US futures and Asian stocks advance following a rally on Wall Street

Asian stocks experienced a generally positive trend on Tuesday following an AI-driven rally on Wall Street, ahead of important corporate earnings announcements and central-bank decisions. South Korea's Kospi rose by more than 4%, reaching 5,667.99 by midday, while computer chipmaker SK Hynix surged 7% and Samsung Electronics gained 4.8%.

Tokyo's Nikkei 225 increased by 2.2% to 63,542.77. Testing equipment manufacturer Advantest jumped over 10%, and OpenAI investor SoftBank Group climbed 7%. However, Hong Kong's Hang Seng fell by 0.2% to 23,174.44, and the Shanghai Composite edged down by 0.1% to 3,692.58. Traders were monitoring China's ruling Communist Party's closed-door high-level meeting, or plenum, for potential major announcements.

In Australia, the S&P/ASX 200 rose 0.3% to 8,838.10. The S&P 500, Dow Jones Industrial Average, and Nasdaq composite also saw gains on Monday, with the strongest lift coming from Nvidia, which increased by 2.4%. This helped the chip company recover from its losses over three consecutive losing weeks. However, stocks within the artificial-intelligence sector remained volatile due to concerns about the industry's boom being threatened by the high cost of borrowing for data centers and AI chips.

Meta Platforms saw fluctuations after revealing plans to raise $35 billion through stock sales to fund its AI initiatives. It also announced that Nvidia, Advanced Micro Devices, and Broadcom might invest a total of $5 billion in its offering. Anthropic, a key player in the AI boom, disclosed its financial situation on Monday, revealing it is losing money as it prepares to sell stock on the U.S. market for the first time.

SpaceX, Elon Musk’s rocket company, and its xAI business also experienced similar fluctuations following a $40 billion deal with an Apollo Global Management-managed entity to lease AI computing power. Upcoming profit reports from major tech companies, including Alphabet, Microsoft, and Amazon, could provide further insights into the progress and profitability of AI spending.

Meanwhile, Brazilian stocks dropped significantly after President Luiz Inácio Lula da Silva's surprising reelection, raising concerns about potential increased government spending and debt pressure. U.S. bond yields fell for longer-term Treasurys, with the 10-year Treasury yield easing to 4.98% from 5.00% and the two-year yield rising to 4.71% from 4.69%.

The Federal Reserve is expected to conclude its meeting on Wednesday without changing the federal funds rate, as widespread expectations suggest. In other developments, Brent crude oil prices fell 0.8% to $109.82 a barrel, while U.S. benchmark crude dropped 0.8% to $100.93 per barrel. The U.S. dollar strengthened to 157.65 Japanese yen from 157.50 yen, and the euro decreased to $1.1173 from $1.1176.