Air Liquide Temporarily Claims Third Spot in CAC 40, Overtaking Airbus

Air Liquide’s recent stock market rally has propelled the French industrial gas specialist to a provisional third place among the most influential companies in the CAC 40, edging out Airbus. As of early November 2026, Air Liquide accounts for approximately 6.5% of the Paris index, compared to 6.45% for the aerospace manufacturer. This narrow margin highlights the growing weight of semiconductor and artificial intelligence (AI) related activities in financial markets.

Strong Year-to-Date Performance

According to data reported by Agence Option Finance (AOF) on November 2 and analyzed by Zonebourse, Air Liquide shares have gained 24% since the beginning of the year. This stands in stark contrast to the CAC 40, which has declined by 1.8% over the same period.

This robust performance, driven by the group’s latest financial results and the dynamism of its electronics division, allowed Air Liquide to surpass Airbus in the index weighting hierarchy. The early November ranking places TotalEnergies at the top with approximately 9.9% of the CAC 40, followed by Schneider Electric at 7.7%. Air Liquide holds the third position with 6.5%, while Airbus trails closely behind at 6.45%. However, the gap remains extremely tight; minor stock market fluctuations could easily reverse these positions.

Riding the AI and Semiconductor Wave

Beyond its stock price performance, the evolution of the group’s business activities sheds light on investor interest. Air Liquide is indirectly benefiting from the global acceleration in AI investments, particularly through the increasing demand for high-purity industrial gases and advanced materials in the semiconductor industry.

The group’s Q3 2026 results, published on October 29, confirm this momentum:

Revenue: Reached nearly €7.3 billion as of September 30.
Growth: Up 4.3% excluding foreign exchange and energy effects, and 3% on a comparable basis.
Electronics Division: Contributed significantly to this growth, posting a 12% increase for the quarter.

While the electronics activity represents about 10% of the revenue for the Gaz & Services branch, it plays a much more significant role in the group’s future investment plans. Air Liquide noted that investments currently in execution have reached a record high of €6.2 billion. Notably, investments in electronics have nearly doubled in the first nine months of 2026 compared to the entire year of 2025.

Strategic Plan BEYOND 2030

On October 5, Air Liquide unveiled its new strategic plan, BEYOND, with a 2030 horizon. Key targets include:

An average annual growth of 10% (±2 points) in recurring net profit per share.
A recurring return on employed capital exceeding 11% by 2030.

Conclusion

The third spot in the CAC 40 remains fiercely contested between Air Liquide and Airbus. However, behind this stock market rivalry lies a broader trend: industrial activities that power new technological infrastructures are gaining significant visibility and favorability among investors.