William Von Mueffling - Cantillon Capital Management

As of Q2 2026, William Von Mueffling reported 27 long-equity positions worth $665.11M in aggregate.

Copy-investor backtest

Latest quarter: -1.15%
1-year: +7.19%
3-year: +60.66%
5-year: +50.59%
3-year vs S&P 500: -3.00%
5-year vs S&P 500: -15.58%
5-year top 5: +109.94%

Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. The vs S&P 500 figures subtract SPY over that manager's own rebalance dates, so both sides cover the same days; both are price return, excluding dividends. Method & limitations.

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Filing period

Updated 2026-06-06 from SEC 13F data.

Live quotes available for 31 of 34 rows. Rows without a quote are marked unavailable.


1	SPGI	S&P GLOBAL INC	6.46%	Reduce -0.5%	2,886,936	$607.85M	$210.55	No quote
2	ADI	ANALOG DEVICES INC	5.81%	Reduce -0.5%	5,195,684	$546.95M	$105.27	No quote
3	FIS	FIDELITY NATL INFORMATION SV	5.12%	Reduce -0.5%	4,261,387	$481.96M	$113.10	No quote
4	WTW	WILLIS TOWERS WATSON PUB LTD	4.61%	Reduce -0.3%	2,467,627	$433.44M	$175.65	No quote
5	AMT	AMERICAN TOWER CORP NEW	4.57%	Reduce -0.4%	2,181,922	$429.97M	$197.06	No quote
6	V	VISA INC	4.52%	Reduce -0.4%	2,722,450	$425.22M	$156.19	No quote
7	GOOGL	ALPHABET INC	4.41%	Reduce -0.5%	352,912	$415.34M	$1176.89	No quote
8	ECL	ECOLAB INC	4.36%	Reduce -0.4%	2,322,326	$409.98M	$176.54	No quote
9	ZTS	ZOETIS INC	4.05%	Reduce -0.5%	3,783,425	$380.88M	$100.67	No quote
10	ICE	INTERCONTINENTAL EXCHANGE IN	3.78%	Reduce -0.4%	4,666,050	$355.27M	$76.14	No quote
11	CBRE	CBRE GROUP INC	3.72%	Reduce -0.5%	7,080,311	$350.12M	$49.45	No quote
12	CME	CME GROUP INC	3.37%	Reduce -0.5%	1,926,804	$317.11M	$164.58	No quote
13	AVGO	BROADCOM INC	3.22%	Add +9.8%	1,006,774	$302.75M	$300.71	No quote
14	EFX	EQUIFAX INC	3.04%	Reduce -0.4%	2,411,525	$285.77M	$118.50	No quote
15	A	AGILENT TECHNOLOGIES INC	3.02%	Reduce -0.5%	3,539,625	$284.52M	$80.38	No quote
16	VRSN	VERISIGN INC	3.00%	Reduce -0.4%	1,556,694	$282.63M	$181.56	No quote
17	TMO	THERMO FISHER SCIENTIFIC INC	2.97%	Reduce -0.3%	1,021,745	$279.67M	$273.72	No quote
18	BDX	BECTON DICKINSON & CO	2.77%	Reduce -0.7%	1,043,728	$260.65M	$249.73	No quote
19	TNET	TRINET GROUP INC	2.69%	Reduce -0.4%	4,242,453	$253.44M	No quote	No quote
20	AON	AON PLC	2.67%	Add +11.3%	1,469,331	$250.82M	$170.70	No quote
21	GOOG	ALPHABET INC	2.57%	Reduce -0.3%	205,783	$241.45M	$1173.31	No quote
22	SSNC	SS&C TECHNOLOGIES HLDGS INC	2.40%	Reduce -0.3%	3,551,141	$226.17M	$63.69	No quote
23	INTC	INTEL CORP	2.38%	Reduce -0.5%	4,171,211	$223.99M	$53.70	No quote
24	FAST	FASTENAL CO	2.21%	Reduce -0.3%	3,230,525	$207.76M	$64.31	No quote
25	ST	SENSATA TECHNOLOGIES HLDNG P	2.17%	Reduce -0.5%	4,534,978	$204.17M	$45.02	No quote
26	META	FACEBOOK INC	1.91%	Reduce -0.6%	1,076,916	$179.51M	$166.69	No quote
27	TSM	TAIWAN SEMICONDUCTOR MFG LTD	1.73%	Reduce -0.5%	3,973,957	$162.77M	$40.96	No quote
28	CACC	CREDIT ACCEP CORP MICH	1.47%	Reduce -0.5%	305,094	$137.88M	$451.93	No quote
29	IBKR	INTERACTIVE BROKERS GROUP IN	1.44%	Reduce -0.8%	2,618,638	$135.86M	$51.88	No quote
30	PRI	PRIMERICA INC	1.22%	Reduce -0.4%	940,765	$114.92M	$122.15	No quote
31	MCO	MOODYS CORP	1.20%	Reduce -0.5%	625,445	$113.26M	$181.09	No quote
32	AWI	ARMSTRONG WORLD INDS INC NEW	1.13%	Reduce -0.5%	1,336,024	$106.11M	$79.42	No quote
34	CMPR	CIMPRESS N V	-	Sold	0	$0	No quote	No quote
33	BIDU	BAIDU INC	-	Sold	0	$0	No quote	No quote