Making sense of OCIO in 2026
As investment portfolios become increasingly complex and governance demands intensify, asset owners are re-examining a fundamental question: how are investment decisions being made and managed?
Central to this reassessment is a structural lag between portfolio evolution and the frameworks designed to oversee them. In response, outsourced chief investment officer (OCIO) models have evolved from a specialist solution to a more mainstream, multi-disciplinary operating framework for institutional investors. By bringing together investment decision-making, implementation and oversight, OCIO models can help portfolios to remain aligned with organizational purpose, risk tolerance and governance capacity as market conditions change.
The growth of OCIO may reflect a broader shift away from product-centric investing towards more integrated, outcome-oriented solutions. We see this evolution being shaped by four key dynamics:
Governance constraints and portfolio complexity
Investment governance has arguably become materially more demanding as portfolios expand across public and private markets, liquid and illiquid strategies, overlays, liability hedging and sustainability objectives. At the same time, Boards and Investment Committees are being asked to exercise greater oversight, often with limited time and constrained internal resources.
OCIO models aim to address this by providing an integrated framework that combines strategic advice, portfolio construction, implementation – with alpha generation delivered via established investment managers and robust ongoing oversight. Rather than managing each component in isolation, decision-making is coordinated across the total portfolio, allowing organizations to navigate complexity more effectively, whilst accessing the return generating expertise of the global investment management community and seeking to optimize governance structures.
This integrated approach is relevant for a broad range of organizations, whether they are managing multiple asset pools, such as corporate or public pension plans, insurance balance sheets and endowments, foundations and charities who are focused on a combination of returns, income and alignment, where investment decisions in one area can have material implications for risk, liquidity and outcomes elsewhere.
A more tailored operating model
OCIO is not a binary choice between full outsourcing and full internal management. In our experience, large and sophisticated asset owners favor customized, modular arrangements that reflect their specific objectives and internal capabilities.
Some investors delegate full authority on a discretionary basis with a defined strategy and associated targets, while others retain strategic oversight and selectively outsource implementation or support in individual asset classes. In more complex cases, OCIO partnerships may also involve the transition of existing investment teams into a scaled operating platform, preserving client and portfolio specific knowledge while expanding capability.
We believe flexibility is central to a successful approach, with investment solutions designed around each client’s governance preferences, risk appetite and operating model. We recognize that organizational context can shape partnership requirements and investment outcomes as much as market conditions.
In practice, OCIOs need to serve as a partner to a client’s portfolio by forming an extension of a client’s investment team. The real value comes from bringing governance, advice and execution together supported by strong data, transparency, reporting and risk management. When those elements are properly aligned, with an organization that is built-for-purpose to bring these components together, it becomes possible to manage portfolios more effectively through change – adapting as objectives evolve, governance needs shift and market conditions impact and become more complex.
Global Commercial Leader, Mercer
Private markets integration across the total portfolio
In our view, private markets exposure is now a core feature of long-term portfolios across pensions, insurers, wealth managers and family offices. The challenge, however, has shifted from access to integration, helping ensure that private assets are incorporated thoughtfully alongside liquid strategies.
This therefore requires careful attention to pacing, liquidity management, cash-flow forecasting, risk aggregation and reporting. For some clients, it also involves managing legacy private market portfolios that are no longer aligned with their objectives, including secondary sales or structured run-off strategies.
An effective OCIO framework supports both the construction and, where necessary, the restructuring of private market exposures, considered within the context of the total portfolio.
Data, transparency and informed decision-making
Effective investment governance increasingly depends on timely, high-quality information, as asset owners seek real-time insight into portfolio exposures, risks and outcomes across asset classes. In response, we’ve made significant investment in data, analytics and reporting capabilities that enable clients to view their portfolios at multiple levels – from security-level detail to aggregated assessments of risk, liquidity and performance. It is this depth of insight that supports more confident decision-making, particularly during periods of market stress, while also strengthening communication with boards, regulators and other stakeholders.
As technology continues to evolve, the ability to translate data into actionable insight may remain a defining feature of effective OCIO partnerships.