Sydney, May 30, 2026, 19:36 (AEST)
- ASX 200 finished Friday 1.6% higher at 8,731.70, the strongest daily gain in seven weeks.
- The benchmark added around 0.9% this week and 0.8% for May, even with a sharp drop on Thursday.
- GDP, trade numbers, and RBA talk have all been overtaken by a larger risk now: the fate of the U.S.-Iran truce plan.
ASX posts biggest gain in seven weeks as U.S.-Iran truce talk lifts mood Australia’s share market closed for the weekend after the S&P/ASX 200 wiped out Thursday’s loss and finished its best session in seven weeks. Investors bought stocks on news that a U.S.-Iran truce plan might reopen the Strait of Hormuz, easing worries over oil prices. The ASX trades 10 a.m. to 4 p.m. Sydney time on business days.
Traders focused less on the size of the weekly advance and more on the move itself. Local stocks are moving more on swings in oil, inflation numbers and possible RBA rate changes, with the effects now showing from the Gulf through to Australia.
ASX 200 jumps 1.6%, ends May higher despite midweek fall The ASX 200 finished Friday at 8,731.70, up 138.80 points, or 1.62%. For the week, the index gained about 0.9% compared to last Friday’s close. May ended with the benchmark up roughly 0.8%. Thursday’s 1.43% drop weighed after oil climbed on worries over the Middle East, but the market recovered into the week’s end.
Reuters reported the U.S. and Iran have a memorandum of understanding that would extend their ceasefire 60 days, if U.S. President Donald Trump signs off. The prospect of Hormuz reopening is significant for Australia since much of the world’s oil and gas pass through the strait, meaning any disruption hits petrol, shipping, and inflation.
Deal odds at 70% by June 6, says Commonwealth Bank senior geo-economist Madison Cartwright, in comments quoted by ABC. “The political pressure and economic costs on the US and President Trump are incentivising the US to make a deal,” Cartwright wrote. ABC News
Relief spread across the board, but it wasn’t neat. ABC said materials, financials and industrials led the market on Friday, while energy and utilities dropped. BHP climbed 2.91%, Rio Tinto put on 1.18%, and Fortescue gained 2.43%. Those big miners moved together with the shift to risk-on, not because of any iron ore news for a single company.
Midweek inflation numbers pushed the rally higher. The consumer price index eased to 4.2% in April, down from 4.6% in March. Trimmed mean inflation, which cuts out the biggest outliers, actually ticked up to 3.4%. That’s still above the RBA’s 2% to 3% band.
Rate-sensitive stocks struggled after the CPI release. Reuters said traders cut the chance of an August RBA hike to 40% from 51%. Harry McAuley, economist at Oxford Economics Australia, kept his call for “headline inflation to peak at 4.9% in Q2” and then fall below the target by mid-2027. Reuters
Growth numbers got a boost. Australian business investment leapt 6.5% in the March quarter, hitting A$52.57 billion. That beat forecasts, with much of the spending going toward plant and machinery for data centres. Next week’s national accounts will test how widespread the strength is—markets are watching to see if it’s just an AI and infrastructure story.
ASX Ltd shares plunged 13.2% on Tuesday, their biggest drop since April 2000, after the exchange said costs and capital spending will go up as it deals with tech upgrades and more regulatory work tied to CHESS, its clearing and settlement system. “The market is still scarred from the original CHESS failure,” said Greg Smith, investment specialist at Generate KiwiSaver. Company news pushed the stock lower. Reuters
Weekend risk is front and center: there’s no Iran deal yet. Trump hadn’t signed off by Friday, Reuters reported sticking points on nuclear details and the Strait of Hormuz, and U.S. Defense Secretary Pete Hegseth said Saturday the U.S. could resume strikes if talks fail. If negotiations fall apart, oil, inflation bets, banks, real estate, and travel stocks would come under fire again.
Market focus turns to next week’s domestic data. Westpac’s week-ahead note lists speeches by RBA Governor Michele Bullock and Deputy Governor Andrew Hauser, Q1 national accounts, and numbers on house prices, approvals, and goods trade. The ABS says national accounts and April goods trade both land at 11:30 a.m. AEST. IG tips Q1 GDP up 0.5% from the prior quarter. A result under 0.3% would show softer demand, but if it tops 0.7%, markets may stay on alert for more rate hike talk.
