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Why DIY investors lose 3 per cent a year and what you can do about it

Every so often you will see a study claiming that DIY investors underperform the market by roughly 3 per cent per year. These reports surface regularly, and the message is always the same.
“You are losing money by doing it yourself. Give it to the professionals.”

In most of the wealth management industry, this statistic is used as a sales tool. It is designed to convince you that investing alone is dangerous and that the only sensible solution is to outsource everything to a fund manager, wealth manager, or investment service.

But there is another way to interpret the data.
A way that is rarely discussed.

If the evidence says that DIY investors lose around 3 per cent per year, then the real question is not, “Should I hand my money over to someone else?”
The real question is, “Why do DIY investors lose 3 per cent a year in the first place?”

Because once you understand that, the path forward becomes very different.


It is not the investments that cause the loss, it is the behaviour

Most underperformance does not come from choosing the wrong funds.
It comes from very human habits:

  • reacting to noise

  • chasing what has just gone up

  • selling after a fall

  • buying after a rise

  • switching strategies too often

  • misunderstanding risk

  • confusing comfort with clarity

In other words, most of the loss comes from behaviour, not lack of intelligence. And behaviour can be changed.


The industry solution is dependence. Our solution is capability.

The traditional industry message is simple.
“Your behaviour is the problem, so give us your money and we will stop you doing silly things.”

It is tidy, it is convenient, and it keeps the industry in control.

But it is not the only way.
And for many people, it is not the best way.

Our approach is different.

We believe that if your behaviour is the main source of underperformance, then the answer is not to outsource control, it is to strengthen your capability. To help you understand your decisions, think more clearly, and avoid the traps that lead to that 3 per cent loss.

When you remove the emotional mistakes, the performance gap closes.
When you understand risk, you stop reacting to headlines.
When you learn to ask better questions, you stop chasing last years returns.
When you understand what you own and why you own it, you stay the course.

The goal is not perfection. It is awareness.


The real possibility: becoming a better DIY investor

Imagine if the 3 per cent loss disappeared.
Imagine if you kept the market return, not the diluted version created by emotional decisions.

This is not fantasy.
It is what happens when people learn to think more clearly about their money.
The evidence is clear. The more disciplined the behaviour, the better the outcomes.

Financial wellness is not about finding the perfect product.
It is about removing the drag created by fear, noise, and reaction.

And that is not something you outsource.
It is something you learn.
It is something you practise.
It is something you own.


Welcome to The Wealth Coach

A place where the answer is not to surrender control, but to learn how to use it wisely.  Where the goal is not dependence,but clarity.  And where the 3 per cent you used to lose quietly returns to your future self instead.

Nic Round is a Chartered Financial Planner and Chartered Wealth Manager, authorised and regulated by the Financial Conduct Authority.

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