The Helsinki Stock Exchange closed sharply lower on Thursday, with the broad OMXH index dropping 1.9% to finish at 13,161 points.
The sell-off was driven by a combination of mixed corporate earnings reports and renewed global risk aversion stemming from escalating tensions in the Middle East.
Nokia shares were among the biggest losers in the session, tumbling significantly as investors digested the company's latest results.
The tech giant's decline weighed heavily on the index, reflecting broader concerns over the semiconductor and telecommunications sectors.
In contrast, Huhtamäki shares rose, providing a rare bright spot in an otherwise negative trading day as the packaging company's performance defied the broader market trend.
The downward pressure in Helsinki mirrored weakness seen in US markets earlier in the week.