WINNERS & LOSERS: Hamak jumps on gold data; MicroSalt cuts sales guide

Thu, 28th May 2026 10:52

(Alliance News) - The following are the leading risers and fallers among London Main Market small-cap and AIM stocks on Thursday.

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Main Market small-cap winners

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Hamak Strategy Ltd, up 31% at 0.95 pence, finds "exceptional gold grades" in Ghana

Red Capital PLC, up 28% at 50.00p, appoints new CEO on Wednesday

Ecofin US Renewables Infrastructure Trust PLC, up 12% at 13.40p

Amigo Resources PLC, up 10% at 2.75p

capAI PLC, up 9.4% at 0.76p

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Main Market small-cap losers

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DeFi Development Corp UK PLC, down 20% at 23.00p

Nanoco Group PLC, down 11% at 3.01p, continues to fall on plan to delist shares

African Pioneer PLC, down 11% at 0.98p

Alkemy Capital Investments PLC, down 10% at 280.00p, full-year pretax loss widens

Georgina Energy PLC, down 7.7% at 5.40p

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AIM winners

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Premier African Minerals Ltd, up 22% at 0.02p

Geo Exploration Ltd, up 19% at 0.13p

Proteome Sciences PLC, up 16% at 1.85p

CML Microsystems PLC, up 8.7% at 375.00p

OptiBiotix Health PLC, up 8.7% at 6.25p, reports higher revenue for 2025

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AIM losers

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Mothercare PLC, down 16% at 0.75p

Distil PLC, down 16% at 0.04p

Ethernity Networks Ltd, down 13% at 0.0014p

MicroSalt PLC, down 10% at 43.00p, lowers sales guidance

Mercantile Ports & Logistics Ltd, down 7.9% at 1.75p

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Small-cap and AIM movers in focus:

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Hamak Strategy Ltd, up 31% at 0.95 pence, 12-month range 0.40p-7.50p. The Africa-focused gold explorer reports "exceptional gold grades" from testing at the Akoko gold project in southwest Ghana. Drilling intercepts included 21.40 grams per tonne over 2 metres from 27 meters depth. "We are thrilled to see such exceptional gold grades and wide intersections from the processing of historical drilling data," says Chief Executive Officer Karl Smithson.

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Red Capital PLC, up 28% at 50.00p, 12-month range 9.50p-55.00p. On Wednesday, the Jersey-based acquisition company says Scott Gilbert takes over as chair, replacing David Williams, who moves to non-executive director. Greig Gilbert is now CEO. Additionally, Simon Webster steps down from his role as non-executive director. Red Capital says Williams will continue to work with the company to deliver its new Venezuelan energy strategy.

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Alkemy Capital Investments PLC, down 10% at 280.00p, 12-month range 126.23p-468.30p. The critical minerals-focused investor says its pretax loss widens to GBP2.5 million in the 12 months to the end of January from GBP1.4 million a year earlier. The basic and diluted loss per share widens to 25.27p from 16.18p. It notes "significant progress" at its principal asset, Tees Valley Lithium Ltd. "Looking ahead, the board's focus remains on advancing TVL through construction and into commercial production. Key priorities over the coming year include financing workstreams, continued development of strategic supply and customer partnerships, finalisation of major project contracts and conclusion of planning activities," says Chair Paul Atherley.

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OptiBiotix Health PLC, up 8.7% at 6.25p, 12-month range 4.62p-15.50p. The York, England-based life sciences firm says revenue from contracts with customers rises 34% to GBP1.2 million in 2025 from GBP870,000 in 2024. This does not include GBP212,000 of orders received in 2025 and carried forward to 2026. The pretax loss widens to GBP3.9 million from GBP1.9 million, as administrative expenses increase to GBP3.7 million from GBP2.6 million. OptiBiotix says it receives GBP800,000 orders in January 2026 for delivery during 2026, in a "record start". "The company is now focused on achieving commercial sustainability by accelerating its activities to reduce costs and improve margins whilst continuing to grow its top line in those areas showing high growth and commercialising its second-generation products," says Chief Executive Officer Stephen O'Hara.

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MicroSalt PLC, down 10% at 43.00p, 12-month range 41.20p-87.00p. The London-based provider of low-sodium salt products lowers its 2026 sales guidance to USD4.5 million from previous guidance of USD7.0 million in November. "This adjustment reflects the anticipated production timing associated with the 2027 launch schedule, rather than any change in the underlying demand outlook," MicroSalt notes. It reaffirms its 2027 sales estimate of USD15 million. For 2025, MicroSalt says its pretax loss narrows to USD3.5 million from USD6.1 million a year prior. Revenue more than doubles to USD2.1 million from USD750,000. "MicroSalt's strong progress is clearly demonstrated by the significant revenue growth achieved during 2025, momentum that we expect to accelerate further throughout 2026, 2027, and beyond. The successful reformulation work completed with several of the world's leading snack food brands provides the company with increasing confidence in long-term revenue and commercial expansion," says Chief Executive Officer Rick Guiney.

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By Michael Hennessey, Alliance News reporter

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