I asked ChatGPT what FTSE 100 shares I should buy. It said…

Millions of UK investors use AI to decide what stocks to buy. What did it tell me when I asked which FTSE shares I should add to my 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.

Man thinking about artificial intelligence investing algorithms

Image source: Getty Images.

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.

More and more Britons are using artificial intelligence (AI) models to save and invest. So I’ve jumped on board and asked ChatGPT — by far the world’s most popular AI platform — which FTSE 100 stocks I should consider buying.

The answers it gave were interesting. But they were also deeply troubling. Let me explain why.

AI boom

The number of people who are using the likes of ChatGPT to hit their financial goals is staggering. According to Lloyds, “more than 28m UK adults are now turning to artificial intelligence to help manage their money”.

Interestingly, the Footsie bank’s research showed more than a third of Britons use AI for investment research and recommendations:

Percentage of survey respondents using AI.
Source: Lloyds Banking Group

Yet paradoxically, Lloyds’ research also revealed that trust in AI remains thin. For instance, 80% of respondents say they “are concerned about receiving inaccurate or outdated information”. Another 72% have stressed worries over potential AI bias affecting recommendations.

Starting off hot

As an investor, questions over information quality have always stopped me from embracing AI when choosing stocks. I’ve already noticed troubling results in other areas, from tailoring my weightlifting programme to planning my holidays.

But I’m prepared to try anything once. Besides, I’m curious to see what AI might be capable of. So I punched “what are the best two FTSE 100 shares I should buy?” into ChatGPT and sat back to see what it threw up.

The first suggestion was AstraZeneca (LSE:AZN). A promising start, I thought. ChatGPT flagged up the company’s “global pharma pipeline, and growth in oncology and cardiovascular/renal/metabolic (CVRM) treatments”.

Though it also carries “drug-pipeline risk and regulatory risks (like pricing, approvals)”, ChatGPT says it could be “a growth with defence ballast pick [that’s] good in uncertain macro climates”. It also praised the “diversification benefits” that AstraZeneca’s worldwide operations provide.

AstraZeneca’s delivered an exceptional 13.2% average annual return since 2015. With a packed pipeline, and global healthcare demand rapidly increasing, the company looks in good shape to hit its $80bn annual revenue target by 2030 and continue delivering impressive returns.

Glaring errors

Yet while ChatGPT started well, the good times didn’t last. In fact, my stock picking exercise then took an alarming turn for the worse. The AI’s next buy recommendation was BP (LSE:BP), with the oil producer’s “dividend history” cited as one reason.

Okay, BP’s annual dividends have risen consistently since 2022, and are forecast to keep on growing for the next few years. But BP’s also cut them three times since 2010, including twice this decade. Dividend forecasts are also never set in stone.

But my main worry over ChatGPT’s suggestion related to its description of BP as an “energy transition” play. The truth is that the FTSE company this year generated just a fraction of profits from non-fossil fuels. Also this year, it slashed spending targets on clean energy and sold renewable assets (like its US onshore wind business back in July) as it refocuses on oil.

This strategy may pay off when crude prices are high. However, it also raises serious long-term questions for investors as the clean energy transition gathers pace.

I expect AI recommendations to improve as the technology becomes more sophisticated. But right now, I believe the dangers of using AI to choose shares to buy remain far too great to ignore.

Royston Wild has no position in any of the shares mentioned. The Motley Fool UK has recommended AstraZeneca Plc and Lloyds Banking Group Plc. 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

Investing Articles

Here’s a FTSE 100 share that I think could beat Rolls-Royce in 2026

Our writer explores whether this could be the best stock to supercharge a FTSE 100 portfolio and capture gains from…

Read more »

Rolls-Royce Hydrogen Test Rig at Loughborough University
Investing Articles

The paradoxical nature of Rolls-Royce shares in 2026

Mark Hartley unpacks the economic anamoly that is Rolls-Royce shares and attempts to analyse the pros and cons of this…

Read more »

Bus waiting in front of the London Stock Exchange on a sunny day.
Growth Shares

This FTSE 100 growth stock sits at a 52-week low. Time to consider buying?

Is the huge tumble in the share price of this FTSE 100 growth stock a wonderful opportunity for new investors?…

Read more »

Young woman holding up three fingers
Investing Articles

£5,000 put into the FTSE 100’s top 3 dividend shares today could earn this much in 5 years…

If someone spread £5k evenly over the FTSE 100's three highest-yielding shares today and did nothing for five years, what…

Read more »

Three signposts pointing in different directions, with 'Buy' 'Sell' and 'Hold' on
Investing Articles

Up 10% after earnings, is 3i one of the UK’s best stocks to buy once more?

3i often goes unnoticed by investors. But that means they’ve been missing out on one of the UK’s best-performing stocks…

Read more »

Investing Articles

Are these 2 of the best UK stocks to buy in February 2026?

Investors looking for stocks to buy have a run of important full-year results coming in February. Here are two that…

Read more »

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

Are Marks and Spencer shares a slam-dunk buy with a forward P/E of just 11?

Marks and Spencers shares have been flying of late, but they still look cheap on certain metrics. Is there opportunity…

Read more »

Night Takeoff Of The American Space Shuttle
Growth Shares

Is SpaceX a stock to buy for my ISA in June?

This writer doesn't normally buy into new IPO stocks. Will he make an exception in 2026 if SpaceX makes its…

Read more »