Defensive Investing

Concept Analysis

Definition & Origins

Defensive investing is the philosophy of prioritizing the avoidance of large losses over the maximization of gains. It is grounded in the asymmetric mathematics of compounding: a 50% loss requires a 100% gain to recover. Not 50%. 100%. Large losses eliminate compounding capacity permanently — the investor who loses 50% and then gains 50% is still down 25% from the starting point and has consumed years of potential compounding time.

Oaktree's motto captures the philosophy in seven words: If we avoid the losers, the winners take care of themselves. This is not timidity dressed up as wisdom — it is a mathematically rigorous statement about how long-term wealth is created. Over multi-decade periods, the investor who maintains capital through bad markets consistently outperforms the investor who swings for maximum upside but periodically suffers catastrophic draws.

The idea's first full articulation came in Marks' 1990 memo "The Route to Performance," built around the record of a major Midwest pension plan whose director told him the plan had never had a year below the 47th percentile over fourteen years — nor, until 1990, a year above the 27th. Yet the plan ranked in the fourth percentile for the fourteen-year period as a whole. Never brilliant, never terrible, and the compounding did the rest. The lesson Marks drew: striving for top-decile years is unlikely to succeed; striving to do a little better than average every year, with highly superior relative results in bad times, is more likely to work. The memo predates Oaktree's founding by five years. When the firm was established in 1995, the principle was written into its identity: the most dependable way to generate the performance clients seek is by avoiding losing investments, not by finding the biggest winners.

Core Ideas

The mathematics of loss. -10% requires +11% to recover. -25% requires +33%. -50% requires +100%. -75% requires +300%. The asymmetry accelerates dramatically as losses deepen. The investors who best understand this asymmetry are almost always more defensive than the consensus — because the consensus focuses on upside and underweights the cost of large losses.

Defense is not about risk avoidance — it is about risk selection. Defensive investing does not mean holding only cash or government bonds. It means taking risks where the compensation is adequate and the downside scenarios are survivable, and declining risks where they are not. The determination of "adequate compensation" requires honest assessment of downside probabilities — the work that optimists systematically underweight.

The defense/offense balance shifts with the cycle. Marks' most important practical insight about defensive investing: the appropriate degree of defensiveness is not constant. It should increase as markets become expensive and optimistic, and decrease as markets become cheap and pessimistic. At the peak of a credit boom, defensive positioning is paramount — the expected value of aggressive risk-taking is poor. At the trough of a crisis, aggressive action is the defensive choice — expected losses are low and expected gains are high.

Defensive investors accept the certainty of appearing too cautious. The hardest part of defensive investing is psychological, not analytical. During bull markets, defensive portfolios underperform. Clients notice. Competitors outperform. The pressure to abandon discipline is intense. The investor who maintains defensive discipline through this period — accepting short-term relative underperformance — is the one who has capital to deploy when the cycle turns and the aggressive investors are licking their wounds.

Survival is the prerequisite for compounding. An investor who loses everything in a crisis — even if they performed brilliantly up until that point — cannot compound from zero. The discipline of defensive investing is, at its core, the discipline of ensuring that no single adverse scenario ends the game.

Defense and offense are calibrated against twin risks. Marks frames the daily dilemma as two risks that cannot both be eliminated: the risk of losing money and the risk of missing opportunity. Eliminate one entirely and you are fully exposed to the other. Every investor and institution must therefore settle on a normal balance between the two — and then, if skilled, adjust that balance as the environment changes. This is why defensive investing at Oaktree is never a fixed posture. It is a dial, not a switch.

The price of defense is paid in good times. Defensive positioning has a cost, and the bill comes due during bull markets, when caution lags aggression. Marks is explicit that Oaktree accepted years of relative underperformance in exchange for being positioned for the downturn. The return on that investment arrives later, in the crisis, when the defensive investor has smaller losses, fewer legacy problems to clean up, and capital available to buy what the aggressive are forced to sell.

Practical Application

Oaktree 2006-2007: As the credit bubble inflated, Oaktree reduced portfolio aggressiveness: shorter duration, higher credit quality, more covenant protection, less leverage in fund structures. The firm appeared cautious relative to competitors who were generating higher returns on aggressive positions. The defensive positioning meant Oaktree entered the crisis with capacity and discipline to invest — and did so aggressively in 2008-2009.

COVID 2020: Marks' initial COVID memos counseled caution (defense — capital preservation when uncertainty was maximal in February-March 2020). His subsequent memos shifted to offense (aggressive deployment in April-May 2020 as the Fed backstop reduced systemic risk). The defense/offense calibration was dynamic, not static.

Calibrating in real time (April 2020): In Calibrating, Marks laid out the reasoning as it happened. For years Oaktree's mantra had been move forward, but with caution — fully invested, but with even more than the usual caution — because the world struck him as a risky, low-return place. Once prices had collapsed, risk-taking had dried up, and prospective returns had turned from paltry to attractive, he concluded that defense should no longer be favored: previously cautious investors could move toward a more neutral position, or even toward offense. The adjustment he describes is gradual readjustment, not all-or-nothing switching at tops and bottoms.

Institutional context: Most institutional investors have formal benchmarks — they are evaluated against an index. This creates structural pressure to hold what the index holds, at similar weightings, regardless of valuation. Oaktree's ability to take genuinely defensive positions (moving to cash, reducing risk meaningfully below benchmark) is a structural advantage that most institutional managers do not have.

Common Misconceptions

Misconception 1: Defensive investing means low returns. Oaktree has generated top-quartile returns across multiple credit cycles while practicing defensive investing. The defense is not permanent — it shifts to offense at cycle troughs. The combination of preserved capital at peaks and aggressive deployment at troughs generates better long-term returns than the grab-everything approach.

Misconception 2: Defense is about predicting bad markets. Defensive investing does not require predicting when markets will fall. It requires recognizing when risk/reward has deteriorated (valuations high, optimism extreme) and reducing exposure accordingly — without knowing the timing of the reversal.

Misconception 3: Caution and superior returns are incompatible. The caricature says "can't lose" goes hand in hand with "can't win" — and Marks concedes the tension is real, citing his favorite fortune cookie: "The cautious seldom err or write great poetry." Too large a dose of caution in asset allocation can keep a portfolio from outperforming. But his resolution is not to abandon caution; it is to concentrate it where it pays. He argues the avoidance of losses and terrible years is more reliably achievable than repeated greatness, and thus risk control is the surer foundation for a superior long-term record. The boldness belongs in selecting strategies and managers with genuine edge; the caution belongs in how each position is underwritten.

Howard Marks' Own Words

Thought Evolution

Related Concepts

Key Memos

Mentioned In

Source: Chian.io — Howard Marks Knowledge Base