Fortum stock heads into the open after a 2.8 percent gain

At the close on September 17, 2026, Fortum stock finished at EUR 24.43 on Nasdaq Helsinki, up 2.8 percent, while benchmark European shares also advanced. Fortum stock also drew attention from a new employee share savings programme and nuclear power supply deal news.

Fortum stock closed at EUR 24.43 on Nasdaq Helsinki on September 17, 2026, gaining 2.8 percent from the previous session. Compared with the broader European market, Fortum outperformed as regional indices also ended higher that day.

September 17, 2026 in numbers

Fortum Corporation (ISIN FI0009007132) ended the September 17, 2026 session on Nasdaq Helsinki at EUR 24.43, with a daily increase of 2.82 percent, according to exchange data shown in the quote overview on MarketScreener. The same overview indicated that Fortum’s five day change was slightly negative and that the year to date performance remained clearly positive, underscoring the stock’s recent volatility within an overall upward trend.MarketScreener In the same session, major European equity benchmarks ended higher as oil prices slipped and investors digested the latest central bank moves, providing a supportive backdrop for utility shares such as Fortum.Radiocor

A key narrative around Fortum in mid September was the multidecade nuclear power purchase agreement with Google, under which Fortum would supply nuclear-generated electricity from its Loviisa plant to the technology company through 2050, strengthening the perceived long term earnings visibility of its nuclear portfolio.American Nuclear Society Coverage of the deal noted that Fortum shares had previously jumped by more than 8 percent when the agreement was announced, helping to set the tone for subsequent trading sessions.Morningstar In addition, Fortum’s stock exchange release on September 17, 2026 announced the launch of the savings period for 2027 under its employee share savings programme, which can influence investor perception by aligning employees more closely with shareholder interests.MarketScreener

Outlook today and upcoming dates

Today, Fortum heads into the open without a major company specific release scheduled for September 18, 2026 in the visible financial calendar, but the recent nuclear power agreement with Google and the new employee share savings programme are likely to remain in focus as investors assess the utility’s strategic positioning and capital allocation plans.American Nuclear Society Fortum has also published its financial calendar for 2027, stating that the Financial Statements Bulletin for the year 2026 will be released on February 2, 2027 at approximately 9:00 EET, a date that provides a longer term anchor point for investors monitoring the company’s reporting cycle.Cision Broader European equity sentiment, influenced by energy prices and monetary policy expectations, will continue to shape trading conditions for Fortum shares into today’s session.