European stock markets have made a turbulent start to 2026.
Reference indicator of the region Euro STOXX 600 index 2026’da so far %Increasing by 3.5 US S&A P 500’ %8He lagged behind in his earnings of ’.
However, individual companies have seen much larger fluctuations, and some names have increased by one hundred percent to date.
Many stocks due to the artificial intelligence boom, geopolitical tensions in the Middle East’, renewed demand for energy infrastructure, and investors' growing appetite for defense and strategic technologies %It increased by over 100’.
This is a sector-by-industry review of top-performing companies with a market capitalization of over 1 billion Euro’ in the European market: What they do, how they make money, and why investors fill their shares.
The technology is: Artificial intelligence infrastructure increases chip shares
Swedish chipmaker Sivers Semiconductors shares %With an increase of 947 percent, Europe became ’'s largest stock market winner.
The company is developing photonic and semiconductor components used in artificial intelligence data centers and 5G networks. As the demand for optical technologies that could meet the broad computing requirements of artificial intelligence systems grew, investors turned to stocks.
Revenue is still small (2025’te yearly %SEK 304.1 million (approximately EUR 27 million) with an increase of 25, but the company believes that potential future business opportunities %He said 64 increased to $453 million (€385 million) and much of that growth was due to artificial intelligence photonics.
The rise was accelerated when Sivers’ announced in April that it would be placed on a second list at Nasdaq’ in New York’.
Soitec, the French semiconductor materials company, has also seen weak gains in recent years. %It has risen by 639.
2026Annual revenue of €160 million in the third quarter of ’ due to weak mobile and automotive demand is down.
What changed the narrative was that investors were focused on the company's position in the AI supply chain. Soitec is designing silicon (SOI) sheets on thin insulators, which are increasingly used by chip manufacturers for co-packaged optics in smartphone radio frequency components, automotive radar and AI data centers.
Investors are increasingly betting on the future of the company, as Soitec’in has an almost monopoly on SOI substrates for photonics, which may become necessary for the next generation of AI infrastructure, especially in optical interconnects used by hyperscale data centers.
The industrial sector: Hydrogen and fuel cells are back in fashion
In the industrial sector, investors have rediscovered hydrogen and fuel cell companies.
Ceres Power, which develops solid oxide fuel cell technology and is listed in ’, UK, has increased by 237 percent this year.
Ceres is a UK ’-registered solid oxide fuel cell developer that licenses its technology instead of building its own systems.
The company benefited from growing interest in alternative power systems for artificial intelligence data centers, especially after US’ group Bloom Energy’ signed a major fuel cell agreement with Oracle.
Another British hydrogen company is ITM Power. 3 increased.
The Sheffield-based group produces electrolyzers used to produce green hydrogen. Investors welcomed stronger revenues, increased profitability and a partnership with German defence giant Rheinmetall in synthetic fuel projects linked to NATO supply chains.
Another development that has attracted investors is the company's planned Chronos production line, which aims for a gigawatt capacity by 2028. The funding is based on a UK government grant of £46.5 million (€53.7 million) pending approval from the Competition and Markets Authority ’ in June.
The health services: clinical milestones and weight loss drugs
French biotech company Nanobiotix is up. since the beginning of the yearFollowing progress made in a recent stage cancer experiment backed by Johnson & Johnson, investors' confidence in future milestone payments has increased.
On May 4, ’, the FDA approved a protocol change for the important NANORAY-312 Phase 3 trial in head and neck cancer.
The change eliminates a planned interim analysis and reduces the number of events required for the final reading, potentially allowing future payments to be put forward. Nanobiotix has been awarded “hundreds of millions of ” milestone payments under its 2023 license agreement with Janssen.
The stock has already been in stock since the FDA announcement is up.
Healthcare companies linked to the emerging market for GLP-1 obesity and diabetes drugs have also made strong gains.
This year, Swiss manufacturer PolyPeptide competed with pharmaceutical companies to secure production capacity for peptide-based drugs. is up.
The company produces ingredients used in weight loss and diabetes medicines produced by some of the world's largest pharmaceutical companies.
Revenue 2025’te .6 million euros increased to ’, while profitability increased. The company says it is on track to double its revenue from the 2023 level to 2028.
Demand has increased with the rapid growth of GLP-1 obesity drugs, and the market is expected to grow by 2034 ’e %It is expected to grow with a Compound Growth Rate of 12.7’.
Services of communication: satellites and artificial intelligence search beneficiary
French satellite operator Eutelsat emerged as one of the biggest geopolitical winners of the year.
Shares rose 64 percent as European governments increasingly sought alternatives to Elon Musk’'s Starlink network due to concerns over technological sovereignty and communications security.
The company's low-Earth orbiting OneWeb satellite network has attracted growing strategic interest from European policymakers, while demand for satellite connectivity has also increased during ongoing geopolitical tensions.
At the same time, Copenhagen-based review platform Trustpilot Group (TRST) has become one of the most unexpected beneficiaries of the prolific AI boom. Shares listed in London’ to date %It was valued at 57 percent.
Annual operating profit of 2025 in clicks from artificial intelligence search engines %Thanks to the increase of 1,490’, it quadrupled to 16 million dollars (14.7 million euros).
Trustpilot was the fifth most cited domain name worldwide on ChatGPT’ in January, according to Promptwatch data.
AI chatbots rely on vast databases of reviews written by more and more people to answer consumer questions. Trustpilot’'s library of 330 million reviews has become an authoritative resource for AI-generated responses.
The company has raised its profitability targets by 2030.
Analysts at Royal Bank of Canada recently described the platform as “, the winner of Artificial Intelligence.
Oil, shipping and tourism reshaped by Middle East tensions
The conflict around the Strait of Hormuz also reshaped European markets in 2026.
Nigerian producer Seplat Energy, trading in London and Lagos’, shares %With an increase of 97, he benefited from high oil prices.
CEO Roger Brown told investors: “The conflict in the Middle East has dramatically changed the outlook for the oil and gas industry in 2026 and possibly beyond.’
At the same time, Luxembourg-based tanker operator d’Amico International Shipping said that shipping disruptions forced ships to longer and more expensive routes. %It increased by 84 percent.
According to the company's May 7 result presentation, the company's net profit in the first quarter of 2026 is .5 million with an increase of 45.6 $’a (€25.2 million) rises, with average daily spot interest rate .264 with 53 increments $’a (€29,610) rose.
SpainThe largest hotel chain in ’ is Meliá Hotels. %Gained 43 percent.
Revenue for the first quarter of 2026 %EUR 461.6 million increased to ’ with an increase of 3.8; The company noted that travelers are increasingly opting for Mediterranean destinations, such as Spain, instead of parts of the Middle East’.
CEO Gabriel Escarrer told shareholders that the group's summer bookings for luxury resorts and city hotels in Spain’ are growing at a double-digit pace, with high single-digit income per room (RevPAR) expected to increase in the second quarter.
The financials are: Insurers and travel groups are recovering
Croatia with a market capitalization of approximately 1 billion Euro’'s largest insurance company Croatia Osiguranje’'s share price this year is up. The company has benefited from renewed interest from investors in the country since ’ accepted the euro and joined the Schengen area.
Croatia Osiguranje operates in many Balkan markets, including Slovenia, Serbia and North Macedonia.
Another winner in the European stock markets in the past months is the share price so far %It was the British group Saga that increased by 54.
Saga is a UK consumer brand made up of people over 50.
He sells holiday packages to this age group, ocean and river cruises with his own ships, motor and home insurance, and personal finance products. January 31, 2026The year leading up to ’ was what the administration called the “ year of transformation, a year in which it reported stronger profits and lower debt.
Growth in the cruise business and the restructuring of insurance operations helped boost investors' confidence.
Copper, renewables and the energy transformation of Europe’
Companies linked to electrification and renewable energy have also attracted investors.
Romanian energy infrastructure company Premier Energy has doubled its value after expanding battery storage and renewable energy projects in southeastern Europe’.
Spanish public company Cox ABG Group, meanwhile, after announcing that Iberdrola’ has largely acquired the Mexican renewable energy platform %It was valued at 53.
Ingredients of: Copper and steel increase structural demand
EuropeShares of Klöckner & Co SE’nin, one of ’'s largest independent steel and metal distributors, so far this year is up.
This rise comes from strong gains in 2025’ and the US-based Worthington Steel’, which offers €11 per share and has been holding its stake in the company ever since. .78’e resulted from the takeover bid.
Investors now believe that any future dominance agreement or removal from the potential company could lead to improved compensation conditions for minority shareholders and help the stock rise above its current bid price.
At the same time, the share prices of Aurubis’in, based in Hamburg, which is the largest copper producer in ’ and one of the largest copper recycling companies in the world, are expected to increase this year. %Increased by 50.
On May 8, ’, the company raised its 2025/26 year forecast for the second time, partly due to consistently high copper prices and demand from artificial intelligence data centers, electrification and renewable energy, as well as high revenues from sales of sulfuric acid, an important byproduct of the copper smelting process.
Renewables and the energy transformation of Europe’
Companies linked to electrification and renewable energy have also attracted investors.
One of them, Romanian energy infrastructure company Premier Energy, has doubled its value since the beginning of the year. This came as the group, which has or manages more than 1,500 megawatts of renewable generation capacity, expanded battery storage and renewable energy projects in southeastern Europe’.
May 2026In ’, northeastern RomaniaThe company began construction of a battery energy storage system near ’da Iași with a capacity of 200 megawatts / 400 megawatt hours. The cost of this system is estimated at 75 million euros, and southeastern Europe is one of the largest in ’.
Another company that has won in this category so far this year is share prices so far. increased to Sevilla-based Cox ABG Group. Latin America, Spain and AfricaIntegrated water and renewable energy enterprise operating in ’ also operates desalination, water treatment and water treatment plants.
Trade in the company's shares increased following the announcement of a major acquisition of Iberdrola’'s Mexican renewable energy platform.
Food and beverage companies
Belgian beverage company Spadel SA (SPA) has announced its shares so far this year after reporting strong sales and profit growth at 2025’te. %He saw 46 increase.
The company, which owns mineral water brands such as Spa and Bru, said the demand was supported by consumers moving away from alcohol and sugary drinks.
MP Evans Group’ (MPE) shares in 2026 is up. IndonesiaThe company, which operates palm oil fields in ’, benefited from high palm oil prices and record profits in 2025, while increasing its dividend after strong earnings.
Real estate companies on the rise
Emperador Properties, a Madrid-based Spanish real estate investment partnership, announced this year that investors are betting on a rebound in Spain's ’'s office real estate market. %It was valued at 45 percent.
As of June 2025, he manages approximately 167,719 square meters of world-class real estate, valued at approximately €1 billion. June 2025’te company at Torre Caleido project in Madrid’ %With 50 shares, he further expanded his portfolio.
Meanwhile, the owner of the shopping center Castellana Properties SOCIMI’'s shares after the company reported strong profit growth and record visitor numbers in its retail portfolio in Spain and Portugal’ is increased. Castellana also expanded this year with the acquisition of the Berceo shopping center in northern Spain’.
EuropeThree themes shaping ’'s market winners
Three broad themes explain many of this year's strongest performers.
The first of these is artificial intelligence structure; not the chip designers themselves, but the digging and shoveling suppliers further down the value chain, providing the infrastructure needed to support AI systems including photonics, energy supply, copper and data connectivity.
The second is geopolitics. Since February 28th, the Strait of Hormuz, ’'s blockade has repriced oil, shipping and travel in different directions: African producers sell crude oil in a narrow market (Seplat), product tanker prices rise to record levels as journeys lengthen (d’Amico), and Mediterranean tourism moves away from the Middle East ’ (Meliá).
Third, investors' appetite for institutional actions (acquisitions, acquisitions, and valuation catalysts); This has very little to do with business performance: The US bid for Klöckner is an activist effort to close the Rocket Internet’te discount to its net asset value, and an Iberdrola asset deal that has transformed Cox ABG’.
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