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What past market volatility has taught us about investor behaviour

Published: April 7, 2026 by Jennifer Armstrong

The current situation in the Middle East has led to market volatility. While it might seem new, similar movements have happened before, and looking at how these events have affected investor behaviour could be useful.

At the end of February 2026, the US and Israel launched strikes on Iran, which have further escalated. The uncertainty caused by the war has affected market confidence, leading to falling prices.

The Middle East is a large exporter of oil, and the war has resulted in prices rising, which is likely to affect businesses and consumers around the world. In addition, the Strait of Hormuz, an important waterway for trade, has been affected by the conflict, which may harm international supply chains.

These external factors may be affecting the value of your investments.

Market volatility refers to changes in the value of assets

In simple terms, market volatility refers to the value of assets changing. When markets are experiencing greater volatility, prices will rise or fall more sharply than usual. Volatility can be affected by many factors, such as geopolitical tensions, economic news, investor sentiment, and interest rates.

While volatility can seem concerning and unusual, it’s a normal part of investing. Indeed, even over the last 20 years, investors have experienced many periods of high volatility, including during the 2008 financial crisis and the Covid-19 pandemic.

If you look at the performance of market indices, you’ll see they are not straight lines. Prices naturally fluctuate, and there will be points where they shift sharply. While performance cannot be guaranteed, markets have historically recovered from dips over a long-term time frame.

In many cases, staying the course, rather than reacting to market movements, is the best course of action. However, high levels of volatility may trigger some investors to act in a way that doesn’t align with their long-term strategy.

Here are two types of investor behaviour to be mindful of during volatility.

1. Panic selling

When you’re worried about losing money, you might feel as though you need to react. So, investors might be tempted to panic sell portions of their portfolio amid market volatility. As mentioned above, markets have recovered from downturns in the past, and by panic selling, investors could turn paper losses into real ones.

There might be times when selling assets and adjusting your strategy is appropriate. However, these decisions shouldn’t be driven by emotions, like panic. Instead, assessing your personal goals and circumstances could help identify where you might make changes.

2. Following the crowd

When things seem uncertain, it can feel comforting to do what other people are doing. This can lead to an investor mentality of following the crowd. It might feel comforting, but it could also lead to inappropriate decisions.

While an investor might make a decision that’s right for them, it could be inappropriate for you because you have very different circumstances or goals.

So, if you feel tempted to alter your investments, it may be worthwhile assessing what’s driving the decision. You might be influenced by the actions of someone you know or by reading news articles that suggest other investors are reacting to market volatility.

We can answer your investment questions

If you have questions about your investment portfolio and how the current situation might affect you, we can help. Please get in touch to speak to one of our team.

Please note: This article is for general information only and does not constitute advice. The information is aimed at individuals only.

All information is correct at the time of writing and is subject to change in the future.

The value of your investments (and any income from them) can go down as well as up and you may not get back the full amount you invested. Past performance is not a reliable indicator of future performance.

Investments should be considered over the longer term and should fit in with your overall attitude to risk and financial circumstances.


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