William Von Mueffling - Cantillon Capital Management
Superinvestor profile · Rank #127 by reported 13F value (2026 Q2 filers) · CIK 0001279936 · All profiles
Founded 2003New York, New York, U.S.Long-only equity, high return-on-equity valueKey person: William Von Mueffling
Reported 13F value
$665M
Period 2026-06-30 · Filed 2026-07-29
Positions
27
Top 10 = 61.7% of value
Clone CAGR (full window)
+17.4%
2016-11-07 → 2026-10-02 · cumulative +388%
SPY CAGR (same window)
+15.7%
Cumulative +323%
Max drawdown (monthly)
-32%
Month-end values, approximate
Latest-quarter activity
0 new · 11 exited
0 increased · 27 decreased
Hypothetical clone — not this fund's returns. The performance on this page replicates only the long U.S. equity positions disclosed on this manager's Form 13F filings, rebalanced on filing dates at disclosed weights with dividend-adjusted prices. It excludes shorts, bonds, cash, non-U.S. listings, private holdings, leverage and fees. Treat it as a measure of how the disclosed stock picks performed, never as the fund's track record. Evidence: filing-by-filing dossier (PDF) · Methodology (PDF)
Clone performance
| Window | Clone CAGR | Note |
|---|---|---|
| Full window (2016-11-07 → 2026-10-02, 40 filings) | +17.36% | Cumulative +387.6% vs SPY +322.8% |
| Trailing 10Y | — | |
| Trailing 5Y | +11.60% | |
| Trailing 3Y | +23.09% | |
| Trailing 1Y | +10.71% |
Top holdings — 2026 Q2 filing
| Ticker | Company | Weight | Reported value |
|---|---|---|---|
| AVGO | Broadcom Inc | 10.61% | $71M |
| GOOGL | Alphabet Inc | 9.19% | $61M |
| TSM | Taiwan Semiconductor Manufac | 8.24% | $55M |
| IBKR | Interactive Brokers Group In | 6.78% | $45M |
| AMAT | Applied Matls Inc | 5.45% | $36M |
| ADI | Analog Devices Inc | 5.26% | $35M |
| SPGI | S&P Global Inc | 4.36% | $29M |
| V | Visa Inc | 4.31% | $29M |
| MSFT | Microsoft Corp | 3.86% | $26M |
| CBRE | Cbre Group Inc | 3.67% | $24M |
As reported on the 2026-06-30 Form 13F (filed 2026-07-29). Full holdings and quarter changes: holdings page.
Filing history in this profile
Every clone input traces to one of these SEC filings. 98.6% of the latest filing's reported value is covered by our price history; the remainder is mostly non-U.S. listings, recent IPOs or delisted names and is excluded from the clone.
Background (founded / HQ / style) source: https://marketrealist.com/2014/02/cantillon-capital-managements-investment-strategy/ — New York-based firm founded in 2003 by William von Mueffling, formerly head of Lazard Asset Management's hedge fund group; closed its long/short strategies in June 2009 and continued as long-only.