The Stockholm Stock Exchange opened Tuesday's session with modest gains. The morning news flow is headlined by record-breaking figures from Hanza and fresh sales data from Volvo Cars.

As of 09:19 CET, the benchmark OMXS30 index was up 0.42 per cent at 3,048.22. Shares worth approximately SEK 1.4 billion had changed hands on the Stockholm bourse.

Among the major industrial sectors, basic materials led the advance with a 0.90 per cent gain. At the other end of the spectrum, the energy sector lagged, retreating 2.15 per cent.

Among the blue-chip components of the OMXS30, H&M B rose 1.6 per cent, while Telia also gained 1.6 per cent. Astra Zeneca was the weakest performer, shedding 1.5 per cent, while Saab B eased 0.2 per cent.

Cash handling specialist Loomis has entered into an agreement to launch a public tender offer for the Peruvian firm Hermes Transportes Blindados, at an enterprise value of approximately SEK 4 billion. Hermes reported revenues equivalent to roughly SEK 1.2 billion in 2025 and employs around 3,200 people. Loomis shares climbed 1.9 per cent.

Coinciding with the opening bell, carmaker Volvo Cars announced that its global sales fell by 10 per cent during the February-April period. The stock is up 0.7 per cent.

In earnings news, broadband operator Bahnhof reported that its pre-tax profit rose to SEK 79.7 million, up from SEK 73 million, on a 9 per cent increase in revenue. Bahnhof shares are trading 5.5 per cent higher.

Contract manufacturer Hanza posted a record first quarter, characterized by a sharp increase in turnover and improved profitability. Operating profit surged to SEK 220 million from SEK 86 million, with organic sales growth reaching 20 per cent. Hanza shares skyrocketed 25.9 per cent.

Installation services group Bravida reported an operating profit of SEK 325 million (307), yielding an operating margin of 4.6 per cent (4.5). Order intake rose by just over 5 per cent. Bravida shares jumped 11.5 per cent.

Real estate company Nyfosa reported unchanged income from property management of SEK 319 million for the first quarter. Nyfosa rose 1.2 per cent.

Cybersecurity firm Yubico confirmed final figures in line with its preliminary release. The company has appointed Jerrod Chong as permanent CEO. The stock slipped 0.9 per cent.

On the analyst front, Morgan Stanley has upgraded SSAB to 'Overweight' from 'Equal-weight', with a price target of SEK 94. SSAB shares rose 2.7 per cent.