We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

If a FTSE 100 bull market has begun, is now a good time to buy shares?

The FTSE 100 has officially entered bull market territory, but will it last? I argue that it should not matter too much for the long-term regular investor.

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.

Has the FTSE 100 turned bullish? On March 23, the FTSE 100 crashed to a low of 4,922.76. On Tuesday this week, the index closed at 5,958.5, a 20% rise from the March low. On Wednesday the index closed above 6,000. It is generally accepted that a 20% decline from a high distinguishes a bear market from a correction. Likewise, a 20% rise from a low turns a mere rally into an official bull market. The FTSE 100 is now in bull market territory.

How long will the FTSE 100 bull run?

Bear markets end bull markets. According to investment bank Goldman Sachs a bear market usually removes 68% of the gains made in the previous bull market. The recent decline in the FTSE 100 was around 55%. If that was the extent of the bear market, then it was relatively mild. Moreover, it was one of the shortest on record.

XXX

That is surprising given the declines in GDP and employment reported already. Economic activity is starting to pick up in some places, but normality looks way off. GDP forecasts still look bleak. Looking at recent corporate news, we can see bank profits are being crushed and airlines are laying off staff (some are close to bankruptcy).

What I am getting at is that if this new bull market were to run on, it would be unusual. So while the FTSE 100 has met the criteria for entering a bull market, I would not rule out a prolonged period of flat trading or another pullback.

Bull or bear investing

I don’t think investors should waste time worrying about whether this bull market will run on for years, or hit another bump in the road. Time in the market is more important than timing the market. Trying to invest only at the start of long-running bull markets, or trying to sell before a bear market and not invest during one, are examples of trying to time the market.

Unless an investor is exceptionally gifted, what usually happens when trying to time the market is that stocks get sold during bear markets at a loss, and not rebought until markets have gone up a lot, missing a lot of gains. Investors will usually do better by investing regularly, no matter the state of the markets.

Investors are happy to buy stocks when markets are rising; it seems odd to avoid buying them on the cheap as prices are falling. Carrying on investing when markets are falling lowers the average cost of purchases made in the preceding bull market. Investors get more shares for their money when prices are lower. Far from being disasters, a long-term and regular investor should view bear markets as opportunities.

Maybe the FTSE 100 will continue to rise, and perhaps it will not. One thing I am confident about is that investing in a bunch of quality stocks or an index fund regularly and holding for the long term is usually a better plan for building wealth than trying to time the markets. 

Views expressed 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

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »