Junior markets like Aim face decline due to low investor interest and relaxed regulations. The London Stock Exchange Group (LSEG) is streamlining rules to reduce costs and boost capital-raising. Aim’s listings dropped from 1,700 in 2007 to 605 today, with the FTSE all-Aim index flat over 10 years versus a 60% gain for the FTSE All-share. While Aim hosts successes like Fevertree Drinks and Asos, challenges persist. Relaxed rules risk exploitation, as seen with Sino-Forest, which collapsed after listing on a Canadian venture bourse. Globally, growth companies account for 4% of mainstream market value despite comprising a third of public firms, per an OECD report. VC funding in the UK surged to $92bn in the past decade, offering alternatives to public markets.

The decline reflects shifting capital dynamics. Junior exchanges, once vital for start-ups during the internet boom, now struggle with thin trading and volatility. LSEG’s reforms aim to address costs and governance gaps, but attracting fund managers and media remains difficult. Success stories are scarce compared to main markets, where companies like Tencent and Nvidia listed early.

Experts debate whether junior markets can adapt. The Pitch Book Data Inc data highlights VC’s rise, yet public markets remain a preferred exit for many. Hong Kong’s closure of its Growth Enterprise Market link in 2018 underscores regulatory risks. LSEG’s approach may offer a model, but long-term viability depends on balancing accessibility with safeguards against fraud.