Why I think the FTSE 100 is cheap given the fusion news

Motley Fool contributor Jay Yao writes why he thinks the FTSE 100 has more value now given recent news about fusion technology.

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 beginning of September, the market cap of one company, Apple, surpassed the collective market cap of the entire FTSE 100. Given that the FTSE 100 consists of many leading global multinational companies, Apple’s achievement is pretty breathtaking. 

So how did one company achieve so much?

Well, Apple did it by riding the development of mobile computing. Apple got into the smartphone trend at just the right time with the original iPhone. The company has dominated the lucrative high end of the market ever since. The company makes great products and has created a ecosystem that’s hard to leave. 

Speaking of development, I think another big one could eventually rival the smartphone in scale and benefits. I’m talking about the development of fusion technology. A group of MIT-associated scientists recently announced there’s a good chance fusion might be commercially viable by the 2030s. This would be more than a decade sooner than many had previously expected.

I think the announcement is bullish news for the FTSE 100. Here’s why. 

More sustainable future

If fusion is commercialised a decade earlier than expected, it could help reduce global warming. This in turn could lower the level of economic destruction caused by rising temperatures. Consumers would have more money to spend, and the FTSE 100 would likely have higher sales and profits given the global nature of many of its components. 

More importantly, the planet will be more sustainable, arguably making the FTSE 100’s earnings more sustainable. If the world is more sustainable, the Footsie should also have a higher valuation, in my opinion, all else being equal. 

Fusion technology could also lower the cost of energy, which would also benefit many companies in the leading British index.

Why fusion isn’t doing much for the FTSE 100 now

While I think the fusion breakthrough will likely benefit the FTSE 100, the index didn’t rally on the news. The index declined the day after the news made headlines on 29 September, As of 22 October, the index is actually lower than it was in late September. 

I think one reason for the index not rallying on the news is that the benefit of fusion is still years away. There is still a lot of work to be done. Given that many in the stock market only care about next quarter or next year, the ‘good news’ isn’t priced in. 

Nevertheless, as a long-term investor in the FTSE 100, I think the announcement offers a potential opportunity. As the technology becomes more viable, I think the market will factor in more of the fusion’s net benefit and the FTSE 100’s overall valuation will benefit. If management captures the opportunity correctly, I think the fusion news could be good for FTSE 100 components such as BP, too. 

Cheap

Speaking of valuation, I believe the Footsie index is cheap given its year-to-date decline. With a potential economic recovery next year, I think optimism could return and the stock market could rebound. 

There may still be a lot of short-term volatility and potentially more downside given the economic slowdown caused by Covid-19. But from perspective, the future’s still bright. Thanks to the recent advancements in fusion, it could be even brighter. 

Jay Yao has no position in any of the shares mentioned. The Motley Fool UK owns shares of and has recommended Apple. 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

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

£5,000 invested in Legal & General shares a month ago is now worth…

Legal & General shares have dropped by mid-single-digit percentages. The question is, does this represent an attractive dip-buying opportunity?

Read more »

Two multiracial girls making heart sign against red background
Investing Articles

2 world-class stocks to consider buying while they’re down 20% and ‘on sale’

Looking for stocks to buy? These two names have attractive long-term prospects and are currently trading around 20% below their…

Read more »

Close-up image depicting a woman in her 70s taking British bank notes from her colourful leather wallet.
Growth Shares

£2k invested in this FTSE 250 stock a year ago would have tripled my money

Jon Smith reveals a FTSE 250 stock that's been surging over the past year, but could have further room to…

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

£10,000 invested in Barclays shares at the start of 2026 is now worth…

Barclays' shares have taken a massive hit in 2026, falling almost 20%. Is there potential for a rebound towards 500p…

Read more »

Aston Martin DBX - rear pic of trunk
Investing Articles

£5,000 invested in Aston Martin shares at the start of 2026 is now worth…

Aston Martin shares are stuck in reverse right now. But down 99%, is there potential for a Rolls-Royce-like turnaround at…

Read more »

Road trip. Father and son travelling together by car
Investing Articles

Down 11% in a day! I’ve just bagged myself a FTSE 250 bargain

James Beard’s taken advantage of what he says is an over-reaction by investors to news of the departure of one…

Read more »

Businessman with tablet, waiting at the train station platform
Investing Articles

As the stock starts to fall, is it time to consider selling Rolls-Royce shares?

Rolls-Royce shares fell in March after years of gains. Is this a buying opportunity or the beginning of something more…

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

Diageo shares are down 28% — but is the market overcorrecting a cyclical slowdown?

Andrew Mackie looks beyond the cyclical slowdown in Diageo shares to reveal a misread growth story driven by portfolio shift…

Read more »