Stock Market Week 22/26: RENIXX Extends Rally – Index Hits Three-Year High – SolarEdge, First Solar, Sunrun and Ballard Power Surge Double-Digits
Münster – The RENIXX extended its rally last week and reached a new three-year high on Thursday. The index is currently being driven by several long-term trends, including sustained strong demand from AI and data centers, as well as an increasing focus on energy security, storage solutions and resilient energy systems.
Analyst and Market Drivers in Focus
The RENIXX development is currently being supported by structural trends such as rising demand from AI and data centers, energy security considerations, and investments in storage and grid infrastructure. Solar stocks such as SolarEdge and First Solar benefited from stabilizing market expectations in the solar sector, falling storage costs, and improving long-term demand prospects for decentralized energy systems. Ballard Power is gaining momentum from improved prospects in the European hydrogen bus market, particularly the shift toward larger fleets in regular public transport operations. Additional tailwinds come from recent assessments by BloombergNEF, IEA and Wood Mackenzie, which expect continued global growth in battery storage, power grids and flexible energy systems. Integrated solutions combining solar, storage and flexible power supply are increasingly seen as key to meeting the rapidly rising electricity demand from AI and digital infrastructure.
Corporate News Week 22/26
Nordex continues to expand its market position in the Turkish wind energy sector. A new large order and the start of rotor blade production in Izmir strengthen local value creation and underline Turkey’s strategic importance for the wind turbine manufacturer. The turbines are ordered by Turkish energy company Eksim Enerji A.S. The contract includes the supply and installation of 16 wind turbines of the N175/6.X type with a total installed capacity of 110 MW. The new rotor blade facility was commissioned in Menemen near Izmir. However, Nordex shares did not benefit and fell by 3.2% to EUR 41.32.
Cadeler A/S has launched a share buyback program with a volume of up to DKK 7.6 million (around EUR 700,000). The program started on 27 May 2026 and runs until 5 June 2026, unless the maximum volume is reached earlier. It is based on authorization granted by the Annual General Meeting on 21 April 2026. The aim of the program is to meet obligations arising from share-based remuneration schemes for employees of the Danish offshore wind installation specialist. Cadeler shares declined by 1.2% to EUR 5.60.
Technical Outlook: RENIXX Hits New Three-Year High
The RENIXX has further accelerated its upward trend in recent weeks and reached a new three-year high of 1,527 points on 28/05/2026. This marks its highest level since June 2023 and confirms the breakout above the psychologically important 1,500-point mark.
The chart picture remains clearly positive. The index continues to trade above all key moving averages (MA20, MA50 and MA200), confirming an intact medium-term uptrend. At the same time, the RSI indicator stands at around 68 points, remaining in a neutral-to-high range and not yet signaling overbought conditions.
In the short term, consolidation could occur at any time after the strong rally. However, the technical outlook remains constructive as long as the index holds above the former breakout zone between 1,280 and 1,300 points. The 1,500-point level is now emerging as the first key short-term support zone.
RENIXX Starts Week Higher
At the start of the week, the RENIXX edges higher. Early gainers include Xpeng, Cadeler, Scatec ASA, SolarEdge and Vestas. Losers include Goldwind, Bloom Energy, Xinyi Solar, BYD and China Longyuan.
About the Global RENIXX World Index and Planned ETF
The RENIXX® World (Renewable Energy Industrial Index, ISIN: DE000RENX014) is the world’s first stock index for renewable energy and the oldest global benchmark for this industrial future sector. It covers wind, solar, bioenergy, geothermal energy, hydropower, electromobility, hydrogen and fuel cells.
The index includes 30 international companies with the highest free-float market capitalization and reflects both the performance and global market development of the renewable energy industry.
The RENIXX was launched on 1 May 2006 with a base value of 1,000 points; a back-calculation to 2002 was also performed. The index is available via major financial data providers such as Bloomberg, Reuters, Financial Times, BlackRock (Aladdin) and Wallstreet Online.
On the occasion of its 20th anniversary, IWR plans to launch an exchange-traded fund (ETF) that will make the RENIXX transparent, regulated and investable. Implementation is planned in cooperation with an established white-label ETF provider.
Source: IWR Online, 01 Jun 2026
