Why avoiding large losses matters to long-term compounding

Endowments are often evaluated by the return they earn in a given year. But annual return alone does not determine whether a portfolio will successfully support an institution over decades. The sequence of returns—and especially the depth of losses—can materially affect how much capital remains available to compound and fund the mission.

Compounding is asymmetric

A portfolio that loses 10% must subsequently earn approximately 11% to recover. A 20% loss requires a 25% gain. A 40% decline requires a gain of roughly 67% merely to return to its starting value. The deeper the loss, the more difficult the recovery becomes.

For an endowment that is also making regular distributions, the challenge is greater. Spending during a downturn removes capital at depressed values, leaving fewer assets available to participate in the recovery. This is why the magnitude and timing of losses can matter as much as average return.

Protecting capital during significant market declines is one of the most important drivers of long-term investment success.

Volatility is not the only risk

Volatility measures how much returns fluctuate. It is useful, but it does not fully capture the risks faced by a charitable institution. The more consequential risk is that a portfolio suffers a loss large enough to impair spending, force changes to programs, or permanently reduce the capital base.

For mission-driven organizations, this risk is operational as well as financial. Market stress often coincides with greater demand for grants or services. A portfolio that requires the institution to reduce spending precisely when beneficiaries need it most has failed an important part of its purpose.

Risk management should be embedded in portfolio construction

Downside protection is not a single trade or temporary overlay. It begins with the strategic allocation: how much equity risk the institution can sustain, how fixed income functions within the portfolio, whether exposures are genuinely diversified, and how liquidity is matched to expected withdrawals.

It also requires discipline. A portfolio should participate meaningfully when markets rise, but it need not capture every increment of upside to produce strong long-term results. Avoiding a portion of major declines can leave substantially more capital positioned for the next phase of recovery.

A long-term orientation does not mean remaining static

Long-term investors should avoid reacting to every market movement. At the same time, discipline should not be confused with passivity. Valuations, interest rates, inflation, correlations, and geopolitical risks change. Thoughtful portfolio management considers those conditions while remaining anchored to the institution's objectives.

The relevant outcome is mission-adjusted return

The best portfolio is not necessarily the one with the highest return in the strongest market. It is the portfolio that gives the institution the greatest probability of meeting spending needs, preserving purchasing power, and sustaining its work over time.

That shifts the discussion from “Did we beat the market this year?” to more useful questions: Did the portfolio deliver the return required by the spending policy? Did it maintain sufficient liquidity? Did it protect capital during stress? Did the board understand why the portfolio behaved as it did?

Resilient compounding is built from the interaction of return, risk, liquidity, spending, and governance. Treating loss avoidance as part of the return objective—not as a separate concern—creates a stronger foundation for long-term stewardship.