ESG investing: should I buy these 2 UK shares?

As ESG investing grows, Christopher Ruane digs into the pros and cons of adding two UK shares with environmental and social credentials to his portfolio.

| More on:

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.

ESG investing has boomed. Many investors are now looking at the environmental, social, and corporate governance records of the companies they choose. Financial prospects alone are not the only consideration.

Below I reveal two shares I have been assessing for my portfolio, both from an ESG and financial perspective.

Vaccine champion

One of the companies I am considering is AstraZeneca (LSE: AZN). Why? Its focus on providing vaccines in the key phase of the pandemic to developing countries without profit ticks the social box in my view.

The pharma giant’s success launching its vaccine at speed compares to its more mixed business results in recent years. Along with dissatisfaction at high executive pay, that helps to explain why its shares have fallen 9% over the past year. Could now be the time to add it as an ESG investing choice to my portfolio?

Pros and cons

The vaccine has pushed AstraZeneca onto the front pages, but its business is much broader than that.

In the past couple of years, the company has reversed a falling revenue trend. Profits also more than doubled. That is driven by more than just its vaccine development, though ultimately it will help revenue and profits.

The company has a strong research and development capability. The years it spent building up its pipeline of new drugs finally seems to be paying off. Releases of products such as Lynparza have generated multibillion pound sales and the company is lining up a successor.

But AstraZeneca does face risks. Pipeline development is very costly and there can be unforeseen disappointments as clinical trials progress. That can lead to falling revenues.

Given AstraZeneca’s quality portfolio and future pipeline, I would consider picking it as an ESG investing option for my portfolio.

ESG investing in recycling

A second choice I would consider for ESG investing in my portfolio is Biffa (LSE: BIFF).

The name is familiar from bin lorries. Biffa already positions itself as the leading sustainable waste management company in the UK. It announced yesterday it would be buying more waste management and recycling assets from Viridor.

The company is set to publish its annual results next week. In a trading update in March, it said that its second half performance surpassed its base case planning scenario.

Biffa share price risks

One concern I have about Biffa is its debt load. Like many companies, the company has borrowed to help finance itself. Its estimated net debt of £440m-£460m at the end of March makes the company more highly leveraged than I would like. That is still within its loan covenants. But servicing this debt risks lower future returns to shareholders.

I am also concerned that customers such as councils could look to cut budgets in coming years. That would be a risk to the company’s profits.

My next ESG investing move

I have been looking at both AstraZeneca and Biffa for my portfolio. Their ESG credentials are sufficient for me. But I think ESG investing involves financial considerations too. I would never buy a share just because it had a strong ESG story.

I would consider buying AstraZeneca for my portfolio now. But Biffa’s debt pile puts me off the shares for now. I will wait and take the opportunity to study next week’s results closely.

christopherruane 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

Rolls-Royce's Pearl 10X engine series
Investing Articles

Can the Rolls-Royce share price hit £16 in 2026? Here’s what the experts think

The Rolls-Royce share price has been unstoppable. Can AI data centres and higher defence spending keep the momentum going in…

Read more »

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

Up 150% in 5 years! What’s going on with the Lloyds share price?

The Lloyds share price has had a strong five years. Our writer sees reasons to think it could go even…

Read more »

Investing Articles

Where will Rolls-Royce shares go in 2026? Here’s what the experts say!

Rolls-Royce shares delivered a tremendous return for investors in 2025. Analysts expect next year to be positive, but slower.

Read more »

Emma Raducanu for Vodafone billboard animation at Piccadilly Circus, London
Investing Articles

Up 40% this year, can the Vodafone share price keep going?

Vodafone shareholders have been rewarded this year with a dividend increase on top of share price growth. Our writer weighs…

Read more »

Buffett at the BRK AGM
Investing Articles

Here’s why I like Tesco shares, but won’t be buying any!

Drawing inspiration from famed investor Warren Buffett's approach, our writer explains why Tesco shares aren't on his shopping list.

Read more »

Investing For Beginners

If the HSBC share price can clear these hurdles, it could fly in 2026

After a fantastic year, Jon Smith points out some of the potential road bumps for the HSBC share price, including…

Read more »

Investing Articles

I’m thrilled I bought Rolls-Royce shares in 2023. Will I buy more in 2026?

Rolls-Royce has become a superior company, with rising profits, buybacks, and shares now paying a dividend. So is the FTSE…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

With Warren Buffett about to step down, what can investors learn?

Legendary investor Warren Buffett is about to hand over the reins of Berkshire Hathaway after decades in charge. How might…

Read more »