As AstraZeneca’s share price drops 13% should I buy on the dip?

AstraZeneca’s share price has fallen following unfavourable results for one of its new drugs, but others look good, and earnings prospects remain high.

| 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.

Abstract bull climbing indicators on stock chart

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.

How quickly things have changed for AstraZeneca’s (LSE: AZN) share price.

Just last month, it had risen sufficiently to make the firm the first in the UK with a market capitalisation of £200bn+.

Now it has dropped 13% from its 3 September 12-month traded high of £133.38.

However, as a former investment bank trader, the mere fact of it falling – or rising – is irrelevant to my investment decision.

The only question I ever ask nowadays is whether there is any value in a particular stock. If there is, then I will decide whether it suits my current investment criteria overall.

Is there any value in this stock?

My first step here is to look at a key relative stock valuation measure, such as the price-to-earnings ratio (P/E).

AstraZeneca currently trades at a P/E of 37.2. This is the bottom of its competitor group, which has an average P/E of 65. So, it is very undervalued on this basis.

The same applies to the other two key relative valuation ratios I use – price-to-book (P/B) and price-to-sales (P/S).

It trades at a P/B of just 6.1 against a peer average of 37.8. And it has a P/S of 4.9 compared to the 13.3 group average.

To work out what these undervaluations mean in cash terms, I ran a discounted cash flow analysis.

This shows AstraZeneca shares to be 51% undervalued at their current £115.55.

So a fair price would be £235.82, although they may go lower or higher than that. In any event, the answer for me is that there is huge value in the stock.

So why’s it down?

The key driver for the recent price loss was disappointing trial results for its Datopotamab deruxtecan (Dato-DXd) drug. These showed that it failed to significantly extend the lives of breast cancer patients.

However, the firm has since said there is evidence the drug offers value for patients. Consequently, it will continue discussions with regulators about its use.

Any such failure is a blow to a pharmaceutical firm. Future failures on any of its major drugs remain a key risk to AstraZeneca, being costly in time and money.

That said, AstraZeneca already has another breast cancer treatment drug – Enhertu – already approved and on sale, regardless of what happens with Dato-DXd.

Additionally positive is the 23 September announcement that its Fasenra asthma medicine has been recommended for approval in the European Union.

And on 20 September, the US FDA approved AstraZeneca’s FluMist influenza nasal spray vaccine for self-administration. This is the first of its kind that patients can give themselves.

What’s the growth outlook from here?

In its 21 May ‘Ambition 2030 and Beyond’ presentation, the firm said it will achieve $80bn+ in revenues by 2030. This compares to $45.8bn at the end of 2023.

It also said at that point that it is on track to deliver mid-30% core operating margin by 2026. It will target at least mid-30% after that, subject to the development of its portfolio.

As it stands – even after the disappointing Dato-DXd trials –analysts forecast that AstraZeneca’s earnings will grow 16.4% a year to end-2026.

My view

I already hold the shares, which I bought for their significant undervaluation and strong growth prospects. Nothing has changed in my view, so I will buy more very soon.

Simon Watkins has positions in AstraZeneca Plc. The Motley Fool UK has recommended AstraZeneca 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

Looking for shares to buy as precious metals surge? 3 things to remember!

Gold prices have been on a tear. So has silver. So why isn't this writer hunting for shares to buy…

Read more »

British Pennies on a Pound Note
Investing Articles

Up 27% in 2025, might this penny share still be a long-term bargain?

Christopher Ruane's happy that this penny share he owns has done well in 2025. But it's still cheaper now than…

Read more »

Two employees sat at desk welcoming customer to a Tesla car showroom
Investing Articles

Here’s what a single share of Tesla stock cost in January – and what it’s worth now!

Tesla stock's moved up this year -- and it's had a wild ride along the way. Christopher Ruane explains why…

Read more »

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

Rolls-Royce shares have done it again in 2025! But could the party be over?

2025's been another storming year for Rolls-Royce shares -- and this writer missed out! Might it still be worth him…

Read more »

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

Is this the last chance to buy these FTSE 100 shares on the cheap?

Diageo and Barratt Redrow's share prices have tanked. Is this the opportunity investors seeking cheap FTSE 100 shares have been…

Read more »

Young mixed-race woman jumping for joy in a park with confetti falling around her
Investing Articles

Legal & General shares yield a staggering 8.7% – will they shower investors with income in 2026?

Legal & General shares pay the highest dividend yield on the entire FTSE 100. Harvey Jones asks whether there is…

Read more »

A pastel colored growing graph with rising rocket.
Investing Articles

With its 16% dividend yield, is it time for me to buy this FTSE 250 passive income star?

Ithaca Energy’s 16% dividend yield looks irresistible -- but with tax headwinds still blowing strong, can this FTSE 250 passive…

Read more »

Hand of person putting wood cube block with word VALUE on wooden table
Investing Articles

Under £27 now, Shell’s share price looks a huge bargain – here’s why

Shell’s share price is at a major discount to its peers, but Simon Watkins believes it won’t do so for…

Read more »