European equities moved lower on Friday as disappointing technology earnings from major US companies intensified concerns about the financial cost of artificial intelligence infrastructure investment. Despite the decline, the STOXX 600 remained on course to record its strongest monthly performance since June.
The pan-European STOXX 600 fell 0.25%, extending a technology-led selloff that began following Alphabet’s (NASDAQ:GOOG) earnings announcement and deepened after financial updates from Amazon (NASDAQ:AMZN) and Intel (NASDAQ:INTC).
Germany’s DAX declined 0.4%, while France’s CAC 40 slipped 0.1%. London’s FTSE 100 outperformed, gaining 0.3% as its greater exposure to energy and other established industries provided support.
US Technology Earnings Highlight Rising AI Investment Costs
Concerns over the financial sustainability of artificial intelligence infrastructure spending intensified following earnings announcements from three major US technology companies.
Alphabet reported revenue below market expectations and a move into negative free cash flow, raising questions about the impact of its investment programme on cash generation.
Amazon reported negative free cash flow of $42.4 billion over the preceding 12 months, alongside third-quarter capital expenditure of $77.3 billion, more than double the amount recorded a year earlier.
The figures highlighted the substantial financial commitments associated with developing data centres and other AI infrastructure.
Intel added to negative sentiment after forecasting fourth-quarter revenue below analyst expectations, citing weaker demand in the personal computer market.
Together, the announcements increased investor concerns about the relationship between technology investment, borrowing requirements and future profitability.
European Semiconductor Stocks Fall More Than 4%
The selloff spread to European technology companies, particularly businesses exposed to semiconductor manufacturing and equipment demand.
ASML (EU:ASML), ASM International (EU:ASM), BE Semiconductor (EU:BESI) and Infineon (TG:IFX) each declined by more than 4%.
The losses reflected concerns that substantial investment in AI infrastructure could place pressure on technology companies’ financial resources while demand for some consumer electronic products remains subdued.
Higher prices for devices such as personal computers and smartphones have also raised questions about consumer demand.
Investors are increasingly assessing whether the expected returns from artificial intelligence investment will justify the scale of capital expenditure being undertaken by major technology companies.
AI Financing Concerns Extend to Global Bond Markets
The financial implications of AI infrastructure investment are also attracting attention from central banks and credit markets.
European Central Bank President Christine Lagarde said on Thursday that increased issuance of long-term bonds by major cloud computing companies was contributing to higher long-term borrowing costs globally.
Large technology companies have been increasing their use of debt financing to support the development of data centres and related infrastructure.
Barclays was also reported to be seeking credit default protection on more than $10 billion of debt associated with AI infrastructure.
These developments have heightened scrutiny of financing conditions across the technology sector.
Higher borrowing costs could affect companies undertaking large investment programmes, particularly if revenue growth or returns from AI infrastructure develop more slowly than anticipated.
STOXX 600 Remains on Course for Strong October Performance
Despite Friday’s decline, the STOXX 600 remained approximately 2.2% higher for October, putting the index on track for its strongest monthly performance since June.
European equities have benefited from their greater exposure to energy, defence and banking companies compared with US markets, where major technology stocks account for a larger share of benchmark indices.
However, October has been marked by considerable volatility.
The STOXX 600 fell to 625.5 points on 8 October amid concerns about debt-financed AI investment and rising bond yields.
The US 10-year Treasury yield had approached 5.36% the previous day, while French government bond yields rose above 5% amid domestic political unrest.
Higher oil prices also contributed to inflation concerns, with crude reaching a five-month high during the month.
These developments placed pressure on equity valuations and contributed to the index’s sharpest weekly decline since early September.
Corporate Earnings Provide Support Despite Market Volatility
Third-quarter corporate earnings have helped offset some of the pressure from higher borrowing costs and geopolitical uncertainty.
Although the reporting season began unevenly, including significant share price declines among luxury companies such as Kering, aggregate earnings expectations have improved.
According to LSEG data, STOXX 600 companies are on course to report third-quarter earnings growth of 23.6%, which would represent the second-strongest quarterly performance since 2022.
Energy companies have made a substantial contribution, with sector earnings expected to increase 139%.
Excluding energy, earnings growth is forecast at 9.8%, indicating a more moderate improvement across the remaining sectors.
The figures highlight the importance of energy producers in supporting European corporate profitability during a period of elevated commodity prices.
ECB Interest Rate Outlook Adds to Market Uncertainty
Monetary policy remains another important influence on European equities.
The European Central Bank maintained its deposit rate at 2.50% on Thursday, with economists interpreting the decision as a cautious pause that left open the possibility of further tightening.
Financial markets were pricing approximately a two-thirds probability of an interest rate increase in December.
The ECB also indicated that it had instruments available to respond to disorderly financial market conditions.
Earlier on Thursday, Lagarde announced plans to step down in February 2027, nine months before the scheduled conclusion of her term.
Investors will continue to monitor central bank policy, government bond yields and corporate financing conditions alongside developments in technology spending.
While European equities remain on course for a positive October, concerns over AI investment costs, inflation and borrowing rates could continue to influence market performance.
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