Investors seeking success in fixed income need more than market access—they need deep expertise, disciplined risk management, and the ability to act decisively when opportunities arise. One Oak Capital Management seeks to deliver.
OneOak Capital Management was founded in February 2013 by Steve DiTursi, CEO andChief Investment Officer, with a clear objective: to create active trading strategies designed to generate strong, risk-adjusted returns for high-net-worth individuals and family offices.
Steve brings more than 40 years of experience in fixed income markets. Over his career, he led fixed income trading desks at multiple regional dealers across the United States. His expertise spans risk management, identifying inefficiencies in over-the-counter fixed income markets, and consistently extracting alpha.
From its inception, One Oak Capital Managementwas built on an institutional-grade operating framework. This was not a firm finding its footing—it launched with structure, experience, and a well-defined purpose.
The firm began with a single investment-grade municipal hedge fund, establishing proof of concept. From there, One Oak expanded thoughtfully.
The team developed three separately managed account strategies:
As of September 30, 2025, One Oak Capital Management oversees $351 million in assets under management. The firm employs 14professionals, including 11 investment specialists whose sole focus is uncovering opportunity and managing risk.
One Oak operates intentionally as a boutique firm. Unlike large institutions which are often constrained by layers of approval, rigid mandates, and slow decision-making, One Oak is designed to move quickly and decisively.
The firm focuses on investment-grade municipal and corporate bonds, employing disciplined, laddered strategies aimed at delivering tax-advantaged income and total return. Every portfolio is aligned with clients' long-term objectives. The firm avoids chasing short-term gains that may introduce undue risk, instead building portfolios structured to perform across market cycles.
One OakCapital Management differentiates itself by exploiting structural inefficiencies and relative value opportunities within the municipal bond market.
We have observed that many investment managers are constrained by operational inefficiencies that can delay execution and cause missed opportunities. One Oak maintains ready-to-deploy capital across portfolios, allowing the team to act immediately when attractive opportunities arise.
Municipal bonds trade over the counter, where pricing transparency is limited and information is unevenly distributed.These market characteristics create inefficiencies that OneOak is particularly well positioned to identify and capitalize on—often more effectively than larger, less agile competitors.
Every investment is evaluated on a risk-adjusted basis, with the aim of providing clients access to compelling opportunities without assuming excessive risk.
In investing, results matter - independent validation matters even more.
One Oak's separately managed account strategies launched on August 1, 2020. Since inception, they have earned multiple awards and top industry ratings. (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 to investing. Zephyr/PSN is an asset and wealth management software marketed by Inform a (LSE: INF). PSN is a database of Separately Managed Accounts managed by Zephyr. One Oak does not compensate Zephyr for inclusion in the PSN database, nor does it compensate Zephyr for consideration for, or awarding of, the PSN Top Gun designation. The Morningstar Rating forFunds, often called the Star Rating, is a data-driven rating that measures the past performance of a fund in comparison to peers. One Oak has purchased the Morningstar Basics Package, which grants One Oak the permission to feature itsMorningstar Rating in marketing materials. This purchase, renewed on an annual basis, has a value of $6,885.06)
These accolades are awarded by independent third parties that objectively compare performance against hundreds of competing municipal bond strategies. One Oak has consistently ranked among the top tier.
Investment management is fundamentally a people business—strategy sets the course, but we believe that it is execution which determines outcomes.
Stephen DiTursi,Founder, CEO, and CIO, brings nearly 30 years of experience in bond investing, portfolio construction, trading, and risk management. Prior to founding OneOak, he was Head of Fixed Income Trading and Sales at Stone & Youngberg and a member of its operating committee. Earlier roles included Head of TaxableFixed Income at JVB Financial Group, leadership positions at Morgan Keegan& Company and Keefe Bruyette & Woods, and serving as Head of TaxableFixed Income and a board member at Gruntal & Co.
Neil Crabb, SeniorPortfolio Manager, leads portfolio construction and risk management for the firm's hedged municipal strategies. He joined One Oak in 2017 after serving asSenior Vice President at Hilltop Securities, where he helped manage municipal portfolios for institutional and high-net-worth clients. A U.S. Marine Corps combat veteran who served in Operation Desert Storm, Neil brings discipline and focus to his investment approach.
Joanne Costantini, CFO and Chief Compliance Officer, oversees regulatory relationships, compliance, client onboarding, reporting, and operational infrastructure. She joined OneOak in 2015 to enhance efficiency across business and client operations. Her prior experience includes senior roles at THB Asset Management, Armstrong ShawAssociates, and SS&C Technologies. She holds a Bachelor of Arts degree fromIona College.
James Kim, Senior Portfolio Manager, previously served as CIO and Chairman of the InvestmentCommittee at Alternative Capital Advisers, where he conducted investment and operational due diligence on hedge funds and niche strategies. Earlier in his career, he was a Senior Research Analyst at Terrapin Asset Management and began investment banking at Chardan Capital Markets and Deutsche Bank. He is a CAIA charter holder and graduated magna cum laude from Rutgers Business School.
Keith Cronin, PortfolioManager, oversees corporate bond portfolios, including security selection and hedging. He joined One Oak in 2014 after serving as Director of Fixed Income atOppenheimer & Co. and as a Fixed Income Trader at JVB Financial. His career began at HSBC Private Bank.
Michael DiTursi, Portfolio Manager, actively manages municipal and corporate bond portfolios, focusing on opportunity identification, economic analysis, and interest rate trends. His experience includes roles on interest rate derivatives desks at Sumitomo Mitsui Banking Corporation and Morgan Stanley.
Joseph H. Marren, Head of Research and Portfolio Manager, leads firm-wide research across asset classes. He previously served as President, CEO, and CIO of KStone Partners LLCand spent 23 years in senior M&A business development roles at Citigroup, Credit Suisse, DLJ, and Sagent Advisors.
This collective experience spans multiple market cycles and equips the team to navigate periods of volatility with confidence. (Disclaimer: This information is for illustration and discussion purposes only. One Oak makes no assertion about any particular comparable firm providing or any employee's previous employment / academic experience guaranteeing any particular knowledge, skill or service level)
One OakCapital Management seeks to actively capture value in investment-grade municipal and corporate bond markets through disciplined portfolio construction and risk management.
The EnhancedMunicipal Portfolio employs a laddered, actively managed approach designed to capitalize on the fragmented and idiosyncratic nature of the municipal market. Portfolios consist of diversified, high-quality bonds appropriate for investors seeking tax-advantaged income, with careful attention to risk control.
OneOak offers a range of innovative fixed income strategies across market segments and investment styles.
Risk management is embedded in every investment decision—from security selection and position sizing to duration management.
Portfolios are composed of high-credit-quality, investment-grade securities designed to protect capital.Laddered maturity structures help manage interest rate risk while providing consistent liquidity.
(Disclaimer: There can be no assurance that risk mitigation efforts will be successful or that the risk of loss can be prevented by such efforts.)
One Oak's strategies emphasize low volatility and consistent performance rather than short-term speculation.
The Enhanced Short-Duration Municipal Portfolio is tailored for investors seeking stability, lower duration exposure, and attractive tax-advantaged yields.
OneOak Capital Management is a New York-based, SEC-registered investment adviser serving qualified and accredited investors who demand disciplined management and reliable results. (Disclaimer: One Oak is a registered investment adviser with the United States Securities and Exchange Commission(SEC). This does not imply any level of skill, training or approval of written marketing material by the SEC.)
OneOak Capital Management combines boutique agility with institutional expertise. The firm moves quickly to seize opportunity, manages risk with discipline, and delivers tax-advantaged income solutions.
Backed by Steve DiTursi's more than 40 years of fixed income experience and a dedicated investment team, One Oak offers active management built for discerning investors.
Since 2013, the firm has evolved and strengthened its strategies and now manages $351 million as of September 30th, 2025.
