---
title: "TCI Fund Management Put 27% of $53.6B Into GE Aerospace in Q4 2025 — a Nine-Stock Portfolio Built on Monopoly Economics"
type: research
slug: tci-fund-management-q4-2025-ge-aerospace-27-percent-nine-stock-portfolio
canonical_url: https://13finsight.com/research/tci-fund-management-q4-2025-ge-aerospace-27-percent-nine-stock-portfolio
published_at: 2026-03-09T18:18:33.252Z
updated_at: 2026-03-23T07:03:56.880Z
author: Marcus Chen
author_title: Senior Market Analyst
author_url: https://13finsight.com/authors/marcus-chen
word_count: 494
locale: en
source: 13F Insight
---

# TCI Fund Management Put 27% of $53.6B Into GE Aerospace in Q4 2025 — a Nine-Stock Portfolio Built on Monopoly Economics

> Chris Hohn's TCI Fund Management held just 9 positions worth $53.6B in Q4 2025. GE Aerospace topped the book at 27.3%, followed by Visa at 18.1% and Microsoft at 15.1%.

TL;DRAUM: $53.6B across 9 holdings (Q4 2025)Top holding: GE Aerospace (GE) at 27.3% — $14.6B#2: Visa (V) at 18.1% — $9.7B#3: Microsoft (MSFT) at 15.1% — $8.1BTop-5 concentration: 84.7% of portfolioAUM surge: $21.7B (Q3) → $53.6B (Q4), a +147% QoQ jumpHoldings count: 5 (Q3) → 9 (Q4) — four names addedKey theme: Every holding is a toll-booth business with pricing powerThe Nine-Stock Toll-Booth PortfolioTCI Fund Management, run by British billionaire Chris Hohn, is among the most concentrated mega-funds in the world. The Q4 2025 filing reveals a $53.6B portfolio spread across just 9 names — every one of them a business with monopoly or duopoly characteristics.The top three — GE Aerospace, Visa, and Microsoft — account for 60.5% of the total portfolio. Add Moody's (MCO) at 12.7% and S&P Global (SPGI) at 11.5%, and the top five control 84.7%.GE Aerospace: The Conviction BetAt 27.3% ($14.6B, 47.5M shares), GE Aerospace is a position that would make most risk managers uncomfortable. After the GE three-way split, the aerospace unit inherited the jet engine duopoly with Rolls-Royce. TCI clearly sees this as a multi-decade toll booth on global air travel growth.Payment Rails and Data MonopoliesVisa (18.1%) and the credit rating duopoly of Moody's (12.7%) plus S&P Global (11.5%) share a common trait: they extract a small fee from enormous transaction volumes. Microsoft (15.1%) fits the same template through enterprise software lock-in.The Tail: Transportation InfrastructureCanadian Pacific Kansas City (CP) at 6.5% ($3.5B) and Canadian National Railway (CNI) at 1.8% ($974M) represent TCI's infrastructure allocation. Alphabet (GOOG) at 4.4% ($2.4B) and Ferrovial SE at 2.5% ($1.3B) round out the portfolio.The AUM Explosion: $21.7B to $53.6BThe most striking feature of this filing is the AUM jump. TCI went from $21.7B in Q3 to $53.6B in Q4 — a 147% increase in a single quarter. This almost certainly reflects new capital inflows or a restructuring of reporting entities rather than pure market appreciation. The holdings count jumped from 5 to 9, suggesting previously unreported positions were consolidated into this filing.What Analysts Might Misread"TCI's AUM doubled because Hohn is bullish"The Q3-to-Q4 jump is too large to be organic performance. This likely reflects a reporting change (additional vehicles now filing under the TCI umbrella) rather than a sudden surge of conviction."This is a tech fund"Only Microsoft and Alphabet are pure tech names (19.5% combined). The portfolio is better described as a toll-booth collection: jet engines, payment rails, credit ratings, railways, and software subscriptions.Frequently Asked QuestionsWhat does TCI Fund Management invest in?TCI specializes in highly concentrated positions in businesses with monopoly or duopoly pricing power — primarily jet engines (GE Aerospace), payment networks (Visa), data monopolies (Moody's, S&P Global), and enterprise software (Microsoft).How many stocks does TCI hold?As of Q4 2025, TCI holds just 9 positions, making it one of the most concentrated $50B+ funds in the institutional landscape.What is TCI Fund Management's largest holding?GE Aerospace at 27.3% of the portfolio ($14.6 billion), representing one of the largest single-stock bets among major institutional investors.

---

Source: 13F Insight — https://13finsight.com/research/tci-fund-management-q4-2025-ge-aerospace-27-percent-nine-stock-portfolio
Author: Marcus Chen — https://13finsight.com/authors/marcus-chen
Last updated: 2026-03-23T07:03:56.880Z