Level III Core · Portfolio Management for Institutional Investors

Endowments and Foundations Investment Policy (IPS) Explained

Updated 9 October 2026 · Fact-checked

An endowment or foundation IPS sets a return objective equal to spending plus expenses plus inflation, aiming to preserve real capital for future generations (intergenerational equity). You solve it by computing the required return, then judging risk, liquidity, time horizon, legal limits and unique needs from the facts given.

Understand Endowments and Foundations Investment Policy

An endowment holds donated assets to support an institution, such as a university or hospital, in perpetuity. A foundation is similar but usually gives grants to outside causes. Both have a very long, often perpetual, time horizon.

The core idea is intergenerational equity. Today's beneficiaries and future beneficiaries should receive the same real support. If you spend too much now, you shortchange the future. If you spend too little, you shortchange today. So the fund must at least keep the real value of its capital while paying out a steady spending amount.

This drives the return objective. The fund needs to earn enough to cover the spending rate, the cost of running the fund, and inflation. Many endowments also face higher inflation than the general price index, because their costs (salaries, research, facilities) can rise faster. Use the inflation measure the question gives you.

The spending rule links spending to the portfolio. A simple rule spends a fixed percentage of current value, which makes spending volatile. A rolling-average rule spends a percentage of the average value over several years, which smooths spending but lags the market. A geometric (hybrid) rule blends last year's spending, adjusted for inflation, with a percentage of current value. Smoother rules help the institution budget, but they can drift away from the portfolio's value.

Other constraints matter too. Liquidity needs are usually modest because spending is small relative to assets, so many endowments hold illiquid assets such as private equity and real assets (the endowment model). Legal and regulatory limits vary by jurisdiction and often require prudent investing and diversification, and may restrict spending of capital. Unique circumstances include donor restrictions, ESG or mission preferences, and governance capacity. Risk tolerance is judged from ability and willingness: a long horizon and stable donations raise ability, but dependence on the fund for the operating budget lowers it.

Key rules to remember

Nominal required return: (1 + spending rate + cost rate) × (1 + inflation) − 1; Use this geometric form when the exam asks for precision. It is the CFA curriculum's convention: the spending and cost rates are treated as real rates, so their sum is the real need, which you then compound with inflation.
Approximate required return: Spending rate + cost rate + inflation; Fine as a quick check. Say which version you used.
Real required return: Spending rate + cost rate; The return above inflation needed to preserve real capital. This holds because the spending and cost rates are treated as real, as in the nominal formula above.
Simple spending rule: Spending = spending rate × market value at start of period; Volatile spending that tracks the market.
Rolling-average rule: Spending = spending rate × average market value of last n periods; Smooths spending but lags market moves.
Geometric (hybrid) rule: Spending(t) = w × [Spending(t−1) × (1 + inflation)] + (1 − w) × [spending rate × MV(t−1)]; w is the smoothing weight on the inflation-adjusted prior spending. Use the weight given in the question.

How to solve Endowments and Foundations Investment Policy questions

Work through the IPS in order. Tie every conclusion to a fact in the case.

1Identify the client type (endowment or foundation), horizon and mission from the vignette.
2Extract the spending rate, cost rate, inflation measure and any donor or legal limits.
3Compute the required return and state whether it is nominal or real. Show the calculation.
4Assess ability and willingness to take risk separately, citing facts such as dependence on the fund, donation stability and board attitude.
5Set liquidity needs from spending, capital calls and any debt or commitments. Compare them with illiquid holdings.
6List legal, regulatory and unique constraints: prudence rules, donor restrictions, ESG or mission limits, governance resources.
7Check the spending rule against intergenerational equity, then conclude with a recommendation that answers the command word.

Quickest way: Required return in three lines

When to use it: When a question gives spending, cost and inflation and asks for the return objective or whether a policy is sustainable.

Add spending rate and cost rate to get the real need.
Compound with inflation: (1 + real need) × (1 + inflation) − 1.
Compare with the expected return of the proposed portfolio. If it is lower, real capital erodes and intergenerational equity fails.

Common mistakes in Endowments and Foundations Investment Policy

Leaving inflation out of the return objective.
Students see spending as the only outflow.
Fix: Always add inflation, and add fund costs. Preserving real capital is the goal.
Treating a high spending rate as a liquidity need.
Spending sounds like cash outflow.
Fix: Spending is usually small relative to assets. Liquidity needs come from actual cash demands such as capital calls, debt or large grants.
Confusing ability and willingness to take risk.
Both words sound like tolerance.
Fix: Ability rests on horizon, spending dependence and funding stability. Willingness reflects the board's attitude. State both and the overall conclusion.
Saying the rolling-average rule removes market risk.
Smoother spending looks safer.
Fix: It only smooths spending. It lags the market and can overspend after a fall.
Ignoring donor restrictions and legal limits.
Students focus on the numbers.
Fix: Scan the vignette for restricted gifts, prudence rules and mission or ESG limits and list them as constraints.
Giving a recommendation without justification.
Rushing under time pressure.
Fix: Add one clause that cites a case fact. Points are for the reason.

Worked examples

Example 1

A foundation spends 4.0% of assets each year, has investment costs of 0.5% and expects inflation of 2.5%. Calculate the required nominal return using the geometric form.

Show the solution

Real need = 4.0% + 0.5% = 4.5%.
Nominal = (1.045) × (1.025) − 1.
1.045 × 1.025 = 1.071125.
Subtract 1 to get 0.071125.

Answer: Required nominal return ≈ 7.11%.

Example 2

An endowment with market value ₹800 crore at the start of year 3 uses a rolling-average rule: spending = 5% × the average of the market values at the start of the last three years, including the current year-start value. Values at the start of years 1, 2 and 3 were ₹700 crore, ₹760 crore and ₹800 crore. Calculate year 3 spending and comment on it compared with a simple 5% rule.

Show the solution

The rule averages three year-start values, and the current year-3 value of ₹800 crore is one of them.
Average = (700 + 760 + 800) ÷ 3 = 2,260 ÷ 3 = 753.33.
Rolling-average spending = 5% × 753.33 = ₹37.67 crore.
Simple rule spending = 5% × 800 = ₹40.00 crore.
Difference = 40.00 − 37.67 = ₹2.33 crore lower.

Answer: Spending is about ₹37.67 crore, below the ₹40.00 crore of the simple rule. Because values rose over the three years, the rolling average lags the rising market, which smooths spending but reduces current payout. In a falling market it would do the opposite and spend more than the simple rule.

Exam tips

Answer the command word and show the required-return calculation line by line. A correct number alone earns full credit for a calculation, but working protects you if you slip.
Match the command word. If it says justify, include the case fact. If it says calculate, calculate and show your working.
Answer only the number of items asked for, in the order given. Extra answers are not scored.
Check which inflation measure and which cost rate the question specifies before computing.
Link every constraint to a case fact: horizon, donor restriction, spending need or governance capacity.

Endowments and Foundations Investment Policy: frequently asked questions

What is intergenerational equity for an endowment?

It means current and future beneficiaries should receive the same real support. The fund therefore aims to preserve the real value of capital while paying out a sustainable amount.

How do I calculate the required return for an endowment?

Add the spending rate and the cost rate, then combine with inflation. The geometric form is (1 + spending + costs) × (1 + inflation) − 1. The simple sum is a quick approximation.

Which spending rule is best?

No rule is best in every case. A simple rule tracks the market, a rolling average smooths spending, and a hybrid rule balances both. Choose the one that fits the institution's need for budget stability.

What is the endowment model of investing?

It is an approach that uses the long horizon and low liquidity needs to hold large allocations to equities and illiquid alternatives. It depends on strong governance and manager selection, and illiquidity can create problems in stress.