The Stockholm Stock Exchange climbed on Monday, tracking gains in international markets. Sentiment was bolstered by retreating oil prices following positive signals from Donald Trump regarding progress in peace negotiations with Iran. Several major exchanges, including London and New York, remained closed for public holidays. The session was further marked by three high-profile CEO appointments among Stockholm-listed companies.

At the close, the blue-chip OMXS30 index was up 1.48 percent at 3,192.83. Shares worth approximately SEK 16.5 billion changed hands on the Stockholm Stock Exchange.

Basic materials led the gains among major industrial sectors, advancing 2.2 percent. Conversely, the energy sector lagged the broader market, finishing down 2 percent.

Among the heavyweights in the OMXS30 index, Boliden rose 4.1 percent, while Atlas Copco A gained 3.0 percent. Underperformers included Nibe B, which fell 1.6 percent, and Tele 2 B, which shed 1.3 percent.

Telecom equipment provider Ericsson announced it is relocating its Stockholm headquarters from Kista to Hagastaden. The company has signed significant lease agreements with Atrium Ljungberg and Castellum. Ericsson shares rose marginally, while Atrium Ljungberg and Castellum gained 2.2 percent and 1.7 percent, respectively. Meanwhile, Corem's B-share tumbled 9.9 percent, as the company currently leases premises to Ericsson in Kista.

Investment firm Kinnevik has appointed Helena Saxon as its new CEO, effective August 1. She succeeds interim CEO Rubin Ritter. Saxon served as CFO at Investor between 2015 and 2024 and holds board positions at H&M and Novo Nordisk. The stock climbed 4.6 percent.

Industrial supplier Nolato has named Anders Björklund as its new President and CEO. He succeeds Christer Wahlquist, who will step down following the interim report on July 17. Nolato shares rose 1.6 percent.

Furthermore, polymer group Hexpol has appointed Henrik Elmin as its new CEO after reaching an agreement with current CEO Klas Dahlberg for his departure. Elmin, a board member at Hexpol, has agreed to take over the role on an interim basis starting August 1. He joins from Atlas Copco, where he most recently served as Business Area President for Industrial Technique. The stock edged up 0.3 percent.

Research firm Bioarctic's partner, Eisai, presented a simulation of potential future sales for the Alzheimer's drug Leqembi during its Capital Markets Day. According to the simulation, sales are expected to reach approximately 300 billion yen, equivalent to roughly SEK 17.6 billion, during the 2028/2029 fiscal year ending March 2029. Bioarctic shares climbed 1.2 percent.

Medtech company Episurf Medical reported a wider operating loss of SEK -24.9 million for the first quarter, despite an increase in revenue. The result was weighed down by transaction costs related to an acquisition and negative results from medical operations. Episurf shares surged 12.7 percent.

Forestry group Stora Enso is initiating labor negotiations regarding the permanent closure of pulp production at fiber line 3 in Skutskär. The facility has an annual capacity of 515,000 tonnes and employs approximately 370 people. The stock rose 1.7 percent.

Hexagon spin-off Octave made its trading debut on Nasdaq Stockholm today. The terms were 1:10, meaning ten shares in Hexagon entitled holders to one share in Octave. The listing concerned Swedish Depository Receipts (SDRs) on the Large Cap segment under the ticker OCTV SDB. The stock traded between SEK 157 and SEK 188 during the day before closing at SEK 157.

In analyst news, SB1 Markets upgraded Hexagon to buy from neutral, reiterating a target price of SEK 100. The stock rose 2.5 percent.

Dagens industri issued a buy recommendation for Securitas, sending the shares up 3.2 percent.