AIM UNDER PRESSURE: CHALLENGES, COMPETITION & SHOOTS OF HOPE


7 August '25

4 minute read

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The Alternative Investment Market (AIM), long considered a launchpad for high-growth UK businesses, is facing a pivotal moment.  

Once a beacon for innovation and entrepreneurial ambition, AIM is now grappling with a complex mix of economic pressures, regulatory burdens and shifting investor sentiment. Yet, despite the headwinds, there are many signs of resilience and reasons to remain optimistic about its future. 

THE COST OF STAYING LISTED

One of the most significant deterrents for companies considering or maintaining a listing on AIM is the cost. Initial listing expenses hover around £600,000, with ongoing annual costs of approximately £500,000 

These figures are daunting, particularly for smaller or early-stage businesses. Add to this the extensive regulatory requirements and red tape, and it’s easy to see why many firms are opting for alternative funding routes. 

A TOUGH ECONOMIC BACKDROP

The UK’s economic performance in recent years has done little to bolster confidence. A sluggish economy, coupled with inflationary pressures and geopolitical uncertainty, has made it harder for AIM listed companies to thrive. For some, delisting has become a strategic necessity – rather than a choice. 

RISING COMPETITION FROM PRIVATE EQUITY & ABROAD

Private equity (PE) has emerged as a formidable competitor. Offering instant capital without the regulatory overhead, PE is an increasingly attractive option for high-growth businesses. Moreover, European markets are proving to be more cost-effective and flexible, drawing companies away from AIM and further intensifying the competition.

POLICY SHIFTS & PUBLIC ENGAGEMENT

Recent changes to inheritance tax (IHT) relief on AIM shares have also dampened investor enthusiasm. The government’s decision to halve IHT relief removed a key incentive for many investors, particularly those focused on long-term wealth planning. 

Compounding the issue is the lack of retail investor engagement in the UK. While around 60% of Americans actively invest in the stock market, only 25% of Britons do the same. This disparity limits the domestic capital pool and reduces the vibrancy of the UK’s public markets. 

SHOOTS OF HOPE

Despite these challenges, AIM is not without its bright spots: 

  • Market Performance: In Q3 of this year, AIM outperformed several major indices, including the NASDAQ. This resurgence has been accompanied by a noticeable uptick in IPO activity compared to 2024. 
  • Valuation Corrections: The recent wave of delistings may actually signal strength. Many of these businesses are fundamentally sound but mispriced, suggesting that the market is undergoing a healthy correction that could lead to more realistic and attractive valuations. 
  • Economic Contribution: AIM remains a vital part of the UK economy, supporting nearly a million jobs and contributing over £35 billion to GDP. Its role in fostering innovation and entrepreneurship cannot be overstated. 
  • Sectoral Strength: AIM continues to be a hub for biotech, tech and clean energy – industries with global relevance and long-term growth potential. The market’s structure is uniquely suited to help these businesses scale and innovate.

WHAT’S NEXT FOR AIM?

While AIM faces undeniable challenges, it’s far from obsolete. With the right policy support, improved investor engagement and continued focus on innovation, AIM can reclaim its position as a dynamic and essential part of the UK’s financial ecosystem. 

The road ahead may be bumpy, but for those willing to navigate it, AIM still offers a compelling journey. 

If you’re an AIM listed company, CP’s AIM team can support you with financial reporting, sustainability, controls and assurance projects, as well as statutory audit. 

To find out more, get in touch today.  

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