Washington Seizes AI Debate: Between Equity Stakes and Confiscatory Taxation
The Trump administration is actively examining the possibility of taking equity stakes in the most powerful artificial intelligence companies, whilst Senator Bernie Sanders proposes a radical 50 per cent tax on their market capitalisation to fund a sovereign wealth fund. These two approaches, though politically opposed, reflect the same determination by the federal government to capture a share of the jackpot generated by America's technology giants.
The White House's consideration of taking stakes in AI champions represents a logic of strategic control unprecedented since the emergency nationalisations of the 2008 financial crisis. This option, still at an embryonic stage, raises questions about the modalities of state intervention in a sector where the combined market capitalisation of the seven "Magnificent Seven" exceeds $15 trillion. For his part, the proposal from the independent senator from Vermont, the historical architect of the American left, represents a spectacular fiscal escalation that would aim to divert half of the stock market value of AI majors towards a national sovereign wealth fund.
The macroeconomic context renders these debates particularly acute. Massive investments in AI infrastructure — data centres, chips, energy — have already exceeded $200 billion annually in the United States, according to Bureau of Economic Analysis estimates. This technological arms race, led primarily by Microsoft, Alphabet, Amazon, Meta and Nvidia, generates increasing returns but also concentrates systemic risks. The Federal Reserve, in its latest Financial Stability Report, identified excessive valuation in the technology sector as one of the principal vulnerabilities of the American financial system.
In markets, the reaction to these political announcements remains measured but revealing. The Nasdaq 100 index, dominated by technology stocks, displayed volatility above its average over the past five sessions, whilst credit spreads for sector issuers have widened slightly. Institutional investors, through passive index funds that now hold more than 50 per cent of the free float of large technology capitalisations, are directly exposed to any regulatory or fiscal shock. The Bank of England, in its latest Financial Stability Review, has also highlighted potential contagions from a sharp correction in American valuations to European markets, notably via transatlantic capital flows and market correlations.
The FCA and the Prudential Regulation Authority are monitoring these developments closely, given that European alternative investment funds and life insurers hold significant exposures to American technology stocks. A confiscatory 50 per cent tax, even if it appears politically improbable in the short term, would create a major legal precedent for the extraterritorial taxation of capital gains, with direct implications for bilateral tax treaties. The Bank of England, in its recent work on digital taxation, has already pointed to competitive distortions induced by asymmetric tax regimes between the European Union and the United States.
For investors, these American debates redefine the framework for sectoral analysis. The regulatory risk premium on AI stocks should become structurally entrenched, penalising valuation models based on distant cash flows and uncertain operational profitability. Related sectors — energy, data centre real estate, semiconductor equipment manufacturers — are already undergoing a reassessment of demand expectations. In the medium term, state intervention, whatever its form, could accelerate the geopolitical fragmentation of the AI ecosystem, with structural consequences for value chains and investment locations. Long positions in large technology capitalisations now require active hedging against American political risk, hitherto considered marginal.
