The Stockholm Stock Exchange rose for the second consecutive session by midday Tuesday, as market sentiment remains focused on developments in the Middle East. Oil prices are trading down nearly 2 percent following comments from Donald Trump indicating he has deferred a planned strike on Iran.

Corporate news flow featured Nibe's interim report, which landed in line with expectations, Volvo's settlement in the U.S., and the initiation of a share buyback program by Evolution.

As of 12:36 PM, the OMXS30 index was up 1.00 percent at 3,086.01. Adjusted for dividends, the OMXS30 rose 1.05 percent. Shares worth approximately SEK 7.3 billion changed hands on the Stockholm bourse.

Technology led the major industrial sectors with a 2.7 percent advance. Conversely, the energy sector lagged, declining 0.1 percent.

Among the blue-chip constituents of the OMXS30, Evolution climbed 7.9 percent while Saab B rose 4.8 percent. Nibe B was the worst performer, shedding 3.7 percent, while Ericsson B eased 0.5 percent.

Truck and bus manufacturer Volvo's North American operations have reached a settlement with the California Air Resources Board (CARB). The settlement will negatively impact second-quarter operating income by SEK 1.8 billion. Volvo shares rose 0.6 percent.

The board of live casino developer Evolution has authorized a share buyback program of up to EUR 2 billion. The program commences immediately and runs until the 2027 Annual General Meeting. The company announced in March that no dividend will be paid for 2025.

Private equity firm EQT has been selected by the European Commission and other founding investors as the preferred investment advisor and fund manager for the Scaleup Europe Fund, which has a target size of EUR 5 billion. EQT climbed 1.6 percent.

Heating technology group Nibe reported first-quarter revenue and operating profit in line with analyst estimates. The company expects a stronger second half compared to the first half of the year.

Technology trading group Lagercrantz reported EBITA for the fourth quarter of its broken fiscal year (January to March 2026) that beat analyst expectations. The dividend also came in higher than anticipated, while revenue aligned with consensus. Lagercrantz shares rose nearly 7 percent.

Kopparbergs Bryggeri saw earnings rise in the first quarter compared to the same period last year. Revenue increased slightly while pre-tax profit more than tripled. CEO Peter Bronsman stated that the year has started positively and that performance is in line with both budget and expectations. The stock rose just over 4 percent.

Immunology company Hansa Biopharma has signed an exclusive licensing agreement with SERB Pharmaceuticals for the development and commercialization of Idefirix in Europe and the MENA region. The total value of the deal amounts to EUR 115 million. Hansa will initially receive EUR 110 million (SEK 1.2 billion), plus an additional EUR 5 million upon full EMA approval of the drug. The stock surged nearly 22 percent.

Audiobook specialist Storytel has acquired Dutch and Belgian publisher Overamstel for a cash consideration funded by existing liquidity. Overamstel generated revenue of EUR 17.4 million in 2025 with an adjusted EBITDA of EUR 1.3 million. Storytel shares rose 3.8 percent.

On the analyst front, UBS has upgraded Intrum to 'buy' from 'neutral'. The price target was significantly lowered to SEK 28 from SEK 54. The stock jumped nearly 15 percent.

SB1 Markets has initiated coverage on Medicover with a 'buy' rating and Volvo Cars with 'neutral'. Medicover rose 4.3 percent while Volvo Cars gained 0.8 percent.

Coffee Stain climbed 3.3 percent after Pareto Securities initiated coverage with a 'buy' recommendation.

Aktiespararna issued a 'buy' recommendation for Vitec, which rose nearly 8 percent.