Total Portfolio Approach (TPA) Isn't For Everyone & That's Ok: When Simpler is Better

The CAIA Association has elevated the conversation around the Total Portfolio Approach (TPA) in institutional portfolio management. Over the last 3 years, CAIA’s research and publications (2 mini-books, implementation portal) have served to evangelize the approach and have sparked important discussions among Institutional Investors across the world. Many early adopters have shared their experiences demonstrating the power of this integrated framework.

Total Portfolio Approach is powerful for organizations equipped to execute it, but implementing it without the necessary preconditions can also strain limited capacity, create fiduciary risks and paradoxically distract from mission achievement for those who aren’t ready.

If you’re a board member, ED, or investment committee chair wondering whether TPA is right for your organization or you’re struggling to articulate why it might not be, this article provides the framework you need.

I map seven organizational profiles that should wait, resist, or skip TPA entirely, giving leaders the language to defend focused strategies that work better. This will help you to say “Not Us” or “Not Yet” if you need to.

The Institutional Investment Landscape

Looking across organizations like Yale-style Endowments, mid-sized community foundations, state pension funds or life insurance companies, you’ll find radically different investment strategies, each of which is perfectly rational given their distinct circumstances.

Yale and its peers pioneered the Endowment Model, which is characterized by heavy allocations to Alternative Investments like Private Equity, Venture Capital and Hedge Funds which could represent 60–70% of the portfolio. They can pursue this approach because they have perpetual time horizons, sophisticated investment staff and minimal liquidity needs. Harvard, Stanford, and MIT followed suit, and the results spoke for themselves: decades of out-performance that funded ambitious institutional growth.

Community Foundations operate with more traditional Strategic Asset Allocation (SAA) approach with ~60% public equities, 30% bonds and 10% Alts. It’s not that they don’t get the Yale strategy, but they simply lack the staff to diligence complex partnerships and can’t meet the high investment minimums or require predictable returns to fund 100s of donor-advised accounts. The classic 60/40 portfolio with annual rebalancing works great to serve their mission.

CalPERS-style state pension funds face an entirely different calculus with their approach driven by Liability-Driven Investing that must generate sufficient returns to meet future pension obligations to retired teachers, firefighters and civil servants. As plans mature and payouts increase, many shift towards bonds and FI that can duration-match their liabilities. They can’t afford Yale-style illiquidity even if the returns are attractive.

Life Insurance companies are in another league entirely. With regulatory capital requirements, the need to pay claims on short notice and duration-matching considerations, they hold predominantly conservative FI portfolios. A 15% allocation to equity is probably considered aggressive in that world.

Intentionality Drives Strategy

Each of these organizations has chosen an investment model that aligns with their time horizon, liquidity needs, risk tolerance, organizational capacity and regulatory environment. The sophisticated Family Office making direct VC investments isn’t better than the hospital Foundation with a 65/35 traditional portfolio. They’re simply playing different games with different rules.

Then Came The Total Portfolio Approach

Core Idea

What if these mission-driven organizations like foundations, endowments, impact investors stopped thinking about grant-making and investing as separate activities? What if they aligned all their resources like grants, program-related investments, mission-related investments and traditional endowment assets toward their mission?

The Total Portfolio Approach (TPA) is an evolution in institutional portfolio management that shifts the focus from managing individual asset-class sleeves to managing the entire balance sheet as one integrated portfolio.

Traditionally, sleeves operate as silos in equities, fixed income, or alternatives, each with its own benchmark and manager. In contrast, the TPA aligns all assets and liabilities around a single objective: maximizing total portfolio outcomes for a given level of risk, liquidity, and mission.

Under TPA, investment decisions, risk budgets, and rebalancing are made holistically, often supported by centralized overlays for factors like duration, currency, and liquidity. This approach demands richer, real-time data and governance that evaluates performance at the total-fund level rather than at individual sleeves.

The result is a more agile, outcome-driven investment framework that can adapt to changing market conditions and liquidity needs while reducing the inefficiencies created by rigid, sleeve-based structures.

The essence of the Total Portfolio Approach is not just about what you invest in—it’s about recognizing that every dollar you control, whether earmarked for grants or endowment growth, can and should advance your organizational purpose. Pioneered by foundations like GIC Singapore, CPP Investments | Investissements RPC, and New Zealand Superannuation Fund (NZSuper), TPA has been evangelized as the future of mission-driven capital deployment.

And for some organizations, it absolutely is.

Is It For Everyone, Though?

The TPA requires specific organizational preconditions such as financial capacity, governance sophistication, mission clarity and operational bandwidth, not to mention the technology changes required to stand up the analytics backbone to support it. Ergo, it isn’t a universal best practice, because some of these things are elements that otherwise excellent organizations simply don’t have.

This isn’t about whether TPA is a good idea in theory. It’s about identifying the organizations for which it’s just the wrong strategy in practice. Because choosing an investment approach that doesn’t fit your reality isn’t just about effectiveness—it can also be a distraction and divert limited resources away from what actually works.

So, let’s talk about when you might be better served to say “Not Us” or “Not Yet”.

Let’s Make Sure We’re Talking About The Same Thing

In many one-on-one conversations on this topic, I’ve heard experts talk about two distinct (but related) dimensions of TPA:

The Mission Dimension: Every dollar (i.e., grants, PRIs, MRIs, endowment, etc.) aligns to and advances purpose. This answers “what you invest in”.

The Management Dimension: Manage the entire balance sheet as one integrated portfolio with cross-sleeve overlays, total fund risk, liquidity and currency managed centrally. This answers “how you invest”.

While these dimensions often work together, they’re not identical. It’s totally possible to do mission-aligned investing inside sleeves. It’s also possible to run a total fund approach without a mission overlay.

This article is focused on the management dimension—i.e., what the CAIA Association defines as “one unified means of assessing risk and return of the whole portfolio.” There are 4 key aspects that characterize it:

Governance: Empowering CIOs with risk budgets rather than asset class targets.
Factor-based Analysis: for risk measurement and management.
Competition for Capital: Ensuring each investment earns its place in the total portfolio.
Organizational Culture: Collaborative teams focused on total fund returns.

When Simpler is Better: Who Should Wait or Skip TPA

Profile 1: Mandate-bound Vehicles with Legally-Fixed Sleeves

Why SAA wins: You must report by sleeve. TPA’s cross-sleeve flexibility can violate legal or mandate constraints or be non-compliant with regulatory requirements.

Examples:

Prospectus/mandate Funds (‘40 Act / UCITS mutual funds, many SMAs) with tightly prescribed asset classes, tracking-error, and concentration limits.
Insurance general accounts under RBC/Solvency regimes with hard ALM and capital charges that force line-item constraints.
DB plans with strict LDI/glidepaths where the hedge sleeve must maintain a defined duration match.

What to do instead: Strengthen your SAA+ approach (or TPA-lite) with policy clarity, drift bands, and risk budgeting at the sleeve level with a light total-fund overlay where permitted (e.g., modest duration hedges) while respecting mandate constraints.

Profile 2: Ring-Fenced or Restricted Pools

Why SAA wins: If assets can’t be commingled or re-optimized across pools, TPA’s “single total portfolio” premise breaks down.

Examples:

Constitutional earmarks: Separate state buckets (e.g., rainy-day vs. pensions) for example Alaska Permanent Fund Corporation (two pools with separate governing statutes), Texas Permanent School Fund Corporation (has separate K-12 vs. higher ed buckets with different spending rules).
Donor-restricted Endowments: Cannot commingle or optimize restricted vs. unrestricted funds, which violates UPMIFA (Uniform Prudent Management of Institutional Funds Act) and donor intent.
Program-related investments (Foundations): Must demonstrate charitable purpose independent of financial return and can’t be optimized into a total portfolio risk budget.

What to do instead: Optimize within each ring-fence, but create shared governance, research, and risk infrastructure across pools to capture operational efficiency without violating legal separations. For pools >$1B, consider TPA-lite approaches within individual pools (e.g., factor-aware rebalancing, liquidity tiers, modest overlays) while maintaining bright-line segregation between restricted buckets.

Profile 3: Entities with Tight Tracking Error or Policy Index Discipline

Why SAA wins: TPA introduces dynamic TE at the total fund from dynamic factor overlays. Ergo, if TE tolerance is only ±50–100 bps, TPA becomes largely performative or constantly constrained.

Examples:

Pension Plans with statutory asset allocation: While very few plans have a constitutionally fixed “X/Y” asset split today, many operate under statutes or charters that prescribe permitted investments, caps, or sleeve-level accountability (and often restrict derivatives/overlays). These rules can make total-fund overlays and dynamic factor alignment impractical without revising statutes, IPS/IMAs, or board delegations.
Sovereign Wealth Funds with policy portfolio mandates: SWF funds with explicit tracking to policy benchmarks, for example Norway GPFG (70/30 + tight TE), even some Middle East SWFs.
Organizations where board reports and incentives are tied to sleeve benchmarks and CIO tactical latitude is minimal.

What to do instead: Focus on SAA+ with factor-aware rebalancing, auto-rebalancing, small duration/FX overlays sized to TE. Get smarter on implementation (transition management, tax-loss harvesting, security lending), and rigorous manager selection that targets uncorrelated alpha within each sleeve’s benchmark constraint. If seeking incremental flexibility, pursue a multi-year governance effort to widen drift bands to ±200–300 bps and secure board approval for narrowly-scoped liquid overlays (e.g., currency hedging, duration adjustment) that operate within a pre-approved risk budget and don’t disrupt sleeve accountability.

Excellence in execution matters more than framework sophistication.

Profile 4: Public Bodies with FOIA/Political and Sleeve Accountability

Why SAA wins: TPA dilutes accountability in ways politically-exposed boards cannot tolerate—i.e., central overlays (FX, duration, beta) change sleeve outcomes after the manager acts, complicating benchmarks and audit trails. Without IPS rewrites and incentive realignment, misalignment and pushback are likely.

Examples:

US State Pension Plans: Ill-intended or misinformed interpretation of TPA central overlays as “CIO playing with derivatives” causes political fallout. Board members face re-election pressure to maintain “simple” asset class accountability. CAIA Association President John L Bowman, CFA called out US pensions: “(TPA) …requires probably some attrition and change-up and tough decisions…it’s a hard thing to ask of a public pension CIO that might only be there 4 years”.
Municipal Plans with elected boards: TPA requires boards to steward a “risk budget” or “reference portfolio” instead of comprehensive asset allocation targets, and this is difficult to explain to media/legislators.
Audit trail complexity: from central overlays (FX, Duration, Equity Beta) which change sleeve outcomes make performance attribution harder.

What to do instead: For incremental dynamism, establish a small (5–10%) board-approved “tactical opportunities” sleeve with explicit guardrails and standalone reporting to provide flexibility without contaminating core sleeve accountability or requiring derivatives overlays.

Profile 5: Smaller Organizations without Scale or Complexity

Why SAA wins: A clear policy portfolio with disciplined rebalancing and manager selection will deliver 90% of the benefits without the operating burden of TPA.

Examples:

Below $500M: TPA requires overlay platforms, factor analysis tools and sophisticated data systems, systems integrations & risk analytics infra pipelines, compliance controls. Steady state costs could range from 10–20 bps annually.
Below $1B for complex strategies: With hedge funds, private debt or infra investments, complications in obtaining holdings data for returns-based factor analysis multiply.
RIA managing retail/HNW: Client contracts specify asset allocation; advisors can’t overlay without consent. Even if clients agree, explaining factor-based overlays to retail investors creates suitability, options approval, and communications obligations (e.g., FINRA 2111/2210/2360/2220/3260/4512 for dual-registrants).
Thinly-staffed organizations who don’t have an FTE strategist for TPA.

What to do instead:

Implement a transparent SAA using low-cost index funds.
Establish systematic rebalancing (bands + calendar) with audit-ready logs.
Optimize tax efficiency (asset location, tax-loss harvesting), fee minimization.
For RIA: Develop standardized model portfolios with plain-English labels and before/after exposure reports, updating models periodically rather than overlaying individual accounts.

Resource (optional): If you need help automating rebalancing, after-overlay reporting, or model governance, Grid Dynamics has experience in building these components. Happy to share a checklist/template on request.

Profile 6: Illiquid-heavy Allocators without Overlay Capability

Why SAA wins: TPA requires the ability to act on factor insights using futures/swaps/TRS and cross-sleeve netting to keep risk on target as commitments fund. If you can’t run overlays, you can’t do continual alignment. Illiquidity without offsetting liquid tools = paralyzed TPA.

Key considerations:

MSCI Inc. research indicates that liquidity risk in private assets “works on a different timescale than market risk,” with distributions grinding out over quarters and even years.
Over 40% privates without public market overlay book: Factor exposures cannot be dynamically managed when 40% is locked up with multi-year distribution schedules.
Over 50% privates: Distributions from recent vintages are at lowest since 2008 crisis, and this could spark a liquidity crisis under TPA’s dynamic approach.

What to do instead: SAA+ with pacing models, secondaries policy, pre-established secondaries policies, NAV facility guardrails, and explicit rebalancing buffers that acknowledge illiquidity constraints. As CAIA emphasizes, develop the tooling and data infrastructure to compare all marginal uses of capital, but accept that rebalancing happens on a different timescale than in liquid portfolios.

Profile 7: Governance and Cultural Readiness Gaps

Why SAA wins: TPA is premised on organizational alignment across governance, operations and culture. Without which, it creates friction, not value.

Examples:

Lacking derivatives expertise or board approval: Dynamic factor management is impossible without the ability to use futures, swaps, other overlay instruments.
Siloed compensation structures: If your equity team gets bonuses for beating the Russell 3000, they’ll fight central overlays that reduce their equity exposure.
Boards without risk-budget sophistication: If your board doesn’t understand VaR, factor decomp or reference portfolios, they’ll struggle to steward a risk budget as opposed to an asset allocation.
Multi-client commingled vehicles (OCIOs/Platforms): Can’t implement client-specific TPA overlays in pooled structures constrained by standard terms.

What to do instead: First address the underlying governance and cultural gaps. Educate boards on risk-budget frameworks. Align compensation with total-fund objectives. Build derivatives expertise through training or external partnerships. Only after these foundations are solid should you consider TPA implementation.

Technology and Analytics: The Enablement Layer

Organizations that do want to take the (very rewarding) journey to TPA will need the requisite tools and technology. CalSTRS’s experience offers instructive lessons: they estimated three years to fully implement their total fund management division.

Why three years? They had to:

Build a centralized data warehouse
Implement a factor risk system
Create overlay execution capability
Train teams on new tools
Run parallel systems during transition

Key Technology Capabilities

Investment Book of Record: Single source of truth for positions, cash, P&L across asset classes in real time. Ability to aggregate positions across assets across custodians, GPs, prime brokers, property managers and digital custodians.

Near Real-Time Data Aggregation: TPA requires the ability to make continuous, data-driven adjustments at the total portfolio level. This requires near real-time data across investments, advanced analytics, risk models, and decision-support tools.

Integrated Multi-Asset Class Risk Systems: Stream data into a single destination from your public equity system (BBG AIM/FactSet), your hedge fund system (custom spreadsheets) and other sources so you can cross-walk data for insights.

Factor-Based Analytics: Build out a common factor lens (equity, rates, credit, growth, FX) that works across:

Public equities (easy)
PE (hard with the smoothed valuations and stale marks)
HF (no holdings transparency)

Reporting and Visualization Layer: Ability for the CIO to get a real-time risk dashboard with board reporting to show total fund metrics and client/beneficiary transparency portals.

Cost and Timeline

The cost of this infrastructure typically ranges from 10–20 basis points annually, varying by organizational size and existing capabilities. For organizations considering TPA, the technology investment should be viewed as a multi-year build with parallel operations during transition.

Build vs. Buy

Organizations face a critical build-versus-buy decision for TPA infrastructure. Some large institutions (CalSTRS, CPP Investments) have built proprietary platforms, while others integrate a variety of vendor solutions and bespoke systems.

At Grid Dynamics we’ve worked to design and implement integrated platforms, typically on cloud infra like Google Cloud or Amazon Web Services (AWS). I’ll share a reference architecture and detailed cost breakdown (including that 10–20 bps estimate) to help organizations evaluate their technology roadmap realistically.

If you’re exploring TPA implementation: I’m happy to share frameworks, implementation checklists, or architecture diagrams that might help your planning. Just reach out directly.

The Pragmatic Path Forward

If you steward institutional capital, lean towards the approach that best serves your specific mission, constraints and capabilities and take up a disciplined move by defining fit and sequence:

Map your constraints: Legal mandates, capital restrictions, tracking error commitments, political realities and liquidity needs.
Define your fit: Figure out if SAA, SAA+ (TPA-lite) or full-bore TPA works for your reality.
Execute superbly: If SAA serves your mission well, execute it with excellence. Disciplined execution of a simpler approach outperforms poor implementation of an advanced one.
Pilot, don’t proclaim: Test one overlay, one metric, one quarter. Learn before scaling.
Upgrade foundations methodically: Upgrade data infrastructure, risk systems, reporting capabilities, and governance frameworks before expanding scope.
Decide annually whether a broader TPA shift is warranted.

This isn’t anti-TPA. Quite the contrary, it’s pro-fitment. Sometimes, simpler is better.