Should I buy CSL shares in December?

After a big fall, is this now the time to jump on CSL shares?

Key points
  • CSL's share price has declined by 35% in 2025, influenced by a challenging US healthcare industry and cautious growth prospects.
  • Despite headwinds, UBS sees potential medium-term recovery, especially with new vaccine opportunities and operational efficiencies driving net profit growth.
  • UBS maintains a buy rating with a price target of $275, suggesting a potential 50% rise in CSL's share value over the next year.

The CSL Ltd (ASX: CSL) share price decline of 35% this year (at the time of writing) is one of the biggest among ASX blue-chip shares in 2025.

While the company has decades of delivering growth under its belt, the market now seems more cautious about its growth prospects in the near future.

The US healthcare industry looks challenging under the relatively new US administration, with a shift in focus on vaccines and other healthcare areas. As a major player in the vaccine space, this seems like a headwind for CSL's medium-term growth. Other areas of CSL's business may also not grow as fast as previously hoped.

But the significant decline of the CSL share price may mean the business is undervalued. Let's take a look at the potential for capital gains.

Medical workers examine an x-ray or scan in a hospital laboratory.

Image source: Getty Images

CSL share price potential

Earlier this month, CSL held an investor day, with UBS seeing some mixed numbers.

Seqirus (CSL's vaccine business) is expected to see sales fall 15% in FY26, which "reflects another significant drop in US vaccination rates, partly offset by market share gains in 65+ years in Europe."

UBS believes there is scope for a meaningful US recovery over the medium term, with flu doses in FY26 around 30% below pre-COVID levels, compared to other large markets, which are stabilising at pre-COVID levels. But, that probably requires "greater doctor support coupled with political pressure from a higher disease burden", with CSL not assuming a recovery in the next couple of financial years.

The broker then said:

The largest long-term opportunity [is] through new aTIVc (combined cell based and adjuvant vaccine) which should receive European regulatory approval in 2026, while a reducing number of COVID vaccinations limits the upside of its future mRNA product. Valuation: $275/share (unchanged) in 12 months' time.

UBS is expecting a 100 basis point (1%) increase of CSL's net profit after tax (NPAT) margin across FY27 and FY28, which helps take the potential net profit growth to high single digits.

The broker also points out that CSL has a cost-saving target of US$550 million, which could assist earnings.

Areas such as operating efficiencies, targeted gross cost savings in research and development, commercial efficiencies, and overheads could help the business reduce its addressable manufacturing costs by 11% by FY28.

CSL thinks it's well-positioned to deal with US tariffs and 'most favoured nation' (MFN – cheaper healthcare costs for US customers) issues, thanks to the likely plasma exclusion and CSL's growing US investment.

UBS rating on the ASX healthcare share

The broker has a buy rating on the business, with a price target of $275. That implies a possible rise of 50% over the next year from where it is today.

UBS is projecting profit growth each year between FY26 and FY30. But the business may need to deliver on earnings expectations to justify a strong double-digit capital gain over the next 12 months.

Motley Fool contributor Tristan Harrison has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has positions in and has recommended CSL. The Motley Fool Australia has recommended CSL. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Healthcare Shares

A doctor appears shocked as he looks through binoculars on a blue background.
Healthcare Shares

UBS thinks Telix Pharmaceuticals shares will go how high?

Good news out of the US has led to a share price target upgrade.

Read more »

Scientist taking down notes from a tablet, with two other scientists working in the background.
Healthcare Shares

Healius vs Australian Clinical Labs: Which ASX pathology share wins?

Healius and Australian Clinical Labs are both top pathology providers, but one stands out for profits, dividends, and recent momentum.

Read more »

Doctor looks at a graph on a tablet.
Healthcare Shares

Ramsay Health Care vs Sonic Healthcare: Which healthcare stock is better value?

Which offers better value — Ramsay Health Care or Sonic Healthcare? I compare their fundamentals, dividends, momentum and reveal my…

Read more »

A doctor looks unsure.
Healthcare Shares

CSL shares jump 93%: Is the ASX biotech stock a buy, sell or hold for October?

Can the CSL share price rebound keep going?

Read more »

Two doctors having a discussion about a patient diagnosis, holding digital tablet.
Healthcare Shares

Are CSL shares a buy after its big news?

I look at what CSL’s latest drug development deal could mean for the healthcare giant’s long-term growth.

Read more »

A female scientist in a laboratory setting using a tablet to review data, with a male scientist working in the background.
Healthcare Shares

ResMed vs Fisher & Paykel Healthcare: Which is better value?

How do ResMed and Fisher & Paykel compare on value, income, and share price momentum? Here’s my verdict on which…

Read more »

Happy doctor using her laptop.
Healthcare Shares

CSL unveils exclusive Alentis deal to advance rare disease treatments

CSL unveils a major partnership for rare disease drug development, enhancing its global nephrology strategy.

Read more »

Doctor sees virtual images of the patient's x-rays on a blue background.
Healthcare Shares

Could this ASX biotech really jump more than 80% in value?

This company's new technology has one broker impressed.

Read more »