The Stockholm Stock Exchange opened Wednesday's session in positive territory. Trading is limited to a half-day ahead of Thursday's public holiday. Among the day's major headlines is a surprise CEO transition at Tele2.

As of 09:25 CET, the blue-chip OMXS30 index was up 0.43 percent at 3,059.69. Adjusted for dividends, the OMXS30 rose 0.45 percent. Turnover on the Stockholm Stock Exchange amounted to approximately SEK 1.6 billion.

Basic materials led the gains among major industrial sectors, advancing 1.8 percent. At the other end of the spectrum, real estate lagged, shedding 0.2 percent.

Among the leading constituents of the OMXS30 index, Boliden climbed 4.2 percent, while Ericsson B rose 1.7 percent. Underperformers included H&M B, down 1.2 percent, and Nibe B, which fell 0.9 percent.

Telecommunications operator Tele2 announced that CEO Jean Marc Harion will step down for personal reasons on June 30 this year. He will be succeeded by Nicholas Högberg, currently Executive Vice President and Chief Commercial Officer for the consumer business, and a former Tele2 board member. The stock eased 0.6 percent.

Industrial trading group Bergman & Beving reported adjusted EBITA for the fourth quarter (January to March 2026) that exceeded analyst expectations. Revenue was in line with consensus. The board has proposed a 5 percent dividend hike to SEK 4.20 per share. The market rewarded the results with a 5.9 percent share price increase.

Biotech firm Oncopeptides reported a significant jump in revenue and a substantial narrowing of its operating loss for the first quarter. The launch of Pepaxti in Italy has outperformed company expectations, while Germany has returned to stable growth rates. The stock surged 18 percent.

Heavy vehicle dealer Ferronordic reported lower revenue but a sharp increase in operating profit for the first quarter of 2026 compared to the same period last year. The shares climbed 17 percent.

Oil and gas company Meren Energy reported a multi-fold increase in EBITDAX (EBITDA before exploration costs) for the first quarter. Full-year guidance was reaffirmed. The stock slipped 0.6 percent.

Hygiene and health company Essity saw its shares edge down 0.2 percent. Principal owner Industrivärden, the investment firm, has purchased shares worth SEK 223 million.

Private equity firm EQT is launching a new share buyback program for up to 4.4 million treasury shares. The company recently concluded a program in which 3 million shares were repurchased. Furthermore, the stock trades ex-dividend today at SEK 2.50 per share. The share price remained unchanged.

Volatility remains high in tech company Silex following its IPO last week. Today, the stock is trading up 14 percent.

Among the post-earnings laggards, Morrow Bank fell 5.1 percent.