationships as well as the prospect of new ones.
Placed side by side, the memberships show why a regional financial business cannot be understood simply by counting offices. An exchange membership adds a specific capability in a specific market. Abaxx concerned a new marketplace and its proposed commodity contracts. ASX concerned access to an established Australian derivatives market. Both announcements sit within his regional remit; their usefulness depends on very particular customers and transactions.
India, on both sides of the screen
India brought a second dimension to the expansion. In October 2024, StoneX announced offices in Pune and Bengaluru with a combined capacity of 800 seats. It had established its Indian Global Capability Centre in 2019 and, by the announcement, employed more than 550 people in the country. Those figures describe that moment, rather than today’s headcount.
Kallinikos emphasised the technology and financial services talent available there. The company was building the teams that support its wider operations, alongside its customer-facing market activities. The same announcement described an office in GIFT City and precious metals trading on the India International Bullion Exchange. India was becoming both a place to build the organisation and a market in which to transact.
A March 2025 Dubai roundtable put him alongside Group CEO Philip Smith and regional metals leaders Amar Singh and Anshuman Sharma, with Regional Business Director Ritu Singh. Their discussion examined the route from Dubai into India, including established banking and regulatory relationships and GIFT City’s cross-border role. His later post about the Mumbai office opening dwelt on gold’s place in Indian culture. For a financial executive, that is a useful thing to remember: a commodity can arrive with meanings a price chart never displays.
A microphone in Kyoto
At StoneX’s client dinner alongside the 2025 LBMA/LPPM precious metals conference in Kyoto, Kallinikos gave a speech. A photograph from the evening catches him with a microphone in one hand and a small gold-coloured object in the other. The image offers a welcome interruption to the vocabulary of execution and clearing. Here is an executive addressing a room, with something small enough to hold between his fingers.
The event brought together more than 100 clients, partners and members of the metals team. In his account of the evening, he emphasised relationships built over years and their value when markets become difficult. The dinner fits the wider pattern of his public work: proximity expressed through an actual meeting, rather than another dot on a map.
There is a similar emphasis in his participation in StoneX’s twentieth-anniversary conversation about its Asian business, alongside Smith. The discussion looks back at local execution, language capabilities and support in the same time zone. These are practical considerations. For the customer at the other end of the call, the difference between a global network and a distant one may be whether someone can help during the hours the customer is working.

Making room for the next conversation
Kallinikos’s public commitments also extend to people developing their careers. FWA Singapore lists him among its Male Champions, senior leaders supporting women’s advancement and gender inclusion. Its 2026 mentoring programme names him as a mentor. The programme connects mid-career women in finance with senior executives outside their own organisations, giving the relationship a purpose beyond internal reporting lines.
That is a concrete addition to a portrait otherwise dominated by commercial expansion. A mentor offers a different kind of access: time with someone who has encountered decisions the other person may be approaching. The programme creates a setting for that exchange. The title is easy to put on a biography; the useful part happens in the conversation.
His latest Singapore FX initiative returns the story to location, working hours and service. Across his public career, the additions vary: an acquired business, a credit desk, an exchange membership, an Indian capability centre, a mentoring commitment. The recurring question is who can now reach what, and with whose help. Kallinikos’s working subject is the space between a customer and a market. He keeps adding ways to cross it.