The Stockholm Stock Exchange declined on Wednesday, tracking lower prices across global markets in both Europe and the US.

The US Trade Representative proposed new tariffs of up to 12.5 percent on imports from 60 economies, including China, the EU, and Japan. Oil prices are rising in the wake of new overnight attacks on Wednesday involving both the US and Iran.

At the close, the OMXS30 index was down 0.49 percent at 3,134.46. Shares worth approximately SEK 24.2 billion were traded on the Stockholm Stock Exchange.

Energy was the best-performing major industrial sector, posting a 3.0 percent gain. At the other end of the spectrum, financials lagged the market with a 1.4 percent decline.

Among the leading stocks in the OMXS30 index, Alfa Laval rose 3.2 percent while Tele 2 B gained 0.9 percent. EQT saw the weakest performance, falling 6.5 percent, while Boliden dropped 2.9 percent.

Home improvement chain Clas Ohlson reported fourth-quarter operating profit below analyst expectations. Sales figures were already known. The board is proposing a total dividend of SEK 14 per share. Clas Ohlson also presented new financial targets for the three-year period that began on May 1. The company aims for organic sales growth of 5 percent per year and an operating margin of around 12 percent. The previous operating margin target was 7-9 percent per year. The stock fell 4.9 percent.

European private equity firms, including EQT, were weighed down by news that Swiss-based Partners Group has restricted withdrawals from its Global Value evergreen fund.

Real estate company Atrium Ljungberg saw its shares tumble 9.0 percent. Finnish pension insurance company Varma sold its entire holding of 40.6 million shares at a price of SEK 27.35 per share, a transaction totaling SEK 1.1 billion. This represents a 7 percent discount to the previous day's closing price.

Carmaker Volvo Cars lost 4.1 percent. The company's global sales totaled 178,980 cars during the March-May period, a 5.5 percent decrease compared to the same period last year. However, sales improved compared to the immediately preceding three-month period.

Investment company Ratos divested 9 million shares in the construction company Sentia. The shares were sold to institutional investors at a price of NOK 72.40 per share, a deal worth NOK 652 million. Following the sale, Ratos owns 30.8 percent of the shares in Sentia. Ratos shares lost 1.3 percent.

Climate control company Munters has acquired British-based Optifarm, a provider of AI-based solutions for livestock monitoring. The acquisition is intended to strengthen the offering in operational intelligence under the Speria brand, part of the Foodtech business area. The stock rose 3.1 percent.

Medical technology and cybersecurity company Sectra received orders from Swedish authorities valued at SEK 120 million regarding secure communications. However, the stock edged down 0.2 percent.