In May 2025, the DAX showed a mixed performance, with individual stocks recording significant gains or losses. Especially in the last trading week (KW 22, 23.05.–30.05.2025), the biggest winners and losers were clearly visible.
Biggest Winners in the DAX (May 2025)
Daily and Weekly Winners
- Zalando SE: On May 27, Zalando rose by +5.03% – driven by speculation about restructuring progress and a potential logistics sale.
- QIAGEN N.V.: Also on May 27, QIAGEN gained +2.70%, supported by biotech optimism and acquisition fantasies.
- Siemens Energy AG: With an increase of +2.59%, Siemens Energy benefited from energy policy signals and market calming.
- Rheinmetall AG: Rheinmetall rose by +2.55%, as order fantasies related to Ukraine decisions inspired investors.
- Brenntag SE: Brenntag gained +2.41%, following good North America numbers and dividend fantasies generating buy signals.
Year Overview until the End of May
According to current rankings, the top performers of the year until the end of May include:
- Rheinmetall AG
- Commerzbank
- Siemens Energy AG
- Heidelberg Materials
- Deutsche Bank
However, Deutsche Bank, despite its ranking among the year’s top performers, fell significantly in the last trading week.
Biggest Losers in the DAX (May 2023)
Weekly Losers KW 22/25 (23.–30.05.)
- Deutsche Bank: Decline of -4.84% at the Xetra closing on Friday (23.05.), making it the bottom performer of the week.