Meet our team of experts

Meet the team

One of the key differentiators between prime services providers is the team each has assembled to serve their clients. Our team is made up of experts from both the buy- and sell-side, fintech, and prime brokerage to provide you with a global perspective and problem-solving skills.

Prime Brokerage
Michael Dejarnette

Michael DeJarnette

Managing Director & Co-head of StoneX Prime Services, StoneX Financial Inc. – BD Division

Prior to launching StoneX Prime Services, Michael served as Managing Director and Co-Head of Cowen’s U.S. Prime Brokerage services when they acquired ConvergeEx, where he was Executive Managing Director of ConvergeEx Execution Solutions. In this role, he managed operations and business development for ConvergeEx’s global clearing and prime services businesses. He has more than 20 years of experience in the financial services industry, with particular emphasis in prime brokerage.

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  • Prime Brokerage
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Doug Nelson

Doug Nelson

Managing Director & Co-head of StoneX Prime Services, StoneX Financial Inc. – BD Division

Prior to launching StoneX Prime Services, Doug was Managing Director and Co-Head of Cowen’s U.S. Prime Brokerage services. Prior to Cowen’s acquisition of ConvergeEx, he was Executive Managing Director of ConvergeEx Execution Solutions and Head of ConvergeEx's Global Clearing and Prime Services businesses. In this role, Doug managed ConvergeEx’s prime services and global clearing products and services offered in over 100 global market centers. He also served as a member of ConvergeEx’s executive committee.

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  • Prime Brokerage
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Benjamin Brown

Benjamin Brown

Managing Director of Business Development of StoneX Prime Services, StoneX Financial Inc. – BD Division

Ben’s career spans over 20 years, 12 of which have been in prime brokerage. He has held various business development management roles at both ConvergeEx and Cowen. His buy/sell side trading experience gives him unique understanding of customers’ needs

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  • Prime Brokerage
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Nicholas Dejarnette

Nicholas DeJarnette

Deputy COO, StoneX Financial Inc. – BD Division

Co-Founder of NorthPoint Trading Partners which was acquired by ConvergEx Group in 2009. Nick was COO of ConvergeEx Prime Services until it was acquired by Cowen. During his tenure with Cowen Execution Services LLC, Nick served as a Managing Director.

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  • Prime Brokerage
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Will Nuckols

Mike McLoughlin

Head of Execution Trading of StoneX Prime Services, StoneX Financial Inc. - BD Division

Mike brings 30 years of institutional trading experience, working at DLJ, Credit Suisse & Prudential, and the last ten years in prime services with ConvergEx and Cowen. Currently he heads up the Execution Trading desk providing clients execution in multiple products, training and education in algorithms, order routing and EMS & OMS systems.

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  • Prime Brokerage
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Solving problems for our clients

When you’re ready to put us to work solving your market access and liquidity issues, it is simple to get started.

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Capital Introduction
Chris Edgar

Chris Edgar

Managing Director and Co-Head of Capital Introduction for StoneX Prime Services, StoneX Financial Inc. – BD Division

Chris was Managing Director on the Capital Introduction team and Head of the Business Consulting at Cowen Prime Services. Prior to that, he built and led the cap intro team at ConvergEx Prime Services which acquired North Point Trading partners where he played the same role starting in 1992.

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  • Capital Introduction
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Steven Grabowski

Steven Grabowski

Managing Director & Co-Head of Capital Introduction for StoneX Prime Services, StoneX Financial Inc. – BD Division

Steve has 15 years of experience in the investment management business. In his current role, Steve serves our outsourced trading and prime brokerage clients by providing consulting and capital introduction. Prior to joining StoneX, Steve was a managing director and an investment consultant with Cambridge Associates and Prime Buchholz where he worked with a wide range of endowment, foundation, and family office clients.

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  • Capital Introduction
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Securities Lending
John Nacincik

John Nacincik

Managing Director, Head of Principal Equity Finance

John will lead the securities lending team as they arrange global lending, financing, and location services for StoneX Prime Services. Starting with UBS in 1987 and establishing their fully paid, conduit, and international lending operations, John has managed securities lending operations for a variety of firms, including, SunGard, Knight Capital, and ConvergEx, and most recently consulting with FIS Capital Markets’ on their securities lending and clearing solutions.

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  • Securities Lending
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Outsourced Trading
Andrew Caplan

Andrew Caplan

Head of Outsourced Trading, INTL Fillmore Advisors, LLC

Andrew heads the trading desk. He has 23+ years of buy-side and sell-side experience in institutional trading across the globe, notably at Barclays in Hong Kong, JP Morgan and Lehman Brothers in London, and Morgan Stanley in New York.

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  • Outsourced Trading
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Joe Bialous

Joe Bialous

Global Trading, INTL Fillmore Advisors, LLC

Joe’s 15 years of buyside experience has taken him to Hong Kong, London and finally settling in New York trading products across the capital structure. Most recently, Joe was Head of Trading at Slate Path Capital and ran trading at TPG Axon Capital.

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  • Outsourced Trading
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Elliot Bullock

Elliot Bullock

US/EU Trader, INTL Fillmore Advisors, LLC

From our Park City, UT office, Elliot specializes in trading global equity markets. He has 15 years capital market experience, working extensively in both Asia and the US. Elliot has held the CFA® designation since 2015.

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  • Outsourced Trading
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Remus Gaga

Remus Gaga

Director - Execution Trading, INTL Fillmore Advisors, LLC

Prior to StoneX, Remus was on the Global Portfolio Trading desk as a director at Cowen and Convergex for over 14 years as a Senior Vice President. He has traded both US and International baskets on behalf of the firm’s clients

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  • Outsourced Trading
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Noah Garland

Noah Garland

Managing Director - Outsourced Trading, INTL Fillmore Advisors, LLC

Noah has 15+ years of experience of sell-side and buy-side experience, with a focus on global equity markets. In his prior role, Noah was Head of International Trading for Cowen in London, where he was located for seven years. In this role, he focused on EMEA and APAC equity markets, ranging from ranging from developed, emerging and frontier.

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  • Outsourced Trading
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John Geron

John Geron

Global Trading, INTL Fillmore Advisors, LLC

John has more than 24 years of experience in trading international equity markets and is based in our New York office. Previously a managing director at UK brokerage firm Tellimer in charge of US equity sales trading, John also spent 13 years at Auerbach Grayson as a senior vice president covering global markets from Latin America to Southeast Asia.  Before joining Auerbach Grayson, he was vice president at Commerzbank trading Pan-European securities and began his career at Bear Stearns as a market maker for international stocks listed on NASDAQ.

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  • Outsourced Trading
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Stephen Guihan

Stephen Guihan

Global Trading, INTL Fillmore Advisors, LLC

For 25 years Stephen has been on the buyside trading global macro at Mistell Management, Graham Capital and spent most of his career at Soros Fund Management as Head of Trading. Stephen covers the Asian trading hours from New York.

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  • Outsourced Trading
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Chip Miller

Chip Miller

Managing Director, INTL Fillmore Advisors, LLC

Based in our Dallas office, Chip brings over 25 years of capital markets experience including 7 years running buy side trading and operations. Prior to joining StoneX, Chip previously worked on the sell side at Jefferies, Convergex, and Cowen.

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  • Outsourced Trading
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Jim Olsson

Jim Olsson

COO/CCO, INTL Fillmore Advisors, LLC

Running operations and compliance for INTL Fillmore, Jim has over 28 years of financial services experience. Before making the move to his current position, he was a Director in Prime Services for both Barclays and UBS in Hong Kong. Jim also served in the US Navy and is a veteran of Operation Desert Storm.

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  • Outsourced Trading
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Jean Marie Poster

Jean Marie Poster

Global Trading, INTL Fillmore Advisors, LLC

Jean Marie is based in New York and has over 17 years of buyside experience trading and sourcing public and private investments across the capital structure. She most recently worked for a family office as their Head Trader.  Previously she was a Managing Director and Head Trader at JANA Partners and earlier in her career Head Equity Trader at PartnerRe Asset Management.

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  • Outsourced Trading
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High-touch service

With our Boots-on-the-Ground presence in our clients’ markets and our hands-on approach to understanding their businesses from the inside out, StoneX professionals are able to help clients discover new market opportunities, manage market risk, and achieve results they may not have been able to on their own.

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