Asian stock markets advanced strongly Wednesday after the United States and Iran signaled a temporary halt to hostilities. Investors responded to the prospect of a tentative two-week ceasefire with outsized buying in technology names and other cyclical sectors, sending major indexes sharply higher.
Markets in Japan and South Korea led the regional rally, each rising by more than 5%. Strength in technology shares - notably memory chip manufacturers - was a primary driver of the gains after Samsung Electronics Co Ltd (KS:005930) forecast an eightfold increase in its first-quarter profit, reflecting robust demand linked to artificial intelligence. Samsung shares rose by over 6%, while peer SK Hynix Inc (KS:000660) rallied nearly 11%.
S&P 500 futures jumped more than 2% after U.S. President Donald Trump said on Tuesday evening that planned strikes on Iran would be postponed by two weeks, following diplomatic moves by Pakistan to ease tensions. Pakistani officials said both the U.S. and Iran had agreed to a ceasefire, and Islamabad offered to host in-person talks later this week as part of efforts to broker a diplomatic settlement.
Iran also indicated openness to ending hostilities and suggested that reopening the Strait of Hormuz could be possible if conditions allowed. Separately, Iran said it would cease military activities after the U.S. and Israel cease hostilities, according to statements relayed during the period of negotiations.
Broader Asian markets recorded notable gains. Mainland China’s Shanghai Shenzhen CSI 300 rose 2.3% and the Shanghai Composite climbed 1.4%, while Hong Kong’s Hang Seng added nearly 3%. Australia’s ASX 200 jumped 2.5%, and Singapore’s Straits Times index rose 0.9%. Futures for India’s Nifty 50 rallied more than 3%, with market participants also focused on an upcoming Reserve Bank of India meeting later in the day.
Energy market moves reinforced the positive mood in equities. Brent crude plunged over 13% to $94.97 a barrel after the ceasefire signals, easing a key source of investor concern and reducing a near-term risk premium that had weighed on markets.
The rally in Japan and South Korea was amplified by pronounced bargain hunting after both markets lagged peers in prior weeks. The KOSPI had been a notable laggard, having fallen nearly 20% in March, which prompted more aggressive buying when risk sentiment improved.
While the immediate market reaction has been strongly positive, the developments were described in terms used by officials and market participants as a tentative pause rather than a definitive resolution. The two-week timeframe for the pause announced by U.S. authorities and the diplomatic steps by Pakistan set the near-term tone for markets, but they also underline the provisional nature of the arrangement.
Overall, the combination of a possible ceasefire, a sharp drop in oil prices, and upbeat profit guidance from major chipmakers helped lift Asian equities across the region during the trading session.