Stock Markets February 10, 2026

CSL Shares Fall to Eight-Year Low After Weak Half-Year Results and Leadership Change

Underlying profit slips, one-off charges and policy shifts weigh on revenue and trigger large impairments

By Sofia Navarro CSL
CSL Shares Fall to Eight-Year Low After Weak Half-Year Results and Leadership Change
CSL

CSL Ltd reported a weaker first-half performance, with underlying net profit falling and reported earnings hit hard by restructuring costs and asset write-downs. The company also announced an interim CEO and expanded its buyback program even as it kept full-year guidance intact.
The Sydney-listed biotech saw its stock drop sharply, reaching levels not seen since early 2018, after management disclosed impairments, lower product sales linked to policy changes and headwinds from generic competition.

Key Points

  • Underlying net profit after tax attributable to shareholders fell 7% to $1.9 billion for the six months ended Dec. 31.
  • Reported net profit declined 81% to $401 million after one-off restructuring charges and impairments.
  • Revenue declined 4% on a constant currency basis to $8.3 billion, with CSL Behring sales down 7% due to lower immunoglobulin and albumin sales following Medicare reforms in the US and policy changes in China.

Shares of CSL Ltd (ASX:CSL) tumbled to eight-year lows on Wednesday following the release of its half-year financial results, which showed a decline in underlying profit and a steep fall in reported earnings after several one-off charges.

For the six months ended Dec. 31, the company said underlying net profit after tax attributable to shareholders dropped 7% to $1.9 billion. Reported net profit plunged 81% to $401 million, a fall the company attributed to one-off restructuring costs and asset impairments recorded during the period.

Sydney-listed shares slid as much as 12.4% to A$150.21 - their lowest level since February 2018.

The company disclosed that the previous evening, after market close, it had named Gordon Naylor as interim chief executive, replacing Paul McKenzie.

On a constant currency basis, revenue declined 4% to $8.3 billion. Within CSL’s operating divisions, CSL Behring sales were down 7%, a decrease the company linked to lower immunoglobulin and albumin sales following recent Medicare reforms in the United States and policy changes in China.

CSL recorded after-tax impairments of about $1.1 billion, largely associated with intellectual property at its Vifor and Seqirus units. Management said these impairments reflect pressures from generic competition and reduced demand for vaccine technologies related to COVID-19.

Despite the half-year setbacks, the company reiterated its full-year guidance and announced an increase in its share buyback program to $750 million. CSL said it anticipates that second-half growth will be supported by immunoglobulin and albumin sales together with contributions from recently launched products.

The results highlight a mix of operational and non-recurring impacts on the company’s earnings - from policy-driven volume declines in key markets to strategic write-downs tied to competitive and demand shifts. Market reaction was swift, with the stock moving sharply lower during trading.


Market context

  • Underperforming sales in key product lines linked to policy changes in major markets weighed on revenue.
  • Significant impairments were taken against intellectual property at Vifor and Seqirus, reflecting competitive pressures.
  • Leadership change announced with an insider appointed as interim CEO following the results.

Risks

  • Policy changes in key markets - such as Medicare reforms in the US and adjustments in China - are impacting sales volumes for immunoglobulin and albumin, posing revenue risk to the healthcare sector.
  • Generic competition and reduced demand for COVID-related vaccine technology have prompted about $1.1 billion of after-tax impairments at Vifor and Seqirus, indicating product and IP risk within CSL’s units.
  • Restructuring costs and an announced interim CEO create leadership and execution uncertainty that could affect near-term operational stability and investor confidence.

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