The Stockholm Stock Exchange rose sharply on Wednesday, fueled by peace optimism regarding the Iran conflict. Global markets also saw significant gains while oil prices retreated. Meanwhile, the flow of interim reports continued.

The White House believes that the U.S. and Iran are approaching a memorandum of understanding to end the war and create a framework for continued nuclear negotiations, sources told Axios. The U.S. is awaiting Iranian responses on several key issues within 48 hours.

At the close, the OMXS30 index was up 2.83 percent at 3,159.33. Adjusted for dividends, the OMXS30 index rose 2.87 percent. Shares worth approximately SEK 29.6 billion were traded on the Stockholm Stock Exchange.

Among the major industrial sectors, basic materials performed best with a 4.1 percent increase. At the other end of the scale, energy lagged behind, falling 3.7 percent.

Among the leading stocks in the OMXS30 index, Boliden rose 7.2 percent while Atlas Copco A gained 5.9 percent. The weakest performer was Nibe B, down 1.0 percent, while Ericsson B edged up 0.6 percent.

Construction giant Skanska continues to report billion-krona orders. The company secured two contracts in the U.S. today worth a combined SEK 12 billion. The stock rose 4.1 percent.

Mining company Lundin Gold climbed 6.6 percent after reporting strong new drilling results from the Fruta del Norte mine in Ecuador.

Medtech company Asker Healthcare showed increased revenue and a clear improvement in earnings for the first quarter. The stock climbed 6.7 percent.

Security firm Verisure reported increased revenue and earnings for the first quarter shortly before Tuesday's close. The stock rose on Tuesday and continued its ascent by 4.0 percent on Wednesday.

Real estate company SBB increased its profit from property management to SEK 131 million. The stock rose 3.2 percent.

Ventilation company Lindab's operating profit came in lower than expected at SEK 188 million. Revenue was in line with expectations. The stock retreated 0.7 percent.

Debt management firm Hoist reported higher-than-expected revenue for the first quarter. Pre-tax profit also beat expectations at SEK 394 million. Hoist surged 16 percent.

Game developer G5 Entertainment reported decreased revenue and a slightly lower operating profit for the first quarter of 2026. The company is also launching a cost-cutting program where 180 employees will be let go. The stock fell 7.1 percent.

Confectionery manufacturer Cloetta increased its adjusted operating profit to SEK 273 million. Revenue also increased. The stock rose 7.9 percent.

Outdoor products company Thule has signed an agreement to acquire Swiss-based Curli, which operates in dog transportation. The initial purchase price amounts to CHF 10.1 million, equivalent to SEK 118 million, with a potential earn-out of up to CHF 6.8 million. Thule climbed 6.6 percent.

Among the earnings winners, Profoto stood out with a 26 percent gain, while C-Rad climbed 23 percent. Among the losers following their reports, Xano fell 16 percent and CTEK dropped 5.5 percent.

Oil company IPC was a clear loser following the decline in oil prices. The stock retreated 4.0 percent.