Wealth management and software giants like SAP and Dassault Systemes tumbled in European markets following a similar Wall Street retreat. The selloff was triggered by Altruist, an AI-powered tax-strategy tool that disrupted traditional financial services firms, causing investors to reassess the sector's vulnerability to automation.

Meanwhile, Elliot Investment Management has built a significant stake in London Stock Exchange Group as the FTSE 100 index owner contends with AI disruption and declining listings. LSEG shares jumped as much as 8.4% in early London trading Wednesday, marking the biggest intraday gain in over three months.

The divergent market reactions highlight how AI is reshaping financial services. While traditional wealth management firms face existential threats, companies providing infrastructure for new trading technologies attract investor interest. This bifurcation suggests the market is actively pricing in AI's disruptive impact across different segments of the financial industry.