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 33 of 34 rows. Rows without a quote are marked unavailable.


1	SPGI	S&P GLOBAL INC	6.65%	Reduce -6.9%	2,617,857	$714.81M	$273.05	No quote
2	ADI	ANALOG DEVICES INC	5.47%	Reduce -2.1%	4,951,321	$588.42M	$118.84	No quote
3	FIS	FIDELITY NATL INFORMATION SV	5.26%	Reduce -2.2%	4,063,064	$565.13M	$139.09	No quote
4	V	VISA INC	4.53%	Reduce -2.1%	2,593,852	$487.39M	$187.90	No quote
5	AMT	AMERICAN TOWER CORP NEW	4.45%	Reduce -2.1%	2,081,808	$478.44M	$229.82	No quote
6	WTW	WILLIS TOWERS WATSON PUB LTD	4.42%	Reduce -2.1%	2,351,499	$474.86M	$201.94	No quote
7	GOOGL	ALPHABET INC	4.19%	Reduce -2.1%	336,508	$450.72M	$1339.39	No quote
8	ZTS	ZOETIS INC	4.11%	Reduce -9.4%	3,341,120	$442.2M	$132.35	No quote
9	ECL	ECOLAB INC	3.97%	Reduce -2.2%	2,209,564	$426.42M	$192.99	No quote
10	CBRE	CBRE GROUP INC	3.85%	Reduce -2.3%	6,753,335	$413.91M	$61.29	No quote
11	ICE	INTERCONTINENTAL EXCHANGE IN	3.82%	Reduce -2.3%	4,438,139	$410.75M	$92.55	No quote
12	CME	CME GROUP INC	3.43%	Reduce -2.2%	1,838,174	$368.96M	$200.72	No quote
13	AVGO	BROADCOM INC	3.42%	Reduce -2.1%	1,164,439	$367.99M	$316.02	No quote
14	A	AGILENT TECHNOLOGIES INC	3.27%	Reduce -2.2%	4,124,586	$351.87M	$85.31	No quote
15	BDX	BECTON DICKINSON & CO	3.05%	Reduce -2.0%	1,205,651	$327.9M	$271.97	No quote
16	EFX	EQUIFAX INC	2.99%	Reduce -2.2%	2,298,137	$322.02M	$140.12	No quote
17	TMO	THERMO FISHER SCIENTIFIC INC	2.94%	Reduce -2.1%	971,781	$315.7M	$324.87	No quote
18	AON	AON PLC	2.71%	Reduce -2.1%	1,399,372	$291.48M	$208.29	No quote
19	VRSN	VERISIGN INC	2.66%	Reduce -2.1%	1,485,486	$286.22M	$192.68	No quote
20	SSNC	SS&C TECHNOLOGIES HLDGS INC	2.36%	Reduce -2.4%	4,137,480	$254.04M	$61.40	No quote
21	ADSK	AUTODESK INC	2.20%	New	1,288,774	$236.44M	$183.46	No quote
22	TNET	TRINET GROUP INC	2.13%	Reduce -2.1%	4,040,469	$228.73M	No quote	No quote
23	FAST	FASTENAL CO	2.12%	Reduce -2.1%	6,177,501	$228.26M	$36.95	No quote
24	GOOG	ALPHABET INC	2.10%	Reduce -15.6%	168,647	$225.49M	$1337.02	No quote
25	TSM	TAIWAN SEMICONDUCTOR MFG LTD	2.05%	Reduce -2.1%	3,788,284	$220.1M	$58.10	No quote
26	META	FACEBOOK INC	1.96%	Reduce -1.9%	1,027,946	$210.99M	$205.25	No quote
27	BC	BRUNSWICK CORP	1.91%	Reduce -1.9%	3,426,284	$205.51M	$59.98	No quote
28	MCO	MOODYS CORP	1.32%	Reduce -1.9%	597,188	$141.78M	$237.41	No quote
29	ENTG	ENTEGRIS INC	1.23%	Add +23.8%	2,651,101	$132.79M	$50.09	No quote
30	CACC	CREDIT ACCEP CORP MICH	1.19%	Reduce -2.2%	290,390	$128.45M	$442.33	No quote
31	AWI	ARMSTRONG WORLD INDS INC NEW	1.11%	Reduce -2.7%	1,268,338	$119.19M	$93.97	No quote
32	PRI	PRIMERICA INC	1.09%	Reduce -2.2%	896,545	$117.05M	$130.56	No quote
33	IBKR	INTERACTIVE BROKERS GROUP IN	1.08%	Reduce -2.1%	2,502,438	$116.66M	$46.62	No quote
34	ST	SENSATA TECHNOLOGIES HLDNG P	0.95%	Reduce -57.0%	1,905,823	$102.67M	$53.87	No quote