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Billionaire Bill Ackman Has 56% of His Hedge Fund's $16.5 Billion Portfolio Invested in 3 Outstanding Stocks

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Billionaire Bill Ackman Has 56% of His Hedge Fund's $16.5 Billion Portfolio Invested in 3 Outstanding Stocks

Pershing Square's public-equity exposure is concentrated in three names — Alphabet (22.6% of marketable equities), Brookfield Corp. (17.7%) and Uber Technologies (15.5%) — which Bill Ackman views as undervalued growth compounds. Alphabet is benefiting from AI-led monetization with Google Cloud revenue up 34% YoY and Search accelerating to 15% growth in Q3 2025, has integrated Gemini into products and signed a revenue-generating Gemini deal with Apple, and trades at a forward P/E ~30. Brookfield saw net carried interest rise to $154m in Q3 from $61m a year earlier, expects ~$25bn of net carried interest over the next decade and rapid Wealth Solutions growth (management targets assets doubling in five years and 15% ROE), trading near ~24x trailing distributable earnings. Uber is scaling demand aggregation with monthly active users +17% in Q3, trips per user +4% and 33% adjusted EBITDA growth recently, with enterprise value around 22x trailing adjusted EBITDA.

Analysis

Market structure: Ackman’s public positioning (GOOGL 22.6%, BN 17.7%, UBER 15.5%) spotlights beneficiaries: cloud/AI platform owners (GOOGL) and diversified asset managers/insurance (BN) capture outsized cash flows; demand is shifting from commoditized compute to integrated AI stacks (TPUs + Gemini) which tightens Google’s pricing power versus smaller cloud players. Uber’s role as a demand-aggregator for mobility makes it a likely intermediary beneficiary from autonomous vehicle rollouts, preserving take-rates even if vehicle ownership falls. Cross-asset: stronger AI-driven revenue growth supports equity risk premium compression vs. government bonds; positive tech earnings expectations likely flatten short-dated IV in options but steepen longer-dated term premia; higher insurance asset bases at BN link to credit spreads and rate curves.

Risk assessment: Key tail risks include aggressive antitrust/regulatory action on Google’s search/Apple deal (1-2 year horizon), a fundraising/market-return shock that delays Brookfield’s carried interest realization (12–36 months), and faster-than-expected AV adoption that commoditizes Uber’s margins (3–5 years). Short-term (0–3 months) volatility drivers: quarterly earnings, Apple Siri Gemini rollout timing, and Fed rate guidance which can reprice growth multiples >10% intraday. Hidden dependencies: BN’s earnings rely on private-fund mark-to-market and IRR waterfall timing; GOOGL’s margin upside depends on TPU adoption rates and enterprise contract cadence.

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