The Stockholm Stock Exchange initially rose and then fell into red territory in the afternoon. The performance was in line with that of leading European stock exchanges.

Sentiment was negatively affected by concerns that US President-elect Donald Trump is said to be considering declaring a national economic emergency to enable a new tariff program.

At the close, the OMXS30 index was down 0.07 percent to 2,541.29. Shares worth around SEK 17.0 billion were traded on the Stockholm Stock Exchange.

The best performance among the stock exchange's major industrial sectors was in financials, with an increase of 0.5 percent. At the other end of the scale, consumer staples were at the bottom with minus 2 percent.

Among the leading shares, which are included in the OMXS30 index, SBB B rose 6.0 percent while Saab was up 3.4 percent. Nibe was the worst performer, down 4.1 percent, while Evolution was down 3.9 percent.

Doxa bounced up 38.2 percent on the stock exchange after halving in the last half hour on Tuesday. This after announcing on Wednesday that the company is negatively affected by SEK 150 million by Serneke Sweden's bankruptcy.

Saab is one of all European defense companies that rose on the stock market after Donald Trump's announcement that NATO countries should spend 5 percent of GDP on defense spending. The stock rose 3.4 percent.

Research company Xspray Pharma is in the final stages of submitting its updated application for Dasynoc to the US Food and Drug Administration. The timetable has been adjusted due to a tablet batch being identified as non-compliant. The announcement caused the share to fall by 17.2 percent.

The major bank SEB rose 0.2 percent after the announcement that two Fir Tree funds had withdrawn their claims against the company.

Dustin presented final figures for its fourth quarter and rose 7.6 percent. The figures were in line with the profit warning from November.

Sivers Semiconductors has been awarded a large chip development program worth SEK 60 million and rose 31.6 percent.

Clas Ohlsson presented better than expected sales figures for December and rose 5 percent. Sales increased by 12 percent.

Stillfront announced that the company's CFO will leave the company by July this year, and fell by 7.9 percent.

Assa Abloy announced the acquisition of two companies with total revenues of around SEK 220 million in 2023 and fell 0.5 percent.

In analytical news, Nokia was raised to buy from hold by Nordea, and fell 0.4 percent.

Deutsche Bank raises EQT to buy from hold, while Bank of America raises to buy from neutral. EQT's share rose 1.5 percent.

SHB raises its recommendations for Tobii to keep from sell and marketperform from underperform ahead of the Q4 report. The share rose 4.3 percent.

Affärsvärlden gives a neutral recommendation for Fortnox, which fell 2.1 percent.