The Stockholm Stock Exchange opened Tuesday's session with modest gains.

New media reports suggest that Donald Trump is willing to end the conflict in Iran without reopening the strategic Strait of Hormuz, aiming to prevent the hostilities from extending beyond his initial 4-6 week timeline.

As of 09:20 CET, the OMXS30 index was up 0.15 percent at 2,894.67. Shares worth approximately SEK 1.3 billion had changed hands on the Stockholm bourse.

Basic materials led the gains among major industrial sectors, rising 0.79 percent. Conversely, the energy sector lagged behind, dropping 2.16 percent.

Among the blue-chip stocks in the OMXS30 index, Boliden rose 1.2 percent while AstraZeneca gained 0.9 percent. On the downside, Saab B fell 2.7 percent and Alfa Laval shed 0.6 percent.

Automaker Volvo Cars is converting part of its outstanding loan to Polestar into equity, based on a conversion price at a five percent discount to the 30-day VWAP. An initial conversion of USD 274 million increases its stake from 9.8 percent to 19.9 percent. Furthermore, the companies announced plans to consolidate Polestar 3 production at the Charleston plant in the US. Volvo Cars eased 0.1 percent.

Engineering group Atlas Copco's Swiss peer VAT Group reported very strong order intake for the first quarter of 2026, driven by sustained high demand in the semiconductor industry. However, revenue recognition has been delayed due to supply chain disruptions linked to the Middle East conflict. Atlas Copco's A-shares rose 0.1 percent.

Wind power company Eolus's board is proposing no dividend for the 2025 fiscal year. This decision follows the terms of the company's senior secured green bonds, which prohibit dividend payments if a negative result is recorded for the 2025 financial year. Last year's net result was SEK -356 million (compared to 155 million). Eolus shares fell 0.6 percent.

Consumer healthcare company Midsona is acquiring the Risenta brand for a preliminary SEK 45 million, funded through existing cash reserves. The acquisition is expected to contribute approximately SEK 130 million in annual sales and improve EBIT margins and earnings per share. Midsona climbed 5.1 percent.

Construction firm NCC has signed an agreement with Östersund Municipality to build a new water treatment plant at Minnesgärde, with an order value of approximately SEK 700 million. NCC rose 0.8 percent.

Construction group Peab has been awarded four road maintenance contracts by the Swedish Transport Administration (Trafikverket) for the Vilhelmina, Svenstavik, Arboga, and Helsingborg areas. The total contract value amounts to SEK 666 million. Peab climbed 0.5 percent.

Online brokers Avanza and Nordnet released statistics on their most bought and sold stocks. Avanza rose 1.1 percent and Nordnet 0.4 percent.

A series of rating changes were issued this morning.

Pareto Securities upgraded Invisio to Buy from Hold, reiterating a price target of SEK 335. Invisio rose 2.7 percent.

Pareto Securities initiated coverage on Vitrolife with a Buy rating and a price target of SEK 110. Vitrolife increased 1.2 percent.

SB1 Markets initiated coverage on Beijer Alma with a Neutral rating and a price target of SEK 250. Beijer Alma slipped 0.2 percent.

SB1 Markets initiated coverage on H&M with a Neutral rating and a price target of SEK 170. H&M gained 0.5 percent.

BNP Paribas resumed coverage on Volvo with a Neutral rating and a price target of SEK 304. Volvo edged up 0.1 percent.

BNP Paribas resumed coverage on Traton with an Outperform rating and a price target of EUR 37. Traton rose 0.6 percent.