Asian Stocks Slide as BOJ Rate Signals and Middle East Tensions Weigh on Markets

Japanese Markets Lead Regional Declines

Japanese stocks were the worst performers in Asia, with the Nikkei 225 and TOPIX indexes each dropping more than 3%. The sell-off followed comments from BOJ Governor Kazuo Ueda, who told parliament that the central bank was closely monitoring movements in the yen and rising import costs stemming from the weak currency.

Ueda indicated that such dynamics could lead to additional interest rate hikes and said the BOJ would “guide policy appropriately” by scrutinizing currency moves and their impact on the broader economy. The prospect of tighter monetary policy added to risk aversion in a session already marked by geopolitical concerns and profit-taking.

S&P 500 Futures edged lower as of 23:43 ET (03:43 GMT), reflecting a weak lead from Wall Street’s Friday session. Markets took some relief after President Donald Trump said talks with Iran were going well, although no clear details were provided.

Tech Stocks Under Pressure Amid AI Concerns

Technology shares across Asia declined, tracking recent losses in U.S. counterparts. The tech-heavy KOSPI in South Korea fell about 3%, while Hong Kong’s Hang Seng index slipped around 1%.

South Korean memory chip makers were notably weaker. Samsung Electronics declined 2.5% and SK Hynix dropped 4.8%, extending steep losses from the previous week. The moves followed Google’s unveiling of a new compression algorithm, which has raised uncertainty over long-term artificial intelligence-related demand for memory.

Beyond technology, broader Asian markets remained weighed down by the Iran war and related regional tensions. Trump stated that talks were ongoing and that a deal could be close, but without providing specific guidance. Hostilities expanded over the weekend after the Yemen-based, Iran-backed Houthi group attacked Israel.

Oil prices continued to push higher on Monday, heightening concerns about energy-driven inflation and potential economic disruption. Elsewhere in the region, China’s Shanghai Composite traded in a tight range, while Australia’s ASX 200 and India’s Nifty 50 each fell 0.8% in morning trade.

FAQ

Why did Japanese stocks fall more than other Asian markets?
Japanese stocks led regional losses after BOJ Governor Kazuo Ueda signaled that rising import costs from a weak yen could lead to further interest rate hikes, increasing concerns about tighter monetary policy.

What factors weighed on Asian technology stocks?
Asian tech stocks declined due to profit-taking, recent weakness in U.S. tech shares, and concerns over artificial intelligence demand, particularly after Google unveiled a new compression algorithm affecting sentiment toward memory chip demand.

How did Middle East tensions affect Asian markets?
Escalating hostilities related to the U.S.-Israel war on Iran, including an attack on Israel by the Yemen-based, Iran-backed Houthi group, added to market uncertainty, pushed oil prices higher, and intensified concerns about inflation and economic disruption.

Which major Asian indices declined and by how much?
Japan’s Nikkei 225 and TOPIX each fell over 3%, South Korea’s KOSPI dropped about 3%, Hong Kong’s Hang Seng lost around 1%, and both Australia’s ASX 200 and India’s Nifty 50 declined 0.8% in morning trade.