Ibovespa Today: Follow the Stock Market Live in Real Time

Brazil’s Ibovespa was trading lower in the first deals on Monday, June 1, around 173,100 points, as investors monitored comments from Finance Ministry official Dario Durigan and weighed fresh tensions in the Persian Gulf that challenged optimism about the reopening of the Strait of Hormuz. Shares of Vale and most major banks fell, while Petrobras advanced, supported by the rise in oil prices.

In the foreign exchange market, the commercial dollar slipped to BRL 5.03, while longer-term interest rate futures moved higher. The local market was also influenced by geopolitical developments abroad, where reports emerged that U.S. forces struck Iranian targets over the weekend and that Tehran retaliated. At the same time, Kuwait’s defenses were said to be intercepting missile and drone attacks, adding to concerns about the risk of a wider regional escalation.

Negotiators in Washington and Tehran were reportedly still working toward an agreement, but U.S. President Donald Trump had remained silent on the progress until posting that everyone should “just sit back and relax.” U.S. Defense Secretary Pete Hegseth said on Saturday that the United States was prepared to resume strikes against Iran if no deal is reached, keeping military risk high and supporting oil prices.

Brent crude futures rose about 3% to around $94 per barrel, reflecting fears that any disruption in the Gulf could threaten energy flows through one of the world’s most important shipping routes. The move helped Petrobras shares outperform the broader market, even as risk aversion pressured other major Brazilian blue chips.

Despite the geopolitical backdrop, global equities found some support from the artificial intelligence rally. U.S. stock futures were modestly higher, with Dow Jones futures up 0.42%, S&P 500 futures rising 0.26%, and Nasdaq futures gaining 0.25%. The gains suggested that enthusiasm around AI-related stocks continued to provide a cushion for markets, even as investors kept a close eye on Middle East developments and their potential impact on oil, inflation, and broader financial conditions.

In Brazil, the combination of weaker commodity-linked and financial shares, higher rates, and a stronger oil price highlighted the mixed nature of the session. Traders were also focused on domestic policy signals and any remarks that could influence expectations for fiscal management, interest rates, and the near-term direction of the Brazilian market.