One of the most difficult decisions in investing is not whether to be optimistic or pessimistic. It is knowing when a concern is serious enough to justify changing course.

The second quarter offered no shortage of reasons to worry. Developments in the Middle East raised the risk of broader geopolitical instability. Energy prices moved higher, reviving concerns that inflation could become more persistent. Bond yields remained sensitive to each new data point. Equity markets, having already endured a difficult period of volatility, were forced to absorb another round of uncertainty.

For many investors, the natural question was whether it still made sense to remain fully exposed. Would it be prudent to become more defensive? Should portfolios be adjusted before the risks became more visible? Would it be better to step aside and wait for clarity?

These are reasonable questions. They can also become costly if they drift from risk management into market timing.

Being Right Is Not Enough

Investors often assume that successful defensive positioning depends on a correct view of the world. If inflation rises, if growth slows, if oil prices spike or if geopolitical risks intensify, then reducing equity exposure should help. In practice, the connection is rarely that simple.

Markets do not respond only to events. They respond to expectations, positioning, valuation, sentiment and the range of possible outcomes that investors have already considered. A negative headline may already be reflected in prices. A troubling development may be less severe than feared. A market that initially sells off may recover quickly if investors conclude that the longer-term consequences are manageable.

This is why an investor can be broadly right about a risk and still fail to benefit from acting on it. The concern may be valid, but early. The analysis may be thoughtful, but already priced in. The event may unfold as expected, but the market’s reaction may be different.

A recent trading experiment, discussed in The Economist’s June 23, 2026, article “Why macro trading is hard,” illustrated this point well. Participants were shown tomorrow’s front page of The Wall Street Journal, with market prices removed, and were asked to trade based on news that other investors had not yet seen. Even with that unusual advantage, many struggled to translate knowledge of the next day’s headlines into profitable decisions.

That result is humbling, but it should not be surprising. Knowing the news is not the same as knowing how markets will interpret it.

When Caution Becomes Market Timing

There is nothing wrong with caution. A portfolio should reflect an investor’s financial circumstances, liquidity needs, objectives and time horizon. If any of these change, then the asset mix may need to change as well.

But that is different from changing the asset mix because the headlines feel uncomfortable.

For long-term investors, this distinction matters. A decision to reduce equity exposure may sound prudent. It may even feel responsible. Yet, if the investor’s personal situation has not changed and if the portfolio was originally built to withstand periods of volatility, the decision often becomes less about planning and more about prediction.

That does not make the instinct irrational. Volatility is uncomfortable. Geopolitical conflict is serious. Inflation can erode purchasing power. Markets can fall further than expected. No investor should dismiss these risks lightly.

The question is not whether risks exist. They always do. The question is whether one has a repeatable ability to identify the right moment to step out of the market and, just as importantly, the right moment to step back in.

That second decision is often harder than the first.

The Hidden Cost of Defence

Moving defensively can feel like a decision that reduces risk. Sometimes it does. However, it also introduces a new risk: the risk of missing the recovery.

Market recoveries often begin before the news has improved. They can occur while economic data is still weak, while the headlines remain unsettling, and while investors are still waiting for confirmation that the worst has passed. By the time the environment feels comfortable again, prices may have already moved.

This is the hidden cost of being defensive. It is not always visible immediately. At first, holding more cash or reducing equity exposure can feel reassuring. The portfolio may fluctuate less. The investor may feel more in control.

But over time, the cost can be meaningful if the defensive position interrupts long-term compounding. Missing even part of a recovery can leave an investor worse off than if they had simply endured the discomfort. This is especially true when the original investment plan was designed around a long-time horizon.

Over long periods, markets have generally rewarded patience, but rarely on a schedule that investors would have chosen. That is why the time horizon matters so much. An investor who needs capital in the near term should not be forced to rely on favourable markets. But an investor with a long horizon should be careful about allowing short-term uncertainty to override a long-term plan.

The Better Question

In periods of stress, the question should not be: “What do I think the market will do next?”

A better question is: “Has anything changed in my own situation that requires a different asset mix?” Has the time horizon shortened? Have spending needs changed? Has liquidity become more important? Has the ability or willingness to tolerate volatility meaningfully declined? If the answer is yes, a portfolio review is appropriate. If the answer is no, the more disciplined response may be to stay invested.

This does not mean ignoring the risks. It means separating portfolio construction from prediction. A well-designed asset mix should already acknowledge that markets will periodically face shocks, recessions, inflation scares, policy errors, geopolitical events and emotional sell-offs. These are not exceptions to the investment experience. They are part of it.

The goal is not to build a portfolio that feels comfortable in every quarter. The goal is to build one that can support the investor’s objectives across a wide range of conditions, including periods when the outlook is unclear.

Staying Invested Is Not Passive

At Pembroke, we believe discipline is most valuable when it is hardest to maintain. Our focus remains on owning high-quality businesses with strong financial characteristics, capable management teams and the ability to adapt through changing conditions. These businesses are not immune to market volatility. Their share prices can decline when uncertainty rises. But over time, business quality, cash generation and thoughtful capital allocation remain important foundations for long-term value creation.

For clients, the same principle applies at the portfolio level. Staying invested does not mean doing nothing because there is nothing to consider. It means revisiting the plan, confirming that it still fits the investor’s objectives, and resisting the temptation to make broad changes based on short-term market fears.

There will always be reasons to be defensive. Some will prove justified. However, the challenge is that successful investing requires more than identifying risks. It requires sizing them properly, judging what is already reflected in prices, and acting only when the evidence is strong enough to justify a change.

For long-term investors, the cost of being defensive is often not being wrong about the risk. It is being too early, too confident or unable to re-enter before markets recover.

When personal circumstances change, portfolios should change with them. When they have not changed, the burden of proof should be higher. In those moments, the most valuable decision may be to resist the impulse to outguess the market and remain committed to the plan that was built before the headlines arrived.