21st Apr 2026 11:33
(Alliance News) - The following are the leading risers and fallers among London Main Market small-cap and AIM stocks on Tuesday.
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Main Market small-cap winners
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capAI PLC, up 67% at 1.15p, hails outlook
Cloudbreak Discovery PLC, up 44% at 0.575p
Quantum Data Energy PLC, up 28% at 4.8p
Nostrum Oil & Gas PLC, up 27% at 1.65p
BSF Enterprise PLC, up 21% at 2.125p
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Main Market small-cap losers
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Crest Nicholson Holdings Ltd, down 39% at 65.7p, cuts guidance
Digital 9 Infrastructure PLC, down 10% at 4.925p
GSTechnologies Ltd, down 8.5% at 0.215p
Boston International Holdings PLC, down 7.7% at 0.3p
Synthomer PLC, down 6.1% at 48.825p
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AIM winners
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Clean Power Hydrogen PLC, up 28% at 11.5p
Seeen PLC, up 13% at 4.5p, announces acquisition
ITM Power PLC, up 11% at 140.65p
Intercede Group PLC, up 11% at 97.5p, wins new orders
CRISM Therapeutics Corp, up 11% at 13p
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AIM losers
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Mercantile Ports & Logistics Ltd, down 62% at 0.775p, vows to pursue all legal options to regain control of Karanja Terminal & Logistics asset
Tern PLC, down 20% at 0.6p, announces open offer to raise GBP643,609
Trellus Health PLC, down 20% at 0.14p
PACSCo Ltd, down 14% at 0.3p
Catenai PLC, down 13% at 0.24p
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Small-cap and AIM movers in focus:
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CapAI, up 67% at 1.15p, 12-month range 0.35p-9.38p. The firm, focused on artificial intelligence systems for media and medicine, says it is "entering a key inflection point". CapAI reports "multiple products" are moving to user availability from the development stage. "The CapAI board believes that the transition of multiple platforms into live availability, combined with a growing pipeline of opportunities under evaluation, positions capAI for its next phase of growth. The company remains focused on disciplined execution, capital efficiency and the selective advancement of high-potential initiatives," it adds.
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Crest Nicholson Holdings Ltd, down 39% at 65.7p, 12-month range 59.70p-198.50p. The housebuilder lowers sales and profit expectations for the current financial year and warned of higher debt than forecast. The firm says it is acting "quickly and decisively" to prioritise cash and balance sheet strength whilst the uncertainty caused by the Middle East crisis persists. It reports a reduction in new enquiries and visitor levels since its last update in March, a "marked" softening in sentiment among prospective land purchasers and that buyers have become more cautious.
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Mpac Group PLC, down 12% at 228.00p, 12-month range 222.60p-495.00p. The packaging firm reports a swing to a 2025 pretax loss of GBP7.7 million, from profit of GBP3.4 million. In addition, Chief Financial Officer Will Wilkins is to leave the position in July, to join Ibstock. Duncan Tyler, corporate development director, is to take on the role of interim CFO.
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Nichols PLC, up 4.1% at 966.04 pence, 12-month range 880.00p-1,480.00p. The soft drinks company says revenue in the three months to March 31 climbed 4.3% on-year to GBP41.0 million. It is "an encouraging start to the year in-line with the board's expectations," the firm says ahead of its annual general meeting on Tuesday.
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Mears Group PLC, up 2.0% at 386.00 pence, 12-month range 310.00p-421.37p. The provider of housing and social care wins a new long-term contract with Moat Homes valued at over GBP200 million over an initial 10-years. "The contract will see Mears deliver responsive and void maintenance and planned works to around 20,000 homes across the South‑East of England and includes an option to extend for a further five years," Mears adds.
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By Eric Cunha, Alliance News news editor
Comments and questions to [email protected]
Copyright 2026 Alliance News Ltd. All Rights Reserved.
Related Shares:
Clean Power HydItm PowerIntercedeSeeenCrism TheraCapaiMpac Group PlcCloudbreakQuantum DataNostrum Oil&gasBio-Sustainable Future EnterprisesCrest NicholsonDigital 9GSTechnologiesSynthomerBoston IntMercantile Ports & LogisticsTrellus Health.TernPacsco LimitedCatenai Plc