Is now the time to buy green shares?

With a surge in ESG investing, is now the right time to invest in green shares? Our writer explains his approach to this question.

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 past several years, green shares have become a popular investing idea. Between a surge in environmental, social, and governance (ESG)-themed investing funds seeking a home and increased regulatory moves intending to help the environment, green shares have been in the spotlight like never before.

Is now a good time to buy green shares for my portfolio – or have I already missed the boat?

Green shares have surged

Many shares with environmental credentials have surged over the past year or two. Consider as an example the waste management and recycling company Renewi. Its shares are up 219% over the past year, as of earlier today. Rival Biffa has put on 81% in the same period.

That sort of performance is typically associated with fast-growing companies. But Renewi’s revenues have fallen for the past two years in a row. While its profit performance has been improving, last year its £1.7bn revenue generated just £11m in post-tax profit. That’s a profit margin of less than 1%.

Biffa’s revenues last year also slid. It recorded a £41m loss. Both the chief executive office and finance chief sold shares on the open market last month.

Making money from green strategies

As an investor, I am interested first and foremost in the prospective financial returns from a share I might buy. But when I look at the accounts of companies like Renewi and Biffa, I am not encouraged. So I don’t think now is the time for me to buy such green shares.

Their profitability tends to move around quite a bit. Consistent revenue growth is also lacking. Profit margins look thin to me. Most of all, a lot of demand is driven not by pure market forces, but by specific political agendas. For example, local authorities contract such companies because they want to achieve certain defined environmental goals. On the one hand, that can be a lucrative source of revenue. But seen in another light, it means a company’s competitive advantage is fragile. A change in political priorities or environmental policy could cut off future demand even if a company’s service is good.

Green shares and financial fundamentals

The same can apply to green shares in other fields, from power generation to carbon capture. Straightforward commercial considerations are blurred by the prospect of government subsidies, bans on competitive products for the same task and a torrent of venture capital money pouring into environmental themes. Some of those companies may go on to be highly profitable and rewarding for shareholders. But in many cases, it is difficult to assess the long-term financial prospects for a green company amid changing environmental priorities.

Take Ceres Power or ITM Power as an example. I expect energy demand overall to grow with time. There is a concerted push in some countries to use less fossil fuels. But who will win from this? Ceres and ITM both have interesting technology – but both are loss-making. The longer that continues, the less compelling I find their investment cases to be.

I think many green shares have seen price rises ahead of the improvement in business prospects. I remain open to investing in green shares for my portfolio. But before I buy I’d focus on a share’s prospective financial returns based on its business fundamentals, not just its environmental story.

Christopher Ruane 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

Young mixed-race couple sat on the beach looking out over the sea
Investing Articles

Looking for a £750 monthly passive income? Here’s how much it takes

The idea of buying dividend shares for their passive income potential can sound promising. How might the nuts and bolts…

Read more »

Calendar showing the date of 5th April on desk in a house
Investing Articles

£20,000 in this ISA portfolio would generate £1,400 in passive income

Ben McPoland presents a ready-made Stocks and Shares ISA portfolio containing five UK names that as a group currently yield…

Read more »

Person holding magnifying glass over important document, reading the small print
Investing Articles

The most underrated stock in the FTSE 100?

Nobody seems to like the FTSE 100’s water utilities. But could Severn Trent be the biggest opportunity that investors aren’t…

Read more »

a couple embrace in front of their new home
Investing Articles

£1,000 now buys 1,075 Taylor Wimpey shares. Worth it for the 8% dividend yield?

There’s a massive dividend yield on offer from his well-known UK housebuilder right now. But what are the risks for…

Read more »

Night Takeoff Of The American Space Shuttle
Investing Articles

Want to invest in SpaceX, Revolut, and TikTok? Consider buying this FTSE 100 stock

Ben McPoland thinks this FTSE 100 investment trust is a top stock to consider buying to gain exposure to the…

Read more »

Calendar showing the date of 5th April on desk in a house
Investing Articles

Here’s my Stocks and Shares ISA plan for 2026/27

Stephen Wright has a clear plan when it comes to investing in his Stocks and Shares ISA. But do the…

Read more »

Two elderly people relaxing in the summer sunshine Box Hill near Dorking Surrey England
Investing Articles

Where to look for safety in today’s stock market?

Stephen Wright has been looking for safety in a specific place in today’s stock market. And Warren Buffett’s firm has…

Read more »

Young black colleagues high-fiving each other at work
Investing Articles

This 5-share ISA could deliver an amazing second income of £762 a month

As the world’s stock markets plunge, many yields are rising. James Beard looks at five shares that could generate an…

Read more »