BOJ decision, China PMI, Australia inflation

Asia-Pacific markets were mixed on Wednesday as investors awaited the Bank of Japan’s rate decision and China’s business activity data.

Economists polled by Reuters expecting the bank to raise rates to 0.1%, though other analysts are expecting a larger hike. The BOJ’s benchmark interest rate currently is in a range of 0% to 0.1%.

Should the bank raise rates, this will mark the first time since 2010 that its benchmark interest rate stands firmly at 0.1% or higher.

Australia’s second-quarter inflation numbers are also in focus for clues on the Reserve Bank of Australia’s moves at its next monetary policy meeting on Aug. 6.

Overnight in the U.S., the S&P 500 was dragged lower by declines in megacap tech stocks, as investors braced for quarterly reports from names in that cohort. Traders also set their eyes on Washington as the Federal Reserve began its latest policy meeting.

Nvidia shares pulled back by 7%, while Microsoft shed about 0.9%. Tech-related giants Amazon, Netflix and Meta Platforms also declined.

The broad market index lost 0.5%, while the Nasdaq Composite tumbled 1.28%. In contrast, the Dow Jones Industrial Average climbed 0.5%.

—CNBC’s Pia Singh and Yun Li contributed to this report.