Global Stocks Rise Ahead of Big Tech Earnings as Oil Rally and Central Bank...

Global stocks rose on Wednesday as renewed enthusiasm for artificial intelligence lifted investor sentiment ahead of earnings from major technology companies, although weakness in European financial shares weighed on regional equities and rising oil prices renewed concerns about energy supply disruptions in the Middle East.

Investors are entering a pivotal 48-hour period featuring earnings from Microsoft and Alphabet, policy decisions from major central banks and developments in energy markets. The combination could determine whether the recent rally in technology stocks can extend further or whether concerns about the cost of AI investment, inflation and interest rates will prompt a reassessment of valuations.

MSCI's All-World index gained 0.2%, while US stock futures edged up between 0.1% and 0.4%. Asian equities performed more strongly, led by South Korea's Kospi, which surged 6% after blockbuster earnings from chipmaker SK Hynix reinforced optimism about demand for advanced memory chips used in AI infrastructure.

European markets moved in the opposite direction. The STOXX 600 fell 0.2%, pressured by declines in Banco Santander and UBS, while payments company Adyen plunged 12%.

The divergence highlights the uneven nature of the current market rally. Demand for AI-related hardware and infrastructure continues to support technology stocks, but investors are becoming more selective about companies whose valuations depend on delivering measurable returns from large capital commitments.

Microsoft and Alphabet are due to report results after the US market closes on Wednesday, placing their AI businesses at the center of investor attention. The companies' earnings will be scrutinized for evidence that spending on data centers, computing capacity and AI services is translating into sustainable revenue growth and improved profitability.

The scale of investment has raised the stakes. Technology companies have committed substantial resources to expanding computing infrastructure as they compete to develop and deploy more capable AI systems. Investors must now determine whether the resulting revenue opportunities can justify the associated costs, including the expense of acquiring advanced chips, securing electricity, and building data centers.

"Investors want to see how these two mega-cap tech stocks are monetizing their AI investments," said Kathleen Brooks, director at XTB.

She warned that the results could determine whether the technology and AI rally has further room to run, with signs of weak monetization or a slowdown in capital expenditure potentially having significant consequences for the sector.

The market faces a difficult balance. Continued increases in AI spending could reassure investors that demand remains strong, but they could also intensify concerns about returns on capital. Conversely, a reduction in expenditure might improve expectations for near-term cash flow while raising questions about whether technology companies are scaling back their ambitions or responding to weaker demand.

Recent funding announcements involving Meta, SpaceX and Broadcom have helped revive enthusiasm for AI-related stocks. Anthropic's filing for an initial public offering has also added to investor interest in the sector, offering another indication of the financing opportunities emerging around advanced AI development.

However, the growing flow of capital into AI does not guarantee that every company will benefit equally. Chris Brigati, chief investment officer at SWBC, said investors should distinguish between technology companies based on their prospects for future growth, rather than assuming that a rising market will lift all stocks.

The AI trade is broadening beyond chipmakers and cloud providers to include companies seeking to finance, build or commercialize AI infrastructure. Earnings and forward guidance will help investors separate businesses with credible paths to monetization from those whose valuations depend primarily on expectations of future demand.

Monetary policy is another major source of uncertainty. The Federal Reserve and Bank of Canada are scheduled to announce decisions later on Wednesday, while the European Central Bank and Bank of Japan are also among the major central banks investors are monitoring over the coming days.

The Fed is expected to leave interest rates unchanged, while markets anticipate a rate increase from the Bank of Canada. Analysts at JPMorgan said they expect at least two dissents among US policymakers, a development that could be interpreted as a hawkish signal if it reveals growing concern about inflation or the appropriate pace of future rate adjustments.

The Reserve Bank of New Zealand provided an early surprise by holding its policy rate at 2.75%, contrary to expectations for an increase. The decision followed a narrow vote and sent the New Zealand dollar down more than 1.2% to a session low of $0.5583, marking its largest daily decline in five months.

"Today's decision shows the RBNZ is willing to surprise markets, a reminder that central banks do not take orders from markets," said Carol Kong, a currency strategist at Commonwealth Bank of Australia.

The reaction illustrates the risks facing investors who have positioned portfolios around expected policy moves. Even when a decision leaves rates unchanged, differences between market expectations and central bank assessments can trigger sharp currency and bond-market adjustments.

In Britain, Finance Minister John Healey was preparing to deliver his first budget, with investors watching for measures that could reassure bondholders amid concerns about public finances and government borrowing. The pound edged down to $1.3293, while UK government bond yields rose two basis points to 5.363%. Despite the daily increase, gilt yields were on course for their first monthly decline since June, down seven basis points during October.

Israel's shekel fell 1% after exit polls indicated that the country's wartime election was deadlocked, adding another source of political uncertainty to currency markets.

Energy prices, meanwhile, moved higher after an attack on a refinery in Saudi Arabia, the world's largest crude exporter, renewed concerns about the security of Middle Eastern supplies. Brent crude futures rose 1.2% to $115.24 a barrel, while European natural gas futures climbed 1.1% to €97.08 per megawatt-hour, reaching a fresh four-year high.

The rise in oil and gas prices complicates the outlook for central banks. Higher energy costs can feed into headline inflation, increase operating expenses for businesses and weaken household purchasing power, potentially making it more difficult for policymakers to ease monetary conditions.

For equity investors, the combination results in competing forces. Strong AI earnings could sustain demand for technology shares, but persistent energy-price pressures and a more hawkish interpretation of central bank decisions could push borrowing costs higher and place pressure on valuations.