At midday, the Stockholm Stock Exchange remains in negative territory, mirroring a broader downturn across leading European bourses. Crude oil prices have trended higher during the session, while Hexagon made headlines with a major acquisition.

Peace negotiations between the U.S. and Iran in Pakistan over the weekend failed to reach a resolution. President Donald Trump has announced that the U.S. is implementing its own blockade of the Strait of Hormuz. According to Trump, the objective is to ensure freedom of navigation and prevent Iran from levying transit fees.

The U.S. also plans to clear mines in the region and take action against vessels that have paid Iran for safe passage. Other nations are expected to join the mission. Trump simultaneously warned of severe military retaliation should Iran target American assets or vessels.

As of 12:45 p.m., the OMXS30 index was down 0.74 percent at 3,086.73. Adjusted for dividends, the OMXS30 declined by 0.75 percent. Shares worth approximately SEK 7.2 billion had changed hands on the Stockholm exchange.

Energy was the top performer among major industrial sectors, posting a 6.00 percent gain. At the other end of the spectrum, healthcare lagged the market, falling 0.91 percent.

Among the blue-chip constituents of the OMXS30 index, Nibe B rose 8.1 percent, while Swedbank A edged up 0.6 percent. The weakest performers were Industrivärden C, down 2.8 percent, and Sandvik, which shed 2.2 percent.

Measurement technology group Hexagon is acquiring Waygate Technologies from Baker Hughes in a deal valued at $1.45 billion, equivalent to SEK 13.5 billion. Waygate employs 1,500 people and specializes in computed tomography, radiography, and remote visual inspection, with revenues of $630 million (SEK 5.9 billion). The acquired business reported an operating margin of 10 percent in 2025. Hexagon shares retreated 1.2 percent.

Vehicle manufacturer Traton delivered 6 percent fewer vehicles in the first quarter of 2026 compared to the same period last year, according to preliminary figures. The company stated the outcome was in line with expectations. Traton shares fell 0.6 percent.

Gaming company Enad Global 7 has completed cost-cutting measures within its Petrol and Piranha Games business units. Furthermore, board fees and CEO compensation are being reduced. These measures are expected to generate annual cost savings of SEK 32 million, effective from the second quarter of 2026. The stock climbed 6.1 percent.

Diabetes research firm Diamyd Medical is terminating its Phase 3 Diagnode-3 study following a subsequent evaluation of the results. In tandem, the company is launching a strategic review to evaluate external assets, partnerships, and potential corporate transactions. The company had previously reported failed Phase 3 results for the study. The stock is tumbling 12.9 percent.

A series of rating changes influenced trading. Industrivärden fell 2.7 percent following a "sell" recommendation from SEB.

E-commerce firm Nelly climbed 8.7 percent after receiving a "buy" rating from Dagens industri.

BNP Paribas resumed coverage of Nibe with an "outperform" rating. Additionally, France plans to nearly double its electrification subsidies to 10 billion euros per year by 2030, up from the current 5.5 billion euros—a move that could benefit Nibe. Nibe shares surged 8.1 percent.

Pareto dropped its "buy" recommendation for Volvo, downgrading the stock to "neutral." The shares lost 1.5 percent.

Nordea raised its rating for SKF to "buy," though the stock still slipped 0.5 percent.