Corporate governance and takeover politics dominated a session that also saw one of AIM's smaller consumer-chemicals names deliver the standout number of the day. Itaconix's upgraded revenue guidance set the tone at the top of the market, while boardroom drama at Alumasc and a rebuffed bid approach at System1 Group gave the digest its sharpest edges. Resource explorers Total Graphite and Arkle Resources moved in opposite directions on operational news out of Madagascar and Namibia respectively.
Itaconix upgrades guidance on record H1
Itaconix (ITX) now expects full-year revenue of at least $14.8 million, ahead of prior analyst forecasts, after first-half sales grew 72% year-on-year to a record level. The upgrade drove shares up 21.66% to 142.95p, making it the day's standout small-cap mover on the back of demonstrable trading momentum rather than speculation.
System1 rebuffs Brave Bison's revised takeover approach again
System1 Group (SYS1)'s board has reiterated its unanimous rejection of Brave Bison's revised takeover proposal, arguing the offer undervalues a business that is reporting record second-half revenue. Shares slipped 1.54% to 320.0p as the standoff between the two media groups continues, with System1's directors betting that underlying trading momentum will do more for shareholder value than a deal at the current terms.
Alumasc suspends CEO pending misconduct investigation
Alumasc Group (ALU) has suspended chief executive Pamela Bingham while it investigates matters relating to her professional conduct, a governance shock that sent shares down 8.34% to 210.82p. The building products group has not detailed the nature of the allegations, leaving investors to weigh the leadership vacuum against the underlying business until the probe concludes.
Total Graphite pauses Vatomina output for optimisation drive
Total Graphite (TGR) has suspended production at its Vatomina mine in Madagascar while it pursues additional drilling and technical optimisation work, targeting a restart at above 1,000 tonnes a month from December. The pause weighed heavily on sentiment, with shares falling 21.43% to 0.825p as the market digested the near-term revenue gap against the longer-term case for higher throughput.
Arkle expands Namibia uranium drilling after carnotite sightings
Arkle Resources (ARK) has widened its maiden drilling programme at the Erongo project in Namibia after visually logging the uranium mineral carnotite in three holes, a discovery that has brought forward testing of its primary ULG target. Shares edged up 1.33% to 0.76p as the company builds out the scope of an exploration campaign now generating tangible mineralisation evidence.
Metir signs water tech MoU with Portsmouth Aviation
Metir (MET) has agreed a non-binding tie-up with Portsmouth Aviation to pair its Microtox water monitoring technology with the latter's PaquaVida purification platform, targeting demand from Gulf water infrastructure projects. The announcement did little to lift sentiment on the day, with shares down 5.17% to 0.7349p, though the partnership opens a potential new commercial channel for the group's monitoring systems.
Smiths News secures long-term deals with Frontline and Seymour
Smiths News (SNWS) has locked in long-term distribution contracts with Frontline and Seymour, news that chief executive Jonathan Bunting said "continue to reinforce the importance of the printed magazine market which our business model has successfully evolved to support." Shares rose 3.85% to 69.58p as the contract renewals underpinned confidence in the durability of the group's core distribution franchise.
Thalia eyes miRisten data and Sanmirna integration as next milestones
Thalia Therapeutics (THAT) told its AGM that funding is secured across its RNA therapeutics portfolio, with Phase 1 topline data for miRisten due in the first half of 2027. Shares fell 7.69% to 0.6p despite the reassurance on funding, as investors look for nearer-term catalysts from the pipeline update.
Amigo Resources appoints Nathan Boom as chief executive
Amigo Resources (AMGO) has named Nathan Boom as chief executive, with Nicholas Beal stepping back from the top role to focus solely on his duties as Executive Director and Company Secretary. Shares dipped 2.75% to 1.945p as the leadership reshuffle takes effect.
Fulcrum Metals advances Teck-Hughes pilot plant plans
Fulcrum Metals (FMET) is progressing pilot plant plans at its Teck-Hughes project, with the company noting that interest from a specialist royalty provider "represents an important third-party validation of both the project and its commercial potential," according to Smith. Shares rose 6.25% to 8.5p as the prospect of royalty financing added credibility to the project's development path.
Tekcapital's Vesari adds geothermal scientist to advisory board
Tekcapital (TEK)-backed AI-compute developer Vesari has appointed Dr. Joseph N. Moore, a veteran leader of the US Department of Energy's flagship enhanced-geothermal research programme, to its newly formed Science Advisory Board. Tekcapital shares slipped 1.2% to 4.1p, with the appointment aimed at strengthening the technical credibility of Vesari's geothermal-linked compute ambitions.
