Global stocks experienced a decline as Brent crude oil prices neared $100 a barrel, fueling concerns among investors that central banks would be compelled to raise interest rates further to combat inflation. Despite a rally in high-profile chipmakers, the S&P 500 fell for a second consecutive session. Money markets indicated a greater than 50% chance of a Federal Reserve rate increase this month.

The yen, however, surged to its strongest level since February, extending Monday's rally, largely due to increasing expectations of an interest rate hike by the Bank of Japan next week. The currency rose as much as 1% to 152.89 per dollar, following a 1.2% appreciation on Monday, and has strengthened over 4% against the dollar this month, making it the best performer among Group-of-10 currencies. This rally was initially spurred by intervention from Treasury Secretary Scott Bessent and Finance Minister Satsuki Katayama.

Oil prices continued their ascent, with Brent crude gaining 0.5% to $97.46 per barrel, driven by an Iranian deal with Oman regarding shipping through the Strait of Hormuz and strong Chinese demand. Attacks on Saudi Arabian energy facilities also contributed to the price rise, with Brent briefly approaching $100 a barrel. This increase in energy prices intensified inflation concerns, prompting analysts like Anastasia Amoroso, chief investment strategist at Partners Group, to suggest that global stocks might face a period of consolidation as central banks face pressure to raise rates.

Despite the broader market downturn, the technology sector showed resilience. The MSCI Asia Pacific Index climbed 0.3%, significantly boosted by South Korean chipmakers SK Hynix Inc. and Samsung Electronics Co., leading Korea's Kospi Index to rise by 2.4%. Futures contracts on the tech-heavy Nasdaq 100 Index also gained 0.6%. HSBC's Willem Sells noted that US stock valuations for major AI players are still undervalued, with investors skeptical of even 2027 earnings growth projections for chip stocks.