CAPITAL FUND MANAGEMENT S.A. TMUS — T-Mobile US Inc

Ownership history in CAPITAL FUND MANAGEMENT S.A.  ·  96 quarters on record

AI Ownership Summary

CAPITAL FUND MANAGEMENT S.A. reported T-Mobile US Inc (TMUS) in 96 quarterly 13F filings from 2024 Q1 through 2026 Q2. Peak portfolio weight reached 0.34% in 2026 Q2. The latest visible filing shows TMUS at 0.34% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this TMUS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CAPITAL FUND MANAGEMENT S.A.'s position in T-Mobile US Inc, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q2

TMUS was reported at 0.34% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.34% in 2026 Q2

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q1 to 2026 Q2

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

TMUS stock page CAPITAL FUND MANAGEMENT S.A. fund profile CAPITAL FUND MANAGEMENT S.A. full holdings
How CAPITAL FUND MANAGEMENT S.A. held TMUS — position size vs. price
% of Fund (quarterly)    TMUS price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 25 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 ADDED — — — 456,839 +391,339 +597.5% 0.34% $76.6M 2026-08-13 $183.38
2026 Q2 ADDED — — — 65,500 +6,900 +11.8% 0.05% $11.0M 2026-08-13 $183.38
2026 Q2 REDUCED — — — 58,600 -228,337 -79.6% 0.04% $9.8M 2026-08-13 $183.38
2026 Q1 ADDED — — — 286,937 +185,737 +183.5% 0.27% $60.3M 2026-05-14 $187.17
2026 Q1 ADDED — — — 101,200 +40,800 +67.5% 0.10% $21.3M 2026-05-14 $187.17
2026 Q1 REDUCED 34.6% -16.7% ✅ 60,400 -31,994 -34.6% 0.06% $12.7M 2026-05-14 $187.17
2025 Q4 REDUCED 64.4% +3.9% ❌ 92,394 -167,106 -64.4% 0.05% $18.8M 2026-02-17 $217.38
2025 Q4 REDUCED 5.1% +3.9% ❌ 259,500 -13,900 -5.1% 0.15% $52.7M 2026-02-17 $217.38
2025 Q4 ADDED — — — 273,400 +174,101 +175.3% 0.15% $55.5M 2026-02-17 $217.38
2025 Q3 ADDED — — — 99,299 +42,099 +73.6% 0.06% $23.8M 2025-11-13 $211.34
2025 Q3 REDUCED 35.7% -14.7% ✅ 57,200 -31,800 -35.7% 0.04% $13.7M 2025-11-13 $211.34
2025 Q3 ADDED — — — 89,000 +11,270 +14.5% 0.06% $21.3M 2025-11-13 $211.34
2025 Q2 REDUCED 38.4% +0.2% ❌ 77,730 -48,470 -38.4% 0.05% $18.5M 2025-08-13 $246.20
2025 Q2 REDUCED 37.3% +0.2% ❌ 126,200 -75,100 -37.3% 0.08% $30.1M 2025-08-13 $246.20
2025 Q2 ADDED — — — 201,300 +80,700 +66.9% 0.13% $48.0M 2025-08-13 $246.20
2025 Q1 REDUCED 12.7% -10.3% ✅ 120,600 -17,500 -12.7% 0.09% $32.2M 2025-05-14 $230.09
2025 Q1 REDUCED — — — 138,100 -4,300 -3.0% 0.11% $36.8M 2025-05-14 $230.09
2024 Q4 ADDED — — — 142,400 +50,700 +55.3% 0.08% $31.4M 2025-02-13 $258.36
2024 Q4 REDUCED 57.8% +21.2% ❌ 91,700 -125,600 -57.8% 0.05% $20.2M 2025-02-13 $258.36
2024 Q3 ADDED — — — 217,300 +82,700 +61.4% 0.12% $44.8M 2024-11-13 $233.93
2024 Q3 REDUCED 36.7% +7.3% ❌ 134,600 -77,900 -36.7% 0.08% $27.8M 2024-11-13 $233.93
2024 Q2 ADDED — — — 212,500 +53,500 +33.6% 0.11% $37.4M 2024-08-13 $189.08
2024 Q2 ADDED — — — 159,000 +49,700 +45.5% 0.08% $28.0M 2024-08-13 $189.08
2024 Q1 REDUCED 53.1% +10.1% ❌ 109,300 -123,800 -53.1% 0.05% $17.8M 2024-05-15 $156.87
2024 Q1 ADDED — — — 233,100 +220,000 +1679.4% 0.11% $38.0M 2024-05-15 $156.87
71 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding TMUS

As of 2026 Q2 — sorted by position size

High Ground Investment Management LLP 3Y 13.11% SOFTBANK GROUP CORP. 3Y 9.23% Hengistbury Investment Partners LLP 3Y 7Y 9.2% Act Two Investors LLC 3Y 7Y 5.12% Garton & Associates Financial Advisors LLC 4.54% Ardmore Road Asset Management LP 3Y 3.79% CapitalatWork S.A. 3.6% Ilex Capital Partners (UK) LLP 3.18% DigitalBridge Group, Inc. 3Y 3.03% Castlefield Investment Partners LLP 2.8%

FAQ About CAPITAL FUND MANAGEMENT S.A. and TMUS

These are the practical questions this page is built to answer before you even open the full history table.

How long has CAPITAL FUND MANAGEMENT S.A. reported owning TMUS?

CAPITAL FUND MANAGEMENT S.A. reported TMUS across 25 quarterly 13F filings, from 2024 Q1 through 2026 Q2.

What was the largest reported TMUS position in CAPITAL FUND MANAGEMENT S.A.'s portfolio?

The largest reported portfolio weight for TMUS was 0.34% in 2026 Q2.

What is the latest reported TMUS position on this page?

The most recent filing on this page is 2026 Q2, when CAPITAL FUND MANAGEMENT S.A. reported 456,839 shares, equal to 0.34% of portfolio, with an estimated market value of $76.6M.

What does the chart on this TMUS ownership page compare?

The chart compares CAPITAL FUND MANAGEMENT S.A.'s quarterly TMUS portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did CAPITAL FUND MANAGEMENT S.A. time their TMUS position?

Based on 13F filing dates vs. subsequent TMUS price moves, CAPITAL FUND MANAGEMENT S.A. correctly timed 54 out of 95 reported position changes (57%). The annualised alpha on TMUS relative to SPY over the holding period was +26.3%.

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