StoneX Executive and Leadership Team

October, 2026

Leadership Overview

StoneX has 10 executives leading key functions including financial oversight, global operations, digital transformation, regional market expansion, and commodity trading.

Committed to connecting clients to global markets, StoneX delivers institutional-grade financial services through advanced digital platforms and deep market expertise to ensure seamless trade execution.

Leadership Roles at StoneX

  • Chief Executive Officer (Australia) - Nicholas Orssich
  • Chief Executive Officer, Asia Pacific - Greg Kallinikos
  • Chief Executive Officer, StoneX Financial Inc. - Anthony Di Ciollo
  • Chief Financial Officer - William Dunaway
  • Chief Operating Officer, Sales Team Client Integration - Ricardo Leal
  • Chief Operating Officer, Stonex Digital - Keith Coyne
  • Chief Operating Officer (APAC) - Raghuraman Uthaman
  • Deputy Chief Operating Officer, Securities - Nicholas DeJarnette
  • FCM Division President Latin America - Oscar Schaps
  • President, Soft Commodities (Brazil) - Ariel Coelho
  • Nicholas Orssich - Chief Executive Officer (Australia)

    Nicholas Orssich, the Chief Executive Officer (Australia) at StoneX, leads the strategic direction and market presence within the Australian financial landscape. Overseeing the delivery of institutional-grade services, the Chief Executive Officer (Australia) ensures that local clients gain seamless access to global markets through the firm's digital platforms and clearing services. This leadership role involves cultivating deep expertise and providing high-touch service to traders and investors, reinforcing the company's reputation for excellence. Nicholas Orssich manages the regional business operations, driving initiatives that align with the firm's global mission while addressing the unique requirements of the Australian market. By fostering strong partnerships and maintaining operational integrity, Orssich supports the expansion of the firm's footprint in the region. The Chief Executive Officer (Australia) focuses on delivering value through every stage of the trade lifecycle, from initial consulting to post-trade settlement, ensuring consistent performance and growth.

    Greg Kallinikos - Chief Executive Officer, Asia Pacific

    Greg Kallinikos, the Chief Executive Officer, Asia Pacific at StoneX, architects the overarching growth strategy for the firm across the Asia-Pacific region. Overseeing the expansion of institutional-grade financial services, the Chief Executive Officer, Asia Pacific ensures that the company effectively connects regional organizations and investors to global markets. This leadership role involves managing high-level relationships and driving the adoption of the firm's end-to-end clearing and execution services. Greg Kallinikos coordinates with regional heads to provide boots-on-the-ground intelligence and deep expertise, ensuring that clients receive tailored support throughout the trade lifecycle. By aligning regional operations with the global corporate mission, Kallinikos enhances the firm's competitive position in the APAC market. The Chief Executive Officer, Asia Pacific focuses on long-term sustainability and market impact, ensuring that the organization remains a trusted partner for traders and investors navigating the complexities of the global financial ecosystem.
    Greg Kallinikos

    Anthony Di Ciollo - Chief Executive Officer, StoneX Financial Inc.

    Anthony Di Ciollo, the Chief Executive Officer, StoneX Financial Inc. at StoneX, directs the core business operations and strategic initiatives for the firm's primary financial entity. Overseeing the delivery of institutional-grade services, the Chief Executive Officer, StoneX Financial Inc. ensures that the company maintains its position as a leader in connecting traders and investors to global markets. This leadership role involves managing the end-to-end trade lifecycle, from consulting to post-trade clearing and settlement. Anthony Di Ciollo drives the firm's commitment to high-touch service and deep expertise, ensuring that clients receive the support necessary for successful market participation. By fostering a culture of operational excellence and innovation, Di Ciollo supports the firm's growth and market impact. The Chief Executive Officer, StoneX Financial Inc. collaborates with the broader leadership team to execute the corporate mission, ensuring that the firm remains a trusted and reliable partner in the global financial ecosystem.
    Anthony Di Ciollo

    William Dunaway - Chief Financial Officer

    William Dunaway, the Chief Financial Officer at StoneX, directs the global financial strategy and capital allocation for the firm. Overseeing fiscal reporting, treasury management, and investor relations, the Chief Financial Officer ensures the integrity of the institutional-grade financial services network. This leadership role involves maintaining robust balance sheets to support end-to-end clearing and execution services across diverse market ecosystems. By optimizing capital efficiency, William Dunaway directly impacts the long-term stability of the organization. Dunaway manages complex regulatory compliance requirements while driving growth initiatives that align with the broader corporate mission. Through rigorous financial analysis, the Chief Financial Officer provides the necessary foundation for the firm to deliver high-touch service and deep expertise to traders and investors worldwide, ultimately securing the financial health required for sustained market participation and competitive advantage in the global financial landscape.
    William Dunaway

    Ricardo Leal - Chief Operating Officer, Sales Team Client Integration

    Ricardo Leal, the Chief Operating Officer, Sales Team Client Integration at StoneX, architects the operational frameworks necessary for seamless client onboarding and integration into the global markets ecosystem. Managing the intersection of sales strategy and technical execution, the Chief Operating Officer, Sales Team Client Integration drives the adoption of digital platforms among institutional partners. This role focuses on streamlining the lifecycle of a trade, from initial consulting to post-trade settlement, ensuring that clients receive consistent, high-touch service. Ricardo Leal coordinates with cross-functional teams to refine the integration process, thereby enhancing the overall user experience for traders and investors. By removing friction in the client journey, Leal supports the expansion of the firm's market reach. The Chief Operating Officer, Sales Team Client Integration maintains a sharp focus on operational scalability, ensuring that the infrastructure remains responsive to the evolving needs of the global financial community.

    Keith Coyne - Chief Operating Officer, Stonex Digital

    Keith Coyne, the Chief Operating Officer, Stonex Digital at StoneX, drives the technological evolution of the firm's digital platforms. Overseeing the development and deployment of advanced trading tools, the Chief Operating Officer, Stonex Digital ensures that the company remains at the forefront of the global markets ecosystem. This leadership role involves bridging the gap between complex financial requirements and user-friendly digital interfaces, facilitating efficient trade execution for institutional clients. Keith Coyne manages the operational roadmap for digital initiatives, prioritizing security, speed, and reliability in every transaction. By integrating cutting-edge technology into the firm's service model, Coyne enhances the accessibility of global markets for traders and investors. The Chief Operating Officer, Stonex Digital collaborates with engineering and product teams to maintain a competitive edge, ensuring that the digital infrastructure supports the firm's commitment to providing deep expertise and high-touch service throughout the entire trade lifecycle.

    Raghuraman Uthaman - Chief Operating Officer (APAC)

    Raghuraman Uthaman, the Chief Operating Officer (APAC) at StoneX, directs the operational activities across the Asia-Pacific region. Overseeing the execution of regional business strategies, the Chief Operating Officer (APAC) ensures that the firm's institutional-grade services meet the specific demands of local markets. This role involves managing the infrastructure for clearing, custody, and settlement, providing clients with reliable access to global ecosystems. Raghuraman Uthaman coordinates with local teams to deliver boots-on-the-ground intelligence and high-touch service, fostering strong relationships with regional traders and investors. By optimizing operational workflows within the APAC territory, Uthaman supports the firm's broader growth objectives and market penetration. The Chief Operating Officer (APAC) maintains a focus on regulatory alignment and operational excellence, ensuring that the regional business remains agile and responsive to the dynamic nature of the financial markets while upholding the high standards of the organization.

    Nicholas DeJarnette - Deputy Chief Operating Officer, Securities

    Nicholas DeJarnette, the Deputy Chief Operating Officer, Securities at StoneX, manages the operational efficiency of the securities division. Overseeing the clearing, custody, and settlement processes, the Deputy Chief Operating Officer, Securities ensures that the firm provides reliable and secure access to global markets. This role involves optimizing the infrastructure that supports institutional-grade trading, ensuring that every transaction meets the highest standards of execution. Nicholas DeJarnette collaborates with other C-suite leaders to refine operational workflows and enhance the delivery of high-touch service to clients. By focusing on the technical and procedural aspects of securities trading, DeJarnette supports the firm's commitment to deep expertise and market connectivity. The Deputy Chief Operating Officer, Securities maintains a rigorous focus on risk management and operational excellence, ensuring that the securities division remains a cornerstone of the firm's ability to serve traders and investors effectively in a fast-paced financial environment.

    Oscar Schaps - FCM Division President Latin America

    Oscar Schaps, the FCM Division President Latin America at StoneX, leads the futures commission merchant operations across the Latin American market. Overseeing the provision of clearing and execution services, the FCM Division President Latin America ensures that regional clients gain access to global markets through the firm's robust digital platforms. This role involves providing boots-on-the-ground intelligence and deep expertise to help traders and investors navigate the complexities of the commodity and financial markets. Oscar Schaps manages the regional team to deliver high-touch service, ensuring that every trade is supported from initial consulting to final settlement. By focusing on the unique needs of the Latin American market, Schaps drives the firm's growth and strengthens its presence in the region. The FCM Division President Latin America maintains a focus on operational efficiency and client satisfaction, ensuring that the firm remains a preferred partner for institutional-grade financial services in the territory.

    Ariel Coelho - President, Soft Commodities (Brazil)

    Ariel Coelho, the President, Soft Commodities (Brazil) at StoneX, directs the strategic operations for the soft commodities sector within the Brazilian market. Overseeing the end-to-end trade lifecycle for agricultural products, the President, Soft Commodities (Brazil) ensures that local producers and traders have reliable access to global markets. This role involves providing deep expertise and boots-on-the-ground intelligence, facilitating efficient clearing and execution services for institutional clients. Ariel Coelho manages the regional team to deliver high-touch service, ensuring that the firm's offerings align with the specific demands of the Brazilian commodity landscape. By optimizing the supply chain and trade processes, Coelho supports the firm's commitment to connecting clients to the global ecosystem. The President, Soft Commodities (Brazil) focuses on driving growth and maintaining operational excellence, ensuring that the firm remains a key player in the soft commodities market while upholding the high standards of the organization.
    Ariel Coelho

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    Frequently Asked Questions Regarding StoneX Top Executives and Leadership Team

    Who leads StoneX?
    StoneX is led by Nicholas Orssich (Chief Executive Officer (Australia)), along with executives such as Greg Kallinikos (Chief Executive Officer, Asia Pacific) and Anthony Di Ciollo (Chief Executive Officer, StoneX Financial Inc.).
    Who is part of StoneX’s executive team?
    The executive team of StoneX includes leaders such as Nicholas Orssich (Chief Executive Officer (Australia)), Greg Kallinikos (Chief Executive Officer, Asia Pacific), Anthony Di Ciollo (Chief Executive Officer, StoneX Financial Inc.) and other senior executives.
    How many executives does StoneX have?
    StoneX has 10 executives leading key business areas.
    What roles are included in StoneX’s leadership team?
    The leadership team of StoneX includes roles such as Chief Executive Officer (Australia), Chief Executive Officer, Asia Pacific, Chief Executive Officer, StoneX Financial Inc., Chief Financial Officer, Chief Operating Officer, Sales Team Client Integration.