The Stockholm Stock Exchange closed in the red following a weak finish on Wednesday, despite trading in positive territory for most of the session. In the news flow, Mildef emerged as a winner following a positive profit alert. Sivers Semiconductors also gained ground amid massive trading volume in the stock.

At the close, the OMXS30 index was down 0.41 percent at 3,118.41. Shares worth approximately SEK 24.4 billion were traded on the Stockholm Stock Exchange.

Among the major industrial sectors, real estate and technology performed best, both rising 0.7 percent. At the other end of the spectrum, telecommunications lagged behind, falling 1.5 percent.

Among the leading stocks included in the OMXS30 index, Evolution rose 2.7 percent while EQT gained 2.2 percent. The weakest performers were SKF B, down 2.1 percent, and Epiroc A, which shed 2.0 percent.

Industrial supplier Mildef issued a positive profit alert for the first quarter. Revenue, EBITA, and order intake for the quarter are all expected to significantly exceed analyst expectations. The company cited an improved delivery situation and strong demand for its products and solutions. The stock surged 32 percent. Among peers, Invisio rose 5.5 percent.

Volatile trading continued in technology company Sivers Semiconductor, which rose sharply on very high turnover. The company has entered into a partnership with contract manufacturer Jabil regarding an energy-efficient optical transceiver module for AI data centers. The stock climbed 30 percent and has now rallied 390 percent in one month.

IT reseller Dustin reported second-quarter revenue that beat expectations. Operating profit of SEK 42 million was perfectly in line with Bloomberg consensus. Adjusted EBITA amounted to SEK 103 million, compared to SEK 110 million last year.
The stock rose 5.6 percent.

Among investment companies, Öresund increased its net asset value (NAV) by 9.4 percent in the first quarter, significantly outperforming its benchmark index, which rose 1.2 percent. However, the stock fell 4.7 percent, weighed down by a sell recommendation from Dagens Industri, which noted that the shares are trading at a 20 percent premium to NAV.

Peer company Creades fared worse, reporting a negative return on NAV of 4 percent for the quarter. The stock closed unchanged.

Another investment company reporting figures was VEF, which fell 7.3 percent. At the end of the quarter, NAV per share stood at USD 0.40, compared to USD 0.43 at the start of the year.

Payment services company Qliro's rights issue was oversubscribed. The company will receive SEK 60 million before transaction costs. The stock rose 1.1 percent.

Negotiations regarding the price of Bioarctic's Alzheimer's drug Lecanemab (Leqembi) have stalled. Regional authorities consider the price too high and are unwilling to subsidize the treatment, according to a report by Sveriges Radio. The stock closed 1.0 percent lower.

Leisure products company Dometic climbed 4.9 percent after Nordea upgraded its recommendation to Buy from Hold.

SEB raised its rating for Husqvarna to Hold from Sell. The stock increased 2.2 percent.

Thule rose 1.6 percent as Handelsbanken initiated coverage with a Buy rating.

Autoliv slipped 1.7 percent after Jefferies dropped its Buy rating and downgraded the stock to Hold.

Furthermore, Nordea raised its rating for Sandvik to Hold from Sell. The stock initially rose but closed 1.4 percent lower.

Hanza fell sharply by 10.3 percent after Nordea dropped its Buy rating and downgraded the stock to Hold.