Entrusting your investments to a firm requires confidence in the people managing your capital. At One Oak Capital Management, LLC, a team of experienced professionals applies decades of combined expertise to every portfolio decision. Based in New York, this SEC-registered investment adviser values disciplined risk management, collaboration, and a consistent focus on
Stephen DiTursi is the firm's Chief Executive Officer and ChiefInvestment Officer. With 40 years of industry experience and more than a decade at One Oak Capital Management, LLC, he sets the strategic direction of the firm and oversees portfolio risk management. His leadership ensures that all investment decisions align with the firm's disciplined framework.
Prior to joining One Oak Capital Management, LLC, Stephen held senior roles at several major financial institutions. He served as Head of Fixed Income Trading and Sales at Stone & Young berg and was a member of itsOperating Committee. Earlier positions include Head of Taxable Fixed Income atJVB Financial Group, LLC; Head Industrial Bond Trader at Morgan Keegan and Keefe, Bruyette & Woods; and Head of Fixed Income Capital Markets and BoardDirector at Gruntal & Co.
Stephen earned a Bachelor of Science degree from Wagner College. Hisextensive experience across multiple market cycles provides clients with confidence in the firm's investment leadership.
Neil Crabb, Senior Portfolio Manager, brings 34 years of industry experience and has spent eight years with One Oak Capital Management, LLC. He oversees municipal research and trading systems, leads the strategic bond initiative, and develops new product offerings designed to meet evolving client needs.
Neil previously worked at Southwest Securities (now Hilltop Securities),where he was a municipal sales trader serving institutional and high-net-worth clients. Earlier in his career, he was a broker at Associated Brokers and helped launch a municipal trading system. As Managing Director at InternationalExchange Brokers, he managed opportunity strategies across investment-grade municipal, corporate, and government bonds.
Neil holds a Series 65 license and is a Uniform Investment Adviser. His systematic approach to fixed income portfolio construction supports consistent and disciplined execution.
James Kim also serves as Senior Portfolio Manager and has 18 years of industry experience, including five years at the firm. Before joining OneOak Capital Management, LLC, he was Chief Investment Officer andChairman of the Investment Committee at Alternative Capital Advisers, where he focused on alternative investments, including hedge funds, real estate, and life settlement strategies.
Previously, James was a Senior Research Analyst at Terrapin Asset Management and a member of the allocation committee, conducting due diligence across a wide range of investment strategies. He also contributed to acquisitions and helped manage mid-cap equity funds. He began his career in investment banking at Deutsche Bank and Chardan Capital Markets, working on mergers, acquisitions, IPOs, and SPAC transactions.
James graduated magna cum laude from Rutgers Business School with a Bachelor of Science in Finance and Sociology. He is a member of Beta Gamma Sigma and holds the Chartered Alternative Investment Analyst (CAIA)designation.
Keith Cronin, Portfolio Manager, has 31 years of industry experience andjoined One Oak Capital Management, LLC in 2014. He manages corporate bond portfolios, including security selection and hedging strategies, and focuses on identifying relative value opportunities while managing risk.
Before joining the firm, Keith served as Director of Fixed Income atOppenheimer & Co., where he conducted global fixed income research. Earlier roles include Fixed Income Trader at JVB Financial and proprietary corporate bond trader at HSBC Private Bank. He holds an Honors Master's Degree from theNational University of Ireland.
Michael DiTursi, Portfolio Manager, brings 11 years of industry experience and has been with the firm for four years. He manages municipal and corporate bond portfolios, evaluates economic data, monitors interest rate trends, and supports hedging strategies. Michael previously worked on interest rate derivative desks at Sumitomo Mitsui BankingCorporation and Morgan Stanley. He earned a Bachelor of Arts degree from RollinsCollege, where he was a member of the varsity golf team.
Joseph H. Marren is Head of Research and a Portfolio Manager, with 49years of industry experience. He oversees research across all asset classes andpreviously served as President, CEO, and CIO of KStone Partners LLC, afunds-of-hedge-funds firm specializing in municipal securities.
Earlier in his career, Joe spent more than two decades in senior mergers and acquisitions roles at Citigroup, Credit Suisse, Donaldson, Lufkin &Jenrette, and Sagent Advisors. He is the author of two M&A books published by Dow Jones Irwin and has taught and lectured at NYU Stern, Fordham LawSchool, Columbia Law School, and Columbia Business School.
Joe holds a BBA from the College of William & Mary, a JD from FordhamLaw School, and an MBA from NYU Stern School of Business.
Joanne Costantini serves as Chief Financial Officer and Chief Compliance Officer, bringing 30 years of industry experience and a decade at OneOak Capital Management, LLC. She oversees regulatory compliance, client onboarding, reporting, and operational infrastructure.
Previously, Joanne streamlined performance reporting systems at THB Asset Management, led successful RFP processes at Armstrong Shaw Associates, and managed hedge fund accounting teams at SS&C Technologies. She earned aBachelor of Arts degree from Iona College.
Miranda Crabb leads Investor Relations and brings 11 years of experience in management and marketing. She focuses on client engagement, relationship development, and communication. Before joining the firm in 2024, Miranda was aDirector at Baylor Scott & White Quality Alliance. She holds a Master ofScience degree from the University of Texas at Arlington.
OneOak Capital Management, LLC operates with a team-based structure that integrates portfolio management, research, risk management, operations, and client service. Portfolio managers and analysts collaborate closely to evaluate opportunities in municipal and corporate bond markets, with risk management embedded in every decision.
Operations and compliance ensure regulatory integrity and accurate reporting, while investor relations provides clear communication to help clients understand portfolio strategy and performance.
The firm's professionals maintain industry licenses and credentials that reflect ongoing education and expertise, including Series 65 licensure, CAIA designation, and advanced degrees. These qualifications support the firm's fiduciary responsibility and commitment to best practices.
The leadership culture emphasizes transparency, disciplined decision-making, and long-term capital preservation. By prioritizing risk assessment alongside opportunity evaluation, the firm seeks to protect client capital while pursuing attractive returns.
Clients can benefit from a team with deep experience across municipal bonds, corporate bonds, and alternative credit strategies. One Oak Capital Management, LLC offers several investment strategies designed to address different objectives, including tax-advantaged income, total return, low volatility, and absolute return approaches.
The firm's expertise in the complex municipal bond market allows it to identify opportunities that may be overlooked or inaccessible to individual investors.
The firm's strategies have received industry recognition, including multiple PSN Top Gun awards for the Enhanced Municipal and Enhanced Taxable Municipal Portfolios across one-, three-, and five-year periods ending September 30, 2025. While past performance does not guarantee future results, these honors reflect a consistent and disciplined investment process.
(Disclaimer: References made to awards/rankings are not an endorsement by any third party to invest with One Oak and are not indicative of future performance. Investors should not rely on awards/rankings for any purpose and should conduct their own review prior toinvesting. Zephyr/PSN is an asset and wealth management software marketed byInforma (LSE: INF). PSN is a database of Separately Managed Accounts managed byZephyr. One Oak does not compensate Zephyr for inclusion in the PSN database,nor does it compensate Zephyr for consideration for, or awarding of, the PSNTop Gun designation.)
Clients also benefit from direct access to firm leadership. Stephen DiTursi remains actively involved in client discussions, ensuring transparency and alignment between strategy and execution.
Selecting an investment manager involves evaluating experience, discipline, and alignment with your goals. One Oak Capital Management, LLC offers a seasoned team, a collaborative culture, and a structured approach to fixed income investing.One Oak brings the experience and discipline required to navigate changing markets with confidence.
Contact One Oak Capital Management to learn more about how the team can help you achieve your investment objectives.
