Global stocks experienced a decline as Brent crude oil neared $100 a barrel, intensifying concerns that central banks may need to raise interest rates further to control inflation. This market reaction occurred ahead of key inflation data expected later in the week. Money markets indicated over a 50% chance of a Federal Reserve rate increase this month.

The S&P 500 fell for a second consecutive session despite a rally among major chipmakers. The Dow Jones Industrial Average dropped 1.21% in early trading, while the S&P 500 dropped 0.49% and the Nasdaq Composite fell 0.52%. European and Asian stocks also showed weakness. The rise in oil prices was triggered by Saudi Arabia's announcement that operations at several energy facilities in its southern region were halted due to attacks, pushing Brent crude to $98.25 a barrel.

Adding to inflationary pressures, copper hit a record high for the second straight session, driven by constrained near-term supplies and anticipated US tariffs on refined metal imports. The yen strengthened by as much as 1% against the dollar, reaching below 154, supported by expectations of more restrictive Bank of Japan policy. Analysts like Anastasia Amoroso at Partners Group suggested a period of market digestion as central bank policies globally undergo significant adjustments, potentially leading to some consolidation or a give-back of recent gains.