The Stockholm Stock Exchange opened lower on Friday, with telecom giant Ericsson retreating following its interim report. Geopolitical tensions remain a focal point. U.S. President Donald Trump has stated that a ten-day ceasefire has been reached between Israel and Lebanon, and that the Iran conflict is expected to end soon.

As of 09:20 CET, the OMXS30 index was down 0.30 percent at 3,111.28. Shares worth approximately 1.8 billion SEK had changed hands on the Stockholm bourse.

Among the major industrial sectors, technology performed best with a 1.1 percent gain. At the other end of the spectrum, telecom lagged the market, falling 2.1 percent.

Among the blue-chip stocks included in the OMXS30 index, Lifco B rose 1.0 percent while Skanska B gained 1.0 percent. The weakest performers were Ericsson B, down 4.2 percent, and Boliden, which shed 1.6 percent.

Ericsson is sliding on the back of a weaker-than-expected Q1 report. Adjusted EBITA came in at 5.6 billion SEK against an expected 5.8 billion, while adjusted gross profit was 2.9 percent lower than anticipated at 23.7 billion SEK. Revenue also missed estimates. Looking ahead, the company expects a RAN market with essentially no growth.

Home improvement chain Byggmax fell 4.9 percent. The company reported lower revenue and a slightly weaker operating result of -127.0 million SEK for the first quarter. Like-for-like sales decreased by 5.3 percent during the period, with sales impacted by a cold February.

Real estate company Platzer reported a slight increase in profit from property management to 196 million SEK for the first quarter. Rental income decreased 2.2 percent to 435 million SEK. The stock is up 2.6 percent.

Environmental technology company Nederman saw revenue, order intake, and profit decline in the first quarter. The stock is down 6.9 percent.

Terranor has been awarded six new road maintenance contracts in the Swedish Transport Administration's latest tender, with a total value of approximately 1.64 billion SEK. This corresponds to annual revenue of at least 366 million SEK, compared to 251 million SEK for outgoing contracts. The stock is up 0.9 percent.

Also in focus is the news that high-profile savings expert Günther Mårder has been remanded in custody on suspicion of aggravated insider trading during the period 2024-2026. Mårder is the chairman of Spotlight Group and a board member of Raysearch, Amido, and the Swedish Public Employment Service. He has also been proposed as a board member for Prisma Properties. Mårder denies any wrongdoing.

From the analyst desk, Deutsche Bank initiated coverage on Skanska with a "buy" rating and a price target of 300 SEK. The stock is up 0.9 percent.

DNB Carnegie downgraded Kinnevik to "hold" (from buy), with a price target of 63 SEK (down from 100). The stock is retreating 3.5 percent.