CNBC's UK Exchange newsletter: Rightmove’s AI gamble is a cautionary tale for UK investors

Rightmove's stock experienced a 12.5% decline after the company announced increased AI investment would slow its 2026 underlying operating profit growth to 3-5% from a projected 9% this year, reflecting UK investors' caution towards long-term AI strategies impacting near-term profitability. This market reaction, despite a subsequent rally, underscores a broader trend where British firms lag international counterparts in AI investment and adoption, often prioritizing cost-cutting over growth-oriented applications due to upfront costs and skill shortages, contrasting with successful examples like Autotrader.

Analysis

Rightmove's stock experienced a significant 12.5% decline following its announcement to accelerate AI investments, projecting a slowdown in 2026 underlying operating profit growth to 3-5% from an anticipated 9% this year. This sharp correction, which initially saw shares fall 28%, underscores a divergence in investor appetite for long-term strategic investments, particularly in AI, between UK and US markets. UK investors, historically cautious of "jam tomorrow" strategies, reacted negatively to the short-term profit sacrifice.

The market's reaction to Rightmove highlights a broader challenge within the UK corporate landscape regarding AI adoption and investment. While nearly half of FTSE-100 companies mention AI in their strategy, average AI investment by UK firms (£15.94 million) significantly lags behind US (£27.46 million) and Chinese (£31.59 million) counterparts. This disparity is attributed to high upfront costs and a notable skill shortage, with only 34% of FTSE-100 companies referencing AI training.

The cautious UK investor sentiment and underinvestment in AI could lead to British firms losing market share to international competitors, as warned by Matt Clifford. Most UK AI implementation currently focuses on productivity and cost reduction, rather than growth-oriented innovations. However, companies like Autotrader demonstrate successful AI integration for expanding services and enhancing customer experience, suggesting a viable path for growth-focused AI deployment.

Key Decisions for Investors

• Investors should closely monitor UK companies' AI investment strategies, distinguishing between those prioritizing short-term cost efficiencies and those pursuing long-term, growth-oriented innovation.
• Evaluate the long-term value proposition of strategic AI investments, considering potential market share gains and competitive advantages, rather than reacting solely to immediate impacts on short-term profitability guidance.
• Identify UK firms that are successfully integrating AI for growth and enhanced customer experience, like Autotrader, as these may offer stronger long-term prospects compared to those lagging in adoption or skill development.
• Consider the potential for a shift in UK investor sentiment towards AI investments, especially if successful growth-oriented implementations become more prevalent and demonstrate clear ROI.