WINNERS & LOSERS: Miners slide; Centrica to pay GBP20 million to Ofgem

Fri, 15th May 2026 10:30

(Alliance News) - The following are the leading risers and fallers among FTSE 100 and 250 index constituents on Friday.

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FTSE 100 winners

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3i Group PLC, up 2.6% at 2,166.50 pence

Diageo PLC, up 1.6% at 1,523.50p

BP PLC, up 1.4% at 548.25p, supported by rise in oil prices

GSK PLC, up 1.1% at 1,893.75p

Shell PLC, up 0.6% at 3,169.00p

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FTSE 100 losers

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Fresnillo PLC, down 7.7% at 3,423.50p, miners slide on drop in metal prices

Antofagasta PLC, down 7.4% at 3,952.50p

Anglo American PLC, down 5.8% at 3,826.00p

Airtel Africa PLC, down 5.4% at 348.50p

National Grid PLC, down 4.9% at 1,227.75p

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FTSE 250 winners

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Aberdeen Group PLC, up 2.5% at 231.60 pence, gets broker raise from Citi to 'buy'

Genuit Group PLC, up 1.4% at 252.80p

Premier Foods PLC, up 1.2% at 292.90p, RBC raises price target to 230p from 210p

Harbour Energy PLC, up 1.2% at 206.00p

Avon Technologies PLC, up 1.0% at 1,559.00p

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FTSE 250 losers

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Hochschild Mining PLC, down 7.2% at 610.50p

Atalaya Mining PLC, down 7.1% at 814.75p

Renishaw PLC, down 4.9% at 5,004.00p

Oxford Instruments PLC, down 4.8% at 2,949.00p

Pennon Group PLC, down 4.6% at 508.75p

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FTSE 100 & 250 movers in focus:

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Centrica PLC, down 4.2% at 193.75 pence, 12-month range 145.85p-220.30p. Its British Gas subsidiary has agreed to pay GBP20 million into Ofgem's Voluntary Redress Fund after the regulator closed its investigation into the supplier's historic involuntary prepayment meter installations. Ofgem, the UK regulator for the electricity and downstream natural gas markets, says British Gas failed to meet standards required for the treatment of vulnerable customers between 2018 and 2023, including cases where prepayment meters were installed under warrant when it was inappropriate to do so. British Gas will also compensate affected customers from the 2018-21 period, in addition to payments already made for 2022-23, and write off up to GBP70 million of energy debt for vulnerable customers. The company says it has not restarted warrant-based prepayment meter installations since suspending the practice in February 2023 and adds the settlement will not affect its 2026 financial guidance.

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Aberdeen Group PLC, up 2.5% at 231.60 pence, 12-month range 163.80p-232.80p. Citigroup raises its rating for the Edinburgh-based wealth and asset management firm to 'buy' from 'neutral', setting a price target of 265p, up from 225p.

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Grainger PLC, down 3.4% at 151.45 pence, 12-month range 150.30p-230.00p. Shares in the Newcastle-upon-Tyne, England-based residential landlord fall as Jefferies cuts its price target to 210p from 232p. Reiterates 'buy' recommendation.

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Grafton Group PLC, down 2.5% at 811.30 pence, 12-month range 800.80p-1,035.60p. Revenue in the first four months of 2026 rises 3.2% to GBP830.1 million from GBP804.4 million, while average daily like-for-like sales are broadly flat as growth in Iberia, Ireland and Northern Europe offsets weaker markets in Great Britain. The Dublin-based building materials distributor says it continues to manage supply chain risks linked to conflict in the Middle East, with no material disruption so far although inflationary pressures are evident. Grafton says disciplined cost control and margin management remain a focus, and now expects 2026 adjusted operating profit in the range of GBP190 million to GBP200 million, supported by the acquisitions of Ireland's Cygnum and Spain's Mercaluz.

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Unite Group PLC, down 1.6% at 473.80 pence, 12-month range 442.20p-874.50p. Says reservations for the 2026/27 academic year remain in line with expectations, with 79% of beds reserved compared with 80% a year before. The student accommodation provider says sales progress remains consistent with guidance for occupancy at the lower end of 93% to 96% and rental growth of 2% to 3%. Unite also says it is increasing disposal plans and exploring ways to accelerate its portfolio transition, which would release surplus capital for share buybacks or university partnerships. The company reiterates guidance for adjusted earnings per share of 41.5p to 43.0p for financial 2026. CEO Joe Lister says: "We are increasing our disposal plans and working with advisors to explore options to further accelerate our transition to a more focused, higher-quality portfolio. This will release surplus capital for reinvestment into share buybacks or university partnerships consistent with our capital allocation framework."

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By Eva Castanedo, Alliance News reporter

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