Stock Markets April 30, 2026 03:22 AM

United Utilities moves ahead with £800m equity raise to back AMP8 expansion

Company ups AMP8 investment to £11.5bn, targets faster RAB growth and higher regulatory returns while maintaining gearing range

By Sofia Navarro
United Utilities moves ahead with £800m equity raise to back AMP8 expansion

United Utilities has launched an £800 million share issue, equivalent to around 9% of its market capitalisation, to fund an increase in its AMP8 capital programme to £11.5 billion from a previously planned £9 billion. Management expects faster regulatory asset base growth and has raised its target regulatory returns to 10-11%, while aiming to keep gearing within a 55-65% range for AMP8.

Key Points

  • United Utilities is issuing £800 million of new shares, equivalent to about 9% of its market capitalisation.
  • AMP8 investment is increased to £11.5 billion from £9 billion, an incremental £2.5 billion of capex across fiscal years 2025 to 2030; RAB growth is now expected at about 10% CAGR to 2030 versus 7% previously.
  • Financial framework updated to target 10-11% regulatory returns, roughly 100 basis points above prior guidance; equity issue includes new 5 pence ordinary shares and a £400 million cornerstone commitment. Sectors impacted: utilities, infrastructure, and capital markets.

United Utilities PLC has unveiled an £800 million equity raise intended to provide the shareholder-funded portion of a larger AMP8 investment plan. The company says the offering represents approximately 9% of its market capitalisation and will support an elevated capital expenditure programme across the next regulatory period.

Under the revised plan, total AMP8 investment will rise to £11.5 billion, up from the previous £9 billion target. That change reflects an incremental £2.5 billion of additional capital expenditure scheduled across the fiscal years 2025 to 2030.

Management projects that the increased spending will accelerate growth in the regulatory asset base - lifting the expected compound annual growth rate to about 10% through 2030, compared with a prior expectation of roughly 7%.

The group's financial framework has also been amended, with management now aiming for regulatory returns in the 10-11% range. Company commentary describes this revised return target as being around 100 basis points higher than earlier guidance.

The equity issuance will be carried out through new ordinary shares with a nominal value of 5 pence each. The transaction includes a £400 million cornerstone commitment as part of the placement.

United Utilities has stated that the equity proceeds are earmarked specifically for the equity portion of the incremental capital expenditure associated with the higher AMP8 programme. Company guidance indicates an expectation to keep gearing inside a 55-65% target range for the duration of AMP8.

Investors will therefore see the company increase both the scale of planned infrastructure investment and the financial targets that accompany it, while using an equity issuance to fund the additional equity requirement of the expanded capital plan. The move frames the enlarged AMP8 programme, the updated regulatory-return objective and the companys stated gearing target as interlinked elements of its finance and investment strategy.


Summary

United Utilities is raising £800 million via a new share issue - roughly 9% of market capitalisation - to fund a £2.5 billion uplift in AMP8 capex, taking total AMP8 investment to £11.5 billion for fiscal years 2025 to 2030. Management expects the higher spend to raise RAB growth to about 10% CAGR to 2030 and has increased its regulatory return target to 10-11%. The share issue comprises new 5 pence ordinary shares and includes a £400 million cornerstone commitment; the company expects to maintain gearing between 55-65% through AMP8.

Risks

  • Market response to an equity issuance of approximately 9% of market capitalisation could affect investor sentiment and valuation in the utilities and capital markets sectors.
  • Execution risk in delivering the increased £11.5 billion AMP8 investment programme could influence outcome metrics such as RAB growth and regulatory returns, impacting the regulated utilities sector and infrastructure investors.
  • Maintaining gearing within the stated 55-65% range through AMP8 is an expected target but represents an uncertainty that could affect credit metrics and financing conditions for the company and related infrastructure borrowers.

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