Key Takeaways
- Defense companies led Germany’s stock market gains. Rheinmetall AG, RENK Group AG, and HENSOLDT AG accounted for 3 of the top 10 performers.
- Energy infrastructure stocks also saw strong gains. Siemens Energy AG and Nordex SE benefited from Germany’s expansion of renewable power and grid capacity.
- Small-cap stocks delivered the largest percentage gains. Voltabox AG led at +391%. That shows how volatile smaller companies’ share prices can be.
- Industrial companies showed signs of recovery. Firms such as Deutz AG and Heidelberger Druckmaschinen AG rebounded after several weaker years.
- Market leadership is shifting. The strongest 2025 gains came from firms tied to security and energy infrastructure, rather than Germany’s traditional large industrial conglomerates
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Annual return measures how much a stock’s price increased or decreased over a year.
Between January 6, 2025 and January 5, 2026, Germany’s strongest stock returns clustered in three groups. Those groups were defense, energy infrastructure, and small-cap names.
Top 10 Winners in German Stocks
| Rank | Company | Annual Return | Sector |
|---|---|---|---|
| 1 | Voltabox AG | +391% | Batteries |
| 2 | RENK Group AG | +203% | Defense |
| 3 | Rheinmetall AG | +191% | Defense |
| 4 | Nordex SE | +186% | Wind Turbines |
| 5 | Bike24 AG | +185% | Online Retail |
| 6 | Siemens Energy AG | +160% | Clean Energy |
| 7 | flatexDEGIRO AG | +149% | Finance |
| 8 | HENSOLDT AG | +144% | Defense |
| 9 | Deutz AG | +143% | Engines |
| 10 | Heidelberger Druckmaschinen | +104% | Printing Machinery |
*Return(%) = [(P2026 - P2025) / P2025]×100
Source: TradingView, Yahoo! Finance
Defense Stocks Lead Germany’s Top Performers
Three of the ten best-performing stocks are defense companies:
- RENK Group AG
- Rheinmetall AG
- HENSOLDT AG
This concentration reflects a broader shift in Europe’s security landscape.
Germany budgeted €108 billion for military spending in 2026. That combines its regular budget with the special fund created after Russia’s invasion of Ukraine. Rheinmetall’s sales rose 29% in 2025 to €9.9 billion.
Rheinmetall’s sales rose 29% in 2025 to €9.9 billion, as European governments expanded military procurement.
Air Defence Systems Drive Advanced Weapons Support to Ukraine ->
Heavy Armour Support to Ukraine is Led by a Few Countries ->
Investor demand followed that revenue growth. The buying pushed defense share prices sharply higher over the year.
Germany’s Energy Infrastructure Stocks Also Rallied
Another major theme among the top performers is the energy transition.
Germany’s long-running Energiewende continued to drive investment in renewable power and grid infrastructure in 2025. As countries expand renewable capacity, demand has increased for the systems that support it.
Two Decades of Renewable Energy Growth in Europe ->
Two of the top performers build that infrastructure:
- Nordex SE, a wind turbine producer
- Siemens Energy AG, which builds grid and power equipment
Investors favored these infrastructure suppliers over energy producers themselves. That’s because demand for turbines, grid systems, and power technology grew alongside renewable capacity.
Small-Cap Stocks Deliver the Largest Gains
Several of the strongest gains came from smaller companies, where price movements tend to be more pronounced.
The largest increase was recorded by Voltabox AG, whose shares rose 391% over the period. The company operates in battery systems for industrial and mobility applications.
Similarly, Bike24 Holding AG gained nearly 185%. It recovered after a weak stretch in cycling demand.
Small-cap stocks like these see sharper price swings than large companies because they trade in lower volumes.
Industrial Names Rebounded After a Weak Stretch
Some of the top stock performers also reflect a recovery in Germany’s industrial base.
Companies such as Deutz AG and Heidelberger Druckmaschinen AG posted strong gains. Both companies were recovering from supply-chain disruptions, high energy costs, and weak industrial demand in prior years.
As conditions stabilized, investors priced in improving order books and production activity at both companies.
Germany’s top-performing stocks in 2025 point to a gradual shift in market leadership.
Germany’s 2025 stock gains concentrated in defense, energy infrastructure, and smaller specialized firms, not the country’s traditional largest industrial conglomerates. The pattern points to a market rewarding exposure to security and energy demand over scale.
More topics
- Germany’s Military Spending Increased 60-Fold Since 1953
- Heavy Armour Support to Ukraine is Led by a Few Countries
- Air Defence Systems Drive Advanced Weapons Support to Ukraine
- Bilateral Support to Ukraine Reached €342 Billion
- Germany’s Electricity Mix: From Coal to Renewables
- Two Decades of Renewable Energy Growth in Europe
- Germans Earn More Than Foreign Workers Across Germany
- EU Military Manpower Changed Since 2020
- Two Decades of Renewable Energy Growth in Europe
- EU Countries With the Most UEFA Euro Titles
- Germany is Losing €100 Billion Every Year
- Top 20 Largest Employers in Berlin
- Countries Driving Germany’s Quarter Trillion Export Surplus
- Top 10 Richest Women in the EU
- Germany Reintroduced Subsidy on Electric Cars
References
- https://www.tradingview.com/chart
- https://finance.yahoo.com/quote/VOTR.HM/
- https://www.euronews.com/business/2026/03/11/rheinmetall-reports-45-growth-and-defence-pivot-but-shares-fail-to-lift
- https://atlasinstitute.org/germanys-path-to-kriegstuchtigkeit-the-2026-defence-budget/#:~:text=Humanitarian%20emergency%20and%20disaster%20relief,(Einzelplan%2014%2C%202025)
- http://reuters.com/business/german-budget-committee-passes-2026-defence-budget-defence-ministry-says-2025-11-13/
