What’s the difference between active investing and passive investing?

September 26, 2025

Imagine you’re planning a long road trip.

You could hire a professional driver who knows all the shortcuts, monitors the traffic reports and changes the route based on the current road conditions. Or, you could just follow the map and accept that while you might hit some traffic, you’ll get there in the end.

The choice is similar to one of the biggest decisions you’ll face as an investor… should you pursue an active or a passive investment strategy?

Both types of investing have their place in building wealth for retirement. Neither approach is inherently right or wrong. Much like choosing between a professional driver or the straightforward motorway route, it depends on your preferences, budget and journey.

So, the question isn’t which strategy is better, but which approach might work better for your specific circumstances, risk tolerance and retirement goals.

Understanding the fundamental differences between active and passive investing will help you make an informed decision, and that’s what this blog is about.  

What is active investing?

Active investing is a hands-on approach where the fund manager or investor researches, analyses and selects specific investments with the aim of outperforming the market. Rather than accepting average market returns, active investors try to identify opportunities others have missed and achieve superior results through their skill, research and timing.

In practice, this means most active fund managers spend their days analysing company financials, meeting with business leaders, assessing market trends and making calculated decisions about what to buy, sell or avoid. They might spot an undervalued company before the broader market recognises its potential, or move money out of a sector they believe is heading for trouble.

The goal is straightforward, to beat the performance of a relevant benchmark index, such as the FTSE 100. If the index returns 8% in a year, an active fund manager might aim to deliver perhaps 10% or more, to justify their approach and fees.

Active investing takes many forms. Stock picking involves selecting individual companies expected to outperform. Timing the market is all about moving in and out of investments based on market conditions. And rotating sectors involves shifting between industries based on economic cycles.

Some active fund managers and investors focus on growth stocks, others on undervalued opportunities. Many blend different approaches.

These strategies are typically available to the average investor through actively managed funds, where your money joins that of other investors under professional fund management. Alternatively, if you’re a confident, experienced and knowledgeable investor, you might build your own portfolio of selected stocks, bonds and other investments.

What is passive investing?

Passive investing takes the opposite approach.

It aims to match market returns rather than beat them. Instead of trying to pick all the winners, passive investors buy a representative sample of the entire market or a specific segment, accepting that they’ll receive whatever returns that market delivers, no more, no less.

The mechanics are simple. A passive fund tracking the FTSE 100 owns shares in all 100 companies in that index, weighted by their size. So, if one company represents 4% of the index value, it makes up 4% of the fund. There’s no analysis of whether that individual company is a good investment. If it’s in the index, it’s in the fund.

The passive approach works because the markets, over time, have historically delivered positive returns. By capturing the returns of the entire market, passive investors benefit from its overall growth without needing to identify which specific companies will drive it.

Index funds and exchange-traded funds (ETFs) are the primary vehicles for passive investing. Both track specific indices, from broad markets like the FTSE All-Share to narrow sectors like renewable energy companies. ETFs trade on stock exchanges like individual shares, while index funds are bought and sold directly from the fund company.

The beauty lies in the simplicity. Once you’ve chosen an appropriate index to track, there’s little else to do. The fund automatically adjusts as companies enter or leave the index, maintaining your market exposure without any action required from you.

The benefits of active investing

Active investing offers the tantalising possibility of beating the market.

Skilled fund managers and investors can potentially deliver returns that more than justify their higher fees, particularly in inefficient markets where research and expertise can create a genuine advantage. For example, during the 2008 financial crisis, some active managers protected capital by moving to defensive positions while index funds fell with the market.

Flexibility is another key advantage. Active fund managers can avoid overvalued sectors, reduce exposure during uncertain times or concentrate on their best ideas. They can also incorporate their ethical considerations and avoid certain industries, which is virtually impossible to achieve with pure index tracking.

However, there are some drawbacks. The harsh reality is that most active managers fail to beat their benchmarks consistently, especially after accounting for their fees, which tend to be higher. Successful active investing also needs continuous research and emotional discipline during market volatility.

The benefits of passive investing

The lower cost of passive investing is perhaps the most significant benefit.

The simplicity also appeals to many investors. There’s minimal research required, no decisions about when to buy or sell, and no second-guessing whether you’ve made the right choice. Owning the entire market means you’re never overly exposed to any single company’s failure.

However, by definition, you’ll never outperform the market with passive investing. During bubbles, you’re forced to buy overvalued stocks simply because they’re in the index. When markets fall, you experience the full decline with no defensive positioning.

You’ll also have less control over what you own. If you have concerns about certain companies or sectors within a market, tough. If they’re in the index, they’re in your portfolio, which can be frustrating when indices become heavily concentrated in a few large companies.

Historical performance

Studies consistently show that over most 10-15-year periods, roughly 80% to 90% of active funds underperform their benchmark indices after fees.

Even successful managers struggle with consistency. A manager might outperform the market for several years, attracting substantial investor money, only to underperform at that point because their funds grow too large to exploit the inefficiencies they once targeted.

And with millions of intelligent, well-resourced investors analysing every opportunity, finding overlooked value is becoming more difficult. The prices of most securities already reflect all available information, which leaves little room for consistent outperformance.

However, certain market conditions have historically favoured active management. During significant market transitions, skilled active fund managers have sometimes added meaningful value to their clients by investing in smaller companies and less efficient international markets.

Making your decision

There’s no universal answer to whether active or passive investing is ‘better’ for you.

Your optimal approach will depend entirely on your circumstances, goals and preferences. What matters most is making an informed choice that’s aligned with your retirement planning needs.  

So, consider your comfort level around costs, complexity and control. If simplicity and lower fees appeal most, passive investing might be your best bet. If you have strong views about certain markets or enjoy the process of researching and hunting for the best opportunities, active investing might be worth exploring further.

The key is starting somewhere rather than endlessly analysing your options. You can always adjust your approach as you gain confidence and experience. Regular reviews with your financial adviser will ensure your strategy remains appropriate as you progress.

How can Glenrose Financial Planners help?

Active and passive investing are fundamentally different philosophies. Both have merit, depending on your circumstances. Many successful investors use a combination, balancing the reliability of passive investing with selective active strategies where they see genuine opportunity. The key lies in understanding your needs, risk tolerance, and the time you can dedicate to managing your investments.

Professional financial advice can help you navigate this decision and create an investment strategy that gives you the best chance of achieving the retirement you deserve, and that’s where Glenrose comes in. We can help you develop and maintain an investment strategy tailored to your needs.

We also offer perspective and emotional support to help you stay disciplined and focused on your long-term financial goals. So, if you’re ready to explore your options and learn more about how we can support your investment journey, book an appointment today.

Please complete the form below

For a no-obligation initial consultation or your financial review online please complete the form below and we will get in touch to arrange further details.