Long-Term Investment Growth for Nonprofits: Building a Portfolio That Outlasts Your Board

Why Do Nonprofit Portfolios Underperform When the Board Drives Investment Decisions?

I have seen this pattern dozens of times. A new board member joins, reviews the portfolio, and suggests changes based on their personal investment philosophy. Maybe they are a retired executive who wants more equities. Maybe they work in private equity and think alternatives belong in the mix. Maybe they just read an article about ESG investing and want to overhaul the allocation.

The board discusses it, the changes get made, and the portfolio reflects that particular group's preferences. Two years later, half the board rotates off. A new finance committee chair takes over. The cycle repeats. Over a decade, the portfolio has been whipsawed through three or four different investment approaches, incurring transaction costs, triggering unintended tax events, and never fully capturing the returns of any single strategy.

The fix is not better board members. It is better documentation. An investment policy statement (IPS) that codifies the organization's investment philosophy, constraints, and governance structure creates continuity that individual board members cannot.

What Should a Nonprofit Investment Policy Statement Include?

An IPS is the single most important governance document for any nonprofit with invested assets. It is not a suggestion or a set of guidelines. It is a binding framework that the board adopts and that every future finance committee inherits.

When I build an IPS with a nonprofit client, we cover:

• Purpose and scope. What assets does this policy cover? Operating reserves, endowment, restricted funds? Each pool may have different objectives and constraints.
• Investment objectives. State these in measurable terms. "Grow the portfolio" is not an objective. "Achieve a total return of CPI + 5% over rolling 10-year periods" is. The objective drives every downstream decision.
• Risk tolerance. Define what level of short-term loss the organization can absorb without disrupting operations. I typically express this as a maximum drawdown threshold: "The portfolio should be structured to limit expected losses to no more than 15% in any 12-month period."
• Asset allocation targets and ranges. Specify target allocations to each asset class (U.S. equity, international equity, fixed income, alternatives) and acceptable ranges. For example: U.S. equity target 40%, range 30% to 50%. The ranges give the investment manager flexibility without allowing dramatic shifts.
• Rebalancing policy. When allocations drift outside the specified ranges, the policy should prescribe how and when to rebalance. Calendar-based (quarterly) or threshold-based (when any asset class drifts more than 5% from target) are the two common approaches.
• Spending policy. How much can the organization draw from invested assets each year? This is the bridge between the portfolio and the mission, and I will address it in detail below.
• Investment manager selection and monitoring criteria. Define what you expect from your advisor or investment manager, how you will evaluate performance, and when you would consider making a change.
• Prohibited investments. Many nonprofits exclude certain sectors (tobacco, firearms) or investment types (speculative derivatives, concentrated single-stock positions). State these restrictions explicitly.

What Asset Allocation Should a Nonprofit Use for a Perpetual Portfolio?

Unlike a retiree drawing down a portfolio over 30 years, many nonprofits have a perpetual time horizon. The organization intends to exist indefinitely, which means the investment portfolio must grow enough to support spending, keep pace with inflation, and cover investment costs, all without depleting the corpus.

This perpetual horizon actually argues for a more growth-oriented allocation than many boards realize. A common mistake I see is nonprofit boards investing too conservatively because they equate the organization's mission-critical nature with low risk tolerance. But for a portfolio you never plan to spend down completely, the biggest risk is not short-term volatility. It is failing to keep pace with inflation over decades.

A typical allocation for a nonprofit with a perpetual horizon and a 4% to 5% annual spending rate might look like:

• U.S. equities: 35% to 45%
• International equities: 15% to 20%
• Fixed income: 25% to 35%
• Alternatives (real assets, diversified strategies): 5% to 15%

The exact split depends on the organization's spending needs, cash flow pattern, and tolerance for interim volatility. But the principle holds: a perpetual portfolio needs enough growth to outpace spending plus inflation, which typically requires meaningful equity exposure.

How Do You Set the Right Spending Policy for a Nonprofit Portfolio?

The spending policy determines how much the organization draws from invested assets each year. Get this wrong, and you either starve the mission by spending too little or deplete the portfolio by spending too much.

The most widely used approach is a percentage of a trailing average market value. For example, "The organization will spend 4.5% of the trailing 12-quarter average portfolio value." Using a trailing average smooths out market volatility, so a bad year in the market does not force an immediate and drastic cut to programs.

The 4% to 5% range is where most nonprofits land. Go much above 5%, and you are likely eroding the real value of the portfolio over time. Go much below 4%, and you may be hoarding assets at the expense of the mission you exist to serve.

I also recommend building in a floor and ceiling on the annual spending amount. For example: "Annual spending will be no less than 90% and no more than 110% of the prior year's spending, regardless of the formula result." This prevents both the budget shock of a sudden market decline and the temptation to spend a windfall after a strong market year.

How Should a Nonprofit Board Govern Investment Decisions?

Clarity about decision-making authority prevents the "new board, new strategy" problem. Your IPS should specify:

• The board approves the IPS and any changes to it. Changes require a formal vote.
• The finance or investment committee reviews performance quarterly and recommends IPS amendments if needed.
• The investment advisor implements the strategy within the IPS guidelines without needing board approval for individual trades.
• Day-to-day investment decisions (security selection, rebalancing) are delegated to the advisor. Strategic decisions (asset allocation targets, spending policy) remain with the board.

This structure means a new board member with strong investment opinions still has a voice. They can propose amendments to the IPS through the proper governance channel. But they cannot unilaterally redirect the portfolio based on personal conviction or market timing instincts. The IPS is the guardrail.

When Should a Nonprofit Hire an Outside Investment Advisor?

Most nonprofits lack the internal expertise to manage a diversified investment portfolio. An outside investment advisor brings professional asset management, institutional-quality reporting, and an independent perspective that is not influenced by board politics.

When I work with nonprofit boards, I serve as a resource not just for investment management, but for investment governance. That means helping draft and maintain the IPS, presenting quarterly performance reviews to the board, fielding questions from new board members, and ensuring the strategy stays consistent through leadership transitions. If your organization is evaluating whether to bring on an advisor, I wrote a companion piece on what to ask before you hire or replace your investment advisor.

The right advisor for a nonprofit is one who understands that the job extends beyond picking investments. It includes educating the board, maintaining institutional memory, and serving as the continuity mechanism when everything else turns over. That is the approach I take with every nonprofit and institutional client I serve.