The FTSE 100 has tanked 5% in 1 week. Here’s what I’d do now

Here’s why I think now could be a good time to buy a range of FTSE 100 (INDEXFTSE:UKX) shares.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

In the last week, the FTSE 100 has fallen by as much as 5% in what has included its biggest one-day fall in around three years.

Clearly, investors are becoming increasingly unsure about the prospects for the global economy during a period that includes significant risks, such as US political uncertainty and the global trade war.

While this may naturally cause many investors to determine that now is a good time to sell their holdings in order to avoid potential losses, the reality is that buying shares for the long term may be the most logical response to the FTSE 100’s recent decline.

Risky outlook

With the FTSE 100 having fallen heavily in the last week, it could come under further pressure in the near term. Investor sentiment has taken a sharp decline of late, with the global trade war likely to remain a drag on the index’s performance over the coming months.

There is little sign of an end to the ramping-up of tariffs placed on imports by a variety of economies, including the US, China and the EU. This could produce a lower rate of economic growth over the long run, which may cause investors to price-in lower valuations for a variety of FTSE 100 shares in the meantime.

Buying opportunity

Investors who are concerned about their short-term portfolio performance may decide to sell their holdings in order to purchase less risky assets. For long-term investors, though, such a strategy seems to be illogical. After all, they generally seek to purchase high-quality businesses when they are trading at low prices, with the aim being to sell them at high prices further down the line.

As such, at a time when the FTSE 100 is trading on a lower price level than it has over recent months, today could represent a better buying opportunity than when the index traded at a higher price. In other words, share prices are lower, and the margins of safety they offer are higher.

History shows that buying during periods of uncertainty for the wider economy and stock market can be a beneficial strategy. It may not produce high returns in the short run, but the cyclicality of the stock market means that patient investors who are not overly concerned about the performance of their portfolios during periods of uncertainty can use the ups and downs of the FTSE 100 to their advantage.

Diversification

Of course, diversifying among a range of stocks is paramount to keeping risk at a relatively low level. Since the FTSE 100 has an international focus, it is fairly straightforward for an investor to obtain a high degree of international diversity in order to potentially limit risks such as Brexit and a possible slowdown in the growth prospects of Asia.

Through buying a mix of high-quality businesses at fair prices, any investor can increase their chances of generating high returns. For companies to trade at lower prices, there usually must be heightened risk. While this may mean a period of volatility, it can afford opportunities to ‘buy low’ for long-term investors.

Peter Stephens has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Dividend Shares

How much do you need in an ISA to make £1,000 of passive income in 2026?

Jon Smith looks at how an investor could go from a standing start to generating £1,000 in passive income for…

Read more »

Investing Articles

Can the Lloyds share price hit £1.30 in 2026?

Can the Lloyds share price reproduce its 2025 performance in the year ahead? Stephen Wright thinks investors shouldn’t be too…

Read more »

Young woman working at modern office. Technical price graph and indicator, red and green candlestick chart and stock trading computer screen background.
Investing Articles

Down 45%, is it time to consider buying shares in this dominant tech company?

In today’s stock market, it’s worth looking for opportunities to buy shares created by investors being more confident about AI…

Read more »

A rear view of a female in a bright yellow coat walking along the historic street known as The Shambles in York, UK which is a popular tourist destination in this Yorkshire city.
Investing Articles

Is the BP share price about to shock us all in 2026?

Can the BP share price perform strongly again next year? Or could the FTSE 100 oil giant be facing a…

Read more »

Light trails from traffic moving down The Mound in central Edinburgh, Scotland during December
Investing Articles

£5,000 put into Nvidia stock could be worth this much by next Christmas…

Nvidia stock is set to rise significantly for the sixth calendar year in seven. But does Wall Street see Nvidia…

Read more »

Investing Articles

Looking for New Year growth stocks? Here’s an epic bargain to discover

This FTSE 250 share has more than doubled in 2025. Here's why our writer believes it remains one of the…

Read more »

Night Takeoff Of The American Space Shuttle
Investing Articles

4 mega-cheap growth shares to consider for 2026!

Discover four top growth shares that our writer Royston Wild thinks may be too cheap to ignore. Could these UK…

Read more »

Tesla car at super charger station
Investing Articles

Can Tesla stock do it again in 2026?

Tesla stock has been on fire (again) in 2025. Might we say the same thing this time next year? Paul…

Read more »