BT pension scheme records £300m loss after write-off of Thames Water stake

BT’s pension fund reports a £300 million loss tied to its holding in Thames Water, according to reports citing an analyst presentation. The loss stems from a decision made in 2024 to write off the fund’s 8.7% equity stake in Thames Water, the UK’s largest water company. The write-off comes as Thames Water faces significant financial stress, including pressure from a large debt burden reported at about £20 billion. The loss indicates the impact of Thames Water’s worsening financial position on major private pension investments. The Financial Times first reported details of the write-off, and the Guardian describes the same development, noting that the move further aligns with a growing expectation of government involvement or nationalisation, as Thames Water continues to struggle to manage its debts. Across the reports, both outlets characterize the £300 million figure as an outcome of the 2024 impairment of BT’s pension exposure to Thames Water. The coverage focuses on the financial accounting effect of the stake write-off rather than changes to BT’s telecommunications operations.