Green Stocks: RENIXX Rises 21 Percent in First Half of 2026
Münster — The RENIXX World (Renewable Energy Industrial Index), the global stock index for renewable energy, closed the first half of 2026 with a significant gain. The index rose from 1,130.37 points to 1,367.92 points at the half-year close (June 30, 2026), an increase of 237.55 points, or 21.0 percent. The renewable energy index advanced sharply in a market environment marked by geopolitical tensions, inflation concerns, volatile oil prices and AI-driven demand.
Oil Prices, Iran Conflict and AI Data Center Demand Shape First-Half Trading
RENIXX performance in the first half of 2026 was driven by two opposing macroeconomic forces. On the downside, oil prices fluctuated following a conflict linked to Iran that escalated in late February 2026, temporarily blocking the Strait of Hormuz and pushing prices from pre-conflict levels (Brent at around USD 72 per barrel) well above the USD 100 mark. Concerns over rising inflation and, in turn, higher interest rates added further pressure on investment decisions in the renewable energy sector.
On the upside, rapidly rising electricity demand from AI data centers provided additional momentum. Fuel cell and renewable energy solutions can be deployed considerably faster than large-scale power plants or nuclear facilities, allowing them to benefit disproportionately from the short-term surge in demand — reflected in particular in Bloom Energy's share price gain. The continued rapid pace of global wind and solar capacity growth underscored the same trend.
Oil prices gradually eased following an April ceasefire, the reopening of the Strait of Hormuz and an OPEC+ decision in June to raise output. The RENIXX benefited from this easing, reaching a first-half high of 1,533.57 points on June 2, 2026, before ending the half at 1,367.92 points after a volatile consolidation phase, with the index's uptrend remaining intact above its 200-day moving average.
Index Reconstitution Effective July 1, 2026: CATL Replaces Boralex
The reconstitution taking effect July 1, 2026 is part of the RENIXX's regular minor adjustment as of June 30, 2026, under which Boralex will exit the index. In March 2026, Brookfield Asset Management and Canada's La Caisse de dépôt et placement du Québec announced the acquisition of the company, offering Boralex shareholders USD 37.25 per share in cash — a premium of about 31.8 percent to the March 20, 2026 closing price — valuing the company at approximately USD 9 billion. The deal, unanimously approved by Boralex's board, is expected to close by the fourth quarter of 2026, subject to regulatory approval.
The change also marks a structural expansion of the index. With CATL's inclusion, the RENIXX will for the first time feature a company from the energy storage/battery segment, a category not previously represented alongside wind, solar, bioenergy, geothermal energy, hydropower, electric mobility, hydrogen and fuel cells. Given the growing role of battery storage in integrating renewable energy into power grids, the RENIXX will now cover an additional segment of the global energy transition.
CATL, one of the world's leading battery manufacturers, joins the index. Founded in 2011, the company says it is the world's largest producer of lithium-ion batteries for electric vehicles. It generated revenue of about USD 59 billion in 2025 and has been listed on the Shenzhen stock exchange since 2018, with an additional listing in Hong Kong since May 2025.
About the RENIXX World Index
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 the sector. It covers wind energy, solar energy, bioenergy, geothermal energy, hydropower, electric mobility, hydrogen and fuel cells.
The index comprises 30 international companies with the highest free-float market capitalization and tracks both the performance and the global market development of the renewable energy industry.
The RENIXX launched on May 1, 2006 with a base value of 1,000 points; a retroactive calculation back to 2002 has also been carried out. The index is available through leading financial media and data providers including Bloomberg, Reuters, Financial Times, BlackRock (Aladdin) and Wallstreet Online.
Source: IWR Online, 02 Jul 2026
