<div id="readability-page-1"><p><img width="1536" height="1024" src="https://imageproxy.pbkrs.com/https://invezz.com/wp-content/uploads/2025/11/20251126_1614_Reichstag-Amid-Clouds_simple_compose_01kazw328qenctx7y0e64zsxkz.png?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" original-src="https://imageproxy.pbkrs.com/https://invezz.com/wp-content/uploads/2025/11/20251126_1614_Reichstag-Amid-Clouds_simple_compose_01kazw328qenctx7y0e64zsxkz.png"/></p><p>The DAX Index had a strong performance in 2025 as it jumped by 22%, which mirrored the growth of other global indices like the S&amp;P 500 and the Dow Jones indices. It was trading at €24,340, up by 32% from its lowest level in April.</p><p>However, the index has remained in a narrow range of between €23,030 and €24,665 since May this year. This article looks at the best and worst-performing companies in the index this year.</p><figure><img width="1024" height="579" src="https://imageproxy.pbkrs.com/https://invezz.com/wp-content/uploads/2025/12/DAX-Index-1024x579.png?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" original-src="https://imageproxy.pbkrs.com/https://invezz.com/wp-content/uploads/2025/12/DAX-Index-1024x579.png"/><figcaption><em>DAX Index performance in 2025 | Source: TradingView</em></figcaption></figure><h2>Rheinmetall’s stock price soared amid demand sure</h2><p>Rheinmetall, the biggest defense contractor in Germany, was the best-performing company in the German DAX Index as it jumped by ~150%. </p><p>The company’s business has continued doing well as Germany and other European countries have boosted their defense spending. Indeed, Donald Trump has pressured NATO members to boost their spending to 5% of the GDP, a move that will benefit the bloc’s defence contractors.</p><p>Rheinmetall’s revenue jumped by 20% in the third quarter to €75 billion, with its backlog soaring to over 64 billion euros. Therefore, the stock surge is mostly because analysts expect that the company will become a major challenger to its American rivals like RTX and Lockheed Martin.</p><h2>Siemens Energy stock soared amid power demand </h2><p>Siemens Energy share price jumped by 140% this year, making it one of the best-performing companies in the DAX Index. It has now jumped by over 333% in the last three years, marking a strong turnaround for a company that was about to collapse a few years ago.</p><p>Siemens Energy’s stock price mirrored the performance of GE Vernova<strong>, </strong>its biggest rival in the energy equipment industry. The companies are benefiting from the ongoing energy demand because of the ongoing artificial intelligence boom.</p><p>This boom has led to more demand, with its annual revenue soaring by 17% to over €59 billion. Most notably, Siemens Gamesa, its wind business, returned to growth, with its revenue rising by 30% to €9.32 billion.</p><h2>Commerzbank shares jumped amid acquisition hopes</h2><p>Commerzbank stock price jumped by 126% this year for two main reasons. First, the rally mirrored the performance of other European banks like Lloyds, Société Générale, and Deutsche Bank. Indeed, Deutsche Bank stock jumped by 100% and was the fourth best performer.</p><p>Second, the stock did well, and hopes remained that Commerzbank will make a bid for the company, potentially in the coming year. An acquisition would help to boost the performance of the stock as the company will need to pay a premium.</p><h2>Bayer stock jumped as its crop science division improved</h2><p>Bayer was the fifth-best performing company in the DAX Index as it jumped by 86% this year. This surge happened as the embattled company published several encouraging financial results, helped by its pharmaceutical and crop science businesses. </p><p>These numbers helped to boost its forward guidance, with its revenue expected to be between €46 billion and €48 billion.</p><p>Most recently, the company said that its crop science business strengthened, which helped it to offset the performance of its consumer business.</p><p>The other top gainers in the DAX Index were companies like RWE, Fresenius, Deutsche Post, Continental, and Allianz.</p><p>On the other hand, the top laggards in the index were companies like Symrise, Adidas, Beiersdorf, Zalando, and Vonovia.</p><p>The post DAX Index’s best and worst performers in 2025 appeared first on Invezz</p></div>

SIEGY

<p>In 2025, the DAX Index rose by 22%, trading at €24,340, up 32% from April's low. Rheinmetall led with a 150% increase due to boosted defense spending. Siemens Energy surged 140% amid rising power demand. Commerzbank rose 126% on acquisition hopes. Bayer climbed 86% with strong crop science results. Other gainers included RWE and Allianz. Laggards were Symrise, Adidas, and Zalando.</p>