Stock Market Week 21/26: RENIXX Jumps Above 1,500 Points – Ballard Power, Enphase, and First Solar Post Double-Digit Gains – New Yearly High at the Start of the Week

Münster – The RENIXX continued its mini-rally last week and temporarily surpassed the 1,500-point mark on Friday. There were no major analyst upgrades or target price revisions. The development was instead driven by sector-specific trends.

The renewable energy stock index RENIXX World rose by 3.9% last week to 1,490.68 points (closing price, 22/05/2026). Price movements were driven by improved operational visibility for Ballard Power due to European fleet projects, stabilizing solar market expectations for Enphase, and the ongoing AI-driven electricity demand trend acting as an indirect demand catalyst. The strongest gainers last week were Ballard Power (+25.9%), Enphase Energy (+21.5%), and First Solar (+10.4%). They were followed by Grenergy Renovables (+9.9%) and Bloom Energy (+9.2%). The biggest losses were recorded by Cadeler (-10.0%), Green Plains (-9.2%), JinkoSolar (-7.1%), China Longyuan (-6.9%), and Xinyi Solar (-6.3%). Based on the current closing price, the RENIXX year-to-date performance stands at +31.9%.

Corporate News Week 21/26

Ballard Power is further strengthening its position in the European bus market by integrating its FCmove®-HD systems into serial platforms of established manufacturers such as Wrightbus and Solaris. The focus is on the transition from individual pilot projects to standardized fleet applications in urban and regional transport, where range, fast refueling, and high vehicle availability are key operational requirements. In Cottbus, initial vehicles of a larger fuel cell bus fleet operated by Cottbusverkehr are being gradually introduced into regular service and tested under real operating conditions. In Krefeld, the transport operator SWK Mobil continues expanding its hydrogen bus fleet in cooperation with bus manufacturer Solaris Bus & Coach. The Ballard Power stock gained 25.9% over the week to a price of EUR 4.77.

Plug Power is involved in several hydrogen projects in the United Kingdom and is supplying electrolyzers for these initiatives. For Plug Power, the investment decision marks another step in its European expansion strategy. The company refers to a global project pipeline of more than USD 2 billion and to projects in the UK and other European markets, including Spain. The stock ended the week slightly up by 0.3% at EUR 3.26.

Nordex has received new orders totaling 82 MW from Westfälisch-Niedersächsische Energie GmbH & Co. KG (WNE). With these new orders, WNE continues its existing cooperation with Nordex. In March 2026, WNE had already ordered three turbines for the Marienmünster-Altenbergen wind farm. Nordex also announced last week that production has started at its new rotor blade manufacturing facility in Menemen near Izmir, Turkey. The turbine manufacturer is expanding its industrial production base for the onshore wind market. The site is intended to supply both the Turkish market and future European wind energy projects. Nordex shares fell by 5.2% over the week to EUR 42.70.

Technical Situation: RENIXX Breaks Above 1,500 Points

The RENIXX has recently accelerated its upward movement and marked a new yearly high of 1,509.53 points on a closing basis on 25/05/2026. The overall chart picture remains clearly positive. The previously broken range of 1,280 to 1,300 points is now confirmed as a key support zone and the starting point of the recent upward movement. Below that, the 1,200-point zone remains an important medium-term reference level, while the long-term support base remains in the 1,000 to 1,100 point range.

RENIXX Closes at New Yearly High at the Start of the Week

On the recent Whit Monday, the index continued its upward trend and closed at a new yearly high of 1,509.53 points. Top performers were Ballard Power, Bloom Energy, Cadeler A/S, Xpeng, and Erg S.p.A. Slight losses were recorded by Northland Power, Verbund, JinkoSolar, Nordex, and Boralex.

About the Global Renewable Energy Stock Index RENIXX World and the Planned RENIXX ETF

The RENIXX® World (Renewable Energy Industrial Index, ISIN: DE000RENX014) is the world’s first stock index for renewable energy and the oldest global market barometer for this industrial future sector. It covers wind power, solar energy, bioenergy, geothermal energy, hydropower, electromobility, hydrogen, and fuel cells.

The index comprises 30 international companies with the highest free-float market capitalization and reflects both performance and global market development of the renewable energy industry. RENIXX started on 1 May 2006 with a base value of 1,000 points; historical back-calculations were made to 2002. The index is available via major financial data providers such as Bloomberg, Reuters, the 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 RENIXX transparent, regulated, and investable. The implementation is planned in cooperation with an established white-label ETF provider.

Source: IWR Online, 26 May 2026