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Highlights
Reports of an Iran-Israel ceasefire pulled oil lower and rekindled appetite for risk assets, favouring London's growth-oriented shares.
The artificial intelligence investment boom continues to drive sentiment towards UK names with credible exposure, from Sage (LSE:SGE) to Segro (LSE:SGRO).
Rolls-Royce (LSE:RR.) remains a flagship of London's growth revival, with its power and propulsion story tied increasingly to the energy demands of computing.
Growth investing in London has often felt like supporting a lower-league football club: passionate, occasionally rewarding, frequently character-building. But the mood has shifted. With reports of an Iran-Israel ceasefire pulling oil prices lower and reviving global risk appetite, the racier end of the UK market found its stride in the latest session. Add an artificial intelligence investment boom that refuses to cool, and suddenly the City's growth names, long overshadowed by their American cousins, are enjoying a moment of genuine momentum.
Why did risk appetite suddenly improve?
Geopolitics set the tone. News reports suggesting a ceasefire between Iran and Israel eased one of the market's most persistent anxieties, and the relief showed up exactly where textbooks predict: oil retreated, defensive positioning unwound, and capital rotated towards assets that thrive on confidence. Growth stocks, whose valuations rest on profits expected far in the future, are the natural beneficiaries of that shift, because a calmer world makes those distant earnings feel less hypothetical.
The backdrop helped too. The blue-chip index has been choppy of late, slipping to a multi-week low before recovering towards record territory, while the mid-cap benchmark pressed towards a multi-month high. A market that refuses to stay down is precisely the environment in which investors feel emboldened to reach further along the risk spectrum.
Which growth names led the charge?
Rolls-Royce (LSE:RR.) remains the emblem of London's growth renaissance. The aerospace and power group has transformed itself from a pandemic-era casualty into one of the market's most-watched stories, with civil aviation demand recovering and its small modular reactor ambitions positioning it for a world hungry for clean, reliable electricity. Every fresh headline about the energy appetite of artificial intelligence computing adds another strand to the investment case.
Software and data names rode the same current. Sage Group (LSE:SGE) has been weaving artificial intelligence assistants into its accounting products for small businesses, while RELX (LSE:REL) and London Stock Exchange Group (LSE:LSEG) continue to monetise the data and analytics that machine learning models devour. Experian (LSE:EXPN) brings a similar flavour, applying advanced analytics to credit information at global scale. None of these are speculative moonshots; they are established businesses whose growth credentials have been burnished by the technology cycle.
How is the AI boom reshaping the property and infrastructure trade?
Perhaps the most distinctive British angle on the artificial intelligence story comes from an unexpected quarter: industrial property. Segro (LSE:SGRO) has secured planning approval for a substantial data centre facility in west London, positioning the warehouse landlord as a critical supplier of the physical space the computing boom requires. The pivot reframes a steady property company as an infrastructure play on the digital economy, and the market has taken notice.
The theme extends through the supply chain. National demand for grid connections, cooling and power management touches engineers and equipment specialists across the market, from Halma (LSE:HLMA) with its safety and sensor technologies to the IT resellers Softcat (LSE:SCT) and Computacenter (LSE:CCC), which channel enterprise spending on hardware and cloud services. The lesson is that AI exposure in London rarely comes labelled as such; it hides inside property, engineering and distribution businesses.
What role do investment trusts play in the growth revival?
For many UK investors, the purest expression of the growth trade is found in listed investment trusts. Scottish Mortgage Investment Trust (LSE:SMT) offers exposure to global disruptors public and private, while Polar Capital Technology Trust (LSE:PCT) and Allianz Technology Trust (LSE:ATT) concentrate on the technology giants driving the artificial intelligence cycle. When risk appetite improves, these vehicles often respond before the wider market, and their discounts and premiums to asset value serve as a real-time gauge of sentiment towards growth as a style.
Their recent firmness tells its own story. After a bruising stretch when rising rates punished long-duration assets, the trusts have steadied alongside the broader recovery in growth investing, suggesting that domestic investors are gradually re-engaging with the style they abandoned during the inflation shock.
Growth stocks in the UK market are companies whose revenues and earnings are expanding faster than the market average, and whose valuations typically embed expectations of continued above-average expansion. Under the FTSE industry classification framework they cluster in software and computer services, technology hardware, aerospace and defence, media and data services, and industrial support services, with representation across the FTSE 100, FTSE 250 and the AIM market. Common characteristics include reinvestment of cash flow into expansion, relatively modest dividend distributions and heightened sensitivity to interest rate expectations. The category describes financial and sector traits rather than any judgement about future returns.
Can London's growth cohort keep pace with global peers?
The honest answer is that London plays a different game. The UK market lacks the mega-cap platform companies that dominate American indices, and no amount of wishing will conjure them. What it offers instead is a collection of niche champions, aerospace engines, accounting software, scientific instruments, data analytics, specialist property, trading at valuations that look restrained beside their international counterparts. That gap is the growth-stock cousin of the broader UK discount, and it cuts both ways: less spectacular in euphoric phases, less precarious when sentiment turns.
The recent resilience of the FTSE 100 during bouts of global technology volatility illustrates the trade-off. London's growth names sit within a market ballasted by banks, miners and energy, which dampens both the booms and the busts. For investors seeking growth with a margin of composure, that profile has begun to look less like a consolation prize and more like a feature.
What could interrupt the momentum?
Growth investing is a hostage to expectations, and expectations are currently lofty. Any disappointment in the artificial intelligence capital spending cycle would ripple through every name attached to the theme, from data centre landlords to software vendors. Interest rates remain the other live risk: traders have been scaling back bets on imminent cuts, and a sustained higher-for-longer environment mechanically pressures the valuations of long-duration assets. Geopolitics, having given with the ceasefire reports, could just as easily take away. For now, though, the mood across London's growth cohort is the brightest it has been in a long while, and the session's action reflected exactly that.
