The Stockholm Stock Exchange closed Thursday's session in negative territory, mirroring a similar trend across major European markets, while U.S. equities recorded modest gains.

At the close, the OMXS30 index was down 0.48 percent at 3,079.31. Adjusted for dividends, the OMXS30 declined by 0.27 percent. Shares worth approximately 22.5 billion kronor changed hands on the Stockholm exchange.

Energy was the top performer among the major industrial sectors, advancing 3.69 percent. At the other end of the spectrum, technology lagged the market with a decline of 1.27 percent.

Among the blue-chip constituents of the OMXS30 index, ABB rose 1.3 percent while Volvo B gained 0.9 percent. The weakest performers were SEB A, which shed 1.8 percent, and SCA B, down 1.7 percent.

During the afternoon, betting company Betsson released preliminary figures for the first quarter. The company expects revenue of 285 million euro for the first quarter of 2026, down from 294 million euro the previous year. Operating profit is projected to fall to 34 million euro from 64 million euro. The stock plummeted 14.4 percent on the news.

Volvo traded ex-dividend today for its 13 kronor per share payout. The stock finished 3.1 percent lower.

Lock manufacturer Assa Abloy has acquired Rollerdoor Group, a Portugal-based manufacturer of sectional doors. The acquisition reported 2025 sales of 58 million euro, equivalent to 640 million kronor. Pareto also upgraded its recommendation to buy. The stock closed unchanged.

Live casino developer Evolution has petitioned the Superior Court of New Jersey to add competitor Playtech as a defendant in its ongoing U.S. defamation lawsuit. Evolution alleges that Playtech has disparaged the company in an attempt to eliminate competition in the North American market. The conflict has been ongoing since December 2020. Evolution shares fell 1.6 percent.

Competition in the European automotive market is intensifying, and a price war may be imminent, warned Volvo Cars CEO Håkan Samuelsson in an interview with Sveriges Radio. Samuelsson pointed to supply outstripping demand and noted that price pressures in China could spill over into Europe as Chinese players enter the market. The stock retreated 3.2 percent.

Construction group Skanska has secured a pair of orders with a combined value of 1.8 billion kronor. Skanska shares closed unchanged after an initial decline.

Home improvement chain Clas Ohlson increased sales by 11 percent in March, with organic growth accounting for 8 percent. The stock rose 2 percent.

Industrial supplier Mildef is expanding its operations in Helsingborg by 6,000 square meters. The decision is driven by the company's efforts to meet growing demand from defense forces for its products and services. Mildef climbed 4.7 percent.

Net Insight was awarded a development project within ESA's NAVISP program, supported by the Swedish National Space Agency. The project aims to develop technology for positioning, navigation, and timing (PNT), used in sectors such as telecommunications, transport, and energy systems. The financial scale of the support was not disclosed. Net Insight surged 12.2 percent.

Major shareholder Lars Anders Larsson has, through his company FAHA Holding, increased his stake in the real estate investment firm Fastator to 15.92 percent. The stock rose 1.6 percent.

A series of rating changes were reported on Thursday.

Tele2 fell 1.2 percent after SEB downgraded its recommendation to sell from hold.

Morgan Stanley upgraded Boliden to equal-weight from underweight. The stock dipped 0.1 percent.

Pareto Securities downgraded Alfa Laval to hold. The stock declined 0.6 percent.

Barclays lowered its ratings for SEB and Handelsbanken while upgrading Swedbank. All three stocks traded lower, with SEB posting the largest decline.