Stéphane Boujnah

Stéphane Boujnah is a French business executive who serves as the Chief Executive Officer and Chairman of the Managing Board of Euronext N.V., the pan-European stock exchange operator headquartered in Amsterdam with operations across multiple European countries. Since assuming the role in 2015, he has overseen Euronext's transformation from a primarily Franco-Dutch exchange into a diversified, multi-market infrastructure group spanning seven European countries. Under his leadership, Euronext has pursued an acquisition-driven growth strategy, including the purchases of the Oslo, Dublin, and Milan stock exchanges, as well as a proposed takeover of the Athens Exchange (ATHEX).

Early Career

Before joining Euronext, Boujnah had an extensive career in investment banking and corporate finance.

Leadership at Euronext

Boujnah became CEO and Chairman of the Managing Board of Euronext N.V. in 2015. At the time of his appointment, Euronext had recently been spun off from the Intercontinental Exchange (ICE) through an initial public offering in 2014. He then set about redefining the company's strategic direction, choosing a path that he later described as deliberately divergent from the approaches taken by other major exchange operators. In a November 2025 interview marking his tenth year in charge, Boujnah reflected on the strategic choices that had defined his tenure. He cited the company's achievement of seven consecutive quarters of double-digit revenue growth as validation of the approach. In a December 2025 interview, he explicitly contrasted Euronext's strategy with that of the London Stock Exchange Group (LSEG), which had acquired data provider Refinitiv in a major deal.

Acquisitions and Expansion

During his tenure, Euronext acquired the Irish Stock Exchange (now Euronext Dublin), the Oslo Børs (now Euronext Oslo), and, in its largest transaction, Borsa Italiana (now Euronext Milan), which it purchased from the London Stock Exchange Group in 2021. By 2025, Boujnah had turned his attention to further expansion in southeastern Europe. In July 2025, Euronext submitted an all-share voluntary share exchange offer for the Athens Exchange (ATHEX), the operator of the Greek stock market, as part of a strategy to build out its presence in the region. In November 2025, Boujnah described the potential acquisition of ATHEX as "a landmark opportunity for Greek markets," framing the deal as beneficial for Greece's capital market development and for Euronext's broader European integration strategy. He signaled that his appetite for further acquisitions remained strong even as he prepared to step down from the CEO role. In a late 2025 profile in Financial News London, he indicated that he wanted to complete at least one more significant deal before his departure, which was expected in 2026.

Views on European Capital Markets Consolidation

Throughout his tenure, Boujnah has been a vocal advocate for greater consolidation among European stock exchanges.

Commentary on US Economic Policy

In a July 2025 appearance on Bloomberg's Merryn Talks Money podcast, Boujnah argued that the policies of the Trump administration had transformed what had been described as a "great rotation" of capital flows into a "global reallocation of trust." He contended that investors were beginning to shift capital away from the United States and toward Europe because of concerns about US policy predictability and institutional stability. In the same interview, he suggested that the United States was beginning to resemble an "emerging market" in certain respects, a characterization that attracted significant attention in the financial press.

Planned Departure

By late 2025, it was publicly reported that Boujnah was preparing to step down from the CEO role at Euronext, with an expected departure in 2026. In a November 2025 interview with Markets Media, he discussed the transformation of Euronext over his decade in charge, summarizing the strategic and operational changes that had reshaped the company during his tenure.

Memberships and Affiliations

The commission brings together leaders from North America, Europe, and the Asia-Pacific region to discuss shared challenges in areas including economics, security, and governance.

Legacy

The proposed acquisition of the Athens Exchange, if completed, would further extend Euronext's footprint into southeastern Europe. By 2025, this approach had produced seven consecutive quarters of double-digit revenue growth, a record that Boujnah frequently cited as evidence of the strategy's success. Beyond corporate strategy, he has been a persistent advocate for European capital markets integration. His public calls for consolidation among European exchanges, including the prospect of incorporating the London Stock Exchange into a broader European framework, contributed to an ongoing policy debate about the structure of European financial markets. His pointed commentary on US economic policy in 2025, including the characterization of the US as resembling an "emerging market", positioned him as one of the more outspoken voices in the European financial establishment regarding transatlantic economic relations.