Investment Philosophy 101: When Do We Exit?

This post is an addendum to my earlier piece on Investment Philosophy 101: What Investment Means to Me. If you haven't read it, I'd encourage you to start there.

In my earlier piece, I wrote about why I believe in long-term, disciplined investing. The philosophy is straightforward: stay invested, weather the storms, and trust the data. The market rewards patience.

But a question I often get asked is this: if we believe in staying invested, when do we ever get out?

When do we ever get out?

It's a fair question. And it deserves a clear answer. Because having a philosophy is not just about knowing when to hold — it is also about knowing when, and why, to let go.

Here are the three and a half reasons I would divest from a fund.

1. We have achieved the goal

Every investment should have a purpose. Perhaps it is funding your child's university education in fifteen years. Perhaps it is building a retirement nest egg by 65. When that goal is achieved, there is no reason to remain in the fund for the sake of it.

Investing without a goal is like driving without a destination. You might cover a lot of ground, but you will not know when to stop. When the destination is reached, you park the car. That is not a failure. That is success.

2. The fund has grown too large in our portfolio (Rebalancing)

Imagine you invested in five funds, each taking up roughly 20% of your portfolio. Over time, one fund performs exceptionally well — and now it accounts for 35% of your portfolio. That sounds great, doesn't it? But here's the thing: it's actually a signal to trim.

This is what rebalancing means. It is not a vote of no confidence in the fund. In fact, it is quite the opposite. We are exiting precisely because the strategy is working. We are taking profits. We are adjusting the portfolio back to its intended shape.

Why does this matter? Because a portfolio that is too heavily weighted in one position is now exposed to more risk than we originally planned for. Rebalancing is an act of discipline and protection. We lock in gains and we manage risk — not because we fear the fund, but because we respect the plan.

3. Your risk appetite has changed

Life changes. And when life changes, so does our ability to take on risk. A young professional in their thirties may be comfortable watching a portfolio swing 30% in either direction. That same person at 58, two years away from retirement, may not be.

Risk appetite is not just a number on a form. It is a lived reality.

Risk appetite is not just a number on a form. It is a lived reality — shaped by your income, your health, your responsibilities, and your peace of mind. If the level of risk in a fund no longer matches where you are in life, it is entirely reasonable to exit. This is not fear. This is wisdom.

3.5 The fund mandate has changed

This is the half-reason, and it is often overlooked.

When you invest in a fund, you are investing in a strategy. You agreed to the terms of that strategy. But sometimes, funds change — their investment approach shifts, their manager changes direction, or they expand into areas that were never part of the original agreement.

If the fund you invested in is no longer doing what you signed up for, it is fair to reconsider.

You did not change. They did.

A Careful Word on the Other Reason

There is one more reason people divest, and I want to address it honestly — because it is both the most emotionally compelling, and the most dangerous.

The strategy no longer works

Sometimes, we feel that our strategy no longer works.

My investment thesis is to maximise global diversification, holding equities of companies in nearly every country in the world, regardless of size. Most of my clients' portfolios hold more than 8,000 companies globally. For such a strategy to "no longer work," it would mean that the global economy — in its entirety — has fundamentally broken down. That is a very, very high bar to clear.

The hard truth is this: there is no mathematical threshold that tells you a globally diversified strategy, or indeed any strategy, has stopped working. There is no clean data point. And so, any decision to divest on this basis is almost always driven more by emotion than by evidence. The fear of continued loss, the anxiety of uncertainty, the frustration of watching numbers fall — these are human responses, and they are deeply understandable. But they are not the same as a reasoned conclusion.

If you find yourself at this point, I encourage you to pause. Ask yourself honestly: has the strategy changed, or have your feelings changed? These are very different things.

What We Do Not Divest For: Poor Performance

This one needs to be said plainly.

We do not exit a fund simply because it is performing poorly.

Poor performance, at some point, will follow every strategy — no matter how sound, no matter how well-constructed, no matter how experienced the people behind it. This is not a flaw in the strategy. This is the nature of markets.

A good strategy is not defined by whether it works all the time. It is defined by whether it gives you the best possible chance of success over the long run. Short-term pain is not a verdict. It is a season.

If we divest every time a strategy underperforms, we will spend our lives chasing the last winner and abandoning every approach before it has the chance to prove itself. That is not investing. That is speculation dressed in investor's clothing.

That is speculation dressed in investor's clothing

The goal is not a strategy that never loses. The goal is a strategy worth trusting — one that, given time, patience, and discipline, delivers. And then we stay the course.

I write on topics related to financial habits and decisions. Do explore my other articles at https://www.williamseah.com/blog if the ideas resonate. Drop me an email at reach.william@gmail.com or text me at 9673 1523 if you'd like to chat over coffee or whisky.