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 35 of 38 rows. Rows without a quote are marked unavailable.


1	SPGI	S&P GLOBAL INC	6.74%	Reduce -1.7%	2,327,426	$988.9M	$424.89
2	GOOGL	ALPHABET INC	5.69%	Reduce -1.6%	311,989	$834.11M	$2673.52
3	A	AGILENT TECHNOLOGIES INC	3.90%	Reduce -1.6%	3,628,722	$571.63M	$157.53
4	ADI	ANALOG DEVICES INC	3.89%	Reduce -1.7%	3,403,479	$570.01M	$167.48
5	EFX	EQUIFAX INC	3.68%	Reduce -1.6%	2,130,761	$539.98M	$253.42
6	V	VISA INC	3.67%	Reduce -1.7%	2,413,372	$537.58M	$222.75
7	AVGO	BROADCOM INC	3.58%	Reduce -1.5%	1,082,706	$525.04M	$484.93
8	TMO	THERMO FISHER SCIENTIFIC INC	3.51%	Reduce -1.7%	901,211	$514.89M	$571.33
9	AMT	AMERICAN TOWER CORP NEW	3.50%	Reduce -1.7%	1,934,586	$513.46M	$265.41
10	ICE	INTERCONTINENTAL EXCHANGE IN	3.24%	Reduce -1.6%	4,134,701	$474.75M	$114.82
11	AMAT	APPLIED MATLS INC	3.22%	Reduce -1.7%	3,668,926	$472.3M	$128.73
12	FIS	FIDELITY NATL INFORMATION SV	3.14%	Reduce -1.5%	3,787,345	$460.84M	$121.68
13	CBRE	CBRE GROUP INC	3.05%	Reduce -1.8%	4,596,661	$447.53M	$97.36
14	ZTS	ZOETIS INC	2.92%	Reduce -1.7%	2,206,564	$428.38M	$194.14
15	META	FACEBOOK INC	2.77%	Reduce -1.6%	1,198,787	$406.86M	$339.39
16	ECL	ECOLAB INC	2.68%	Reduce -1.7%	1,882,356	$392.7M	$208.62
17	TSM	TAIWAN SEMICONDUCTOR MFG LTD	2.68%	Reduce -1.6%	3,516,896	$392.66M	$111.65
18	BC	BRUNSWICK CORP	2.66%	Add +5.2%	4,098,379	$390.45M	$95.27
19	WTW	WILLIS TOWERS WATSON PLC LTD	2.65%	Reduce -1.6%	1,668,708	$387.91M	$232.46
20	AON	AON PLC	2.52%	Reduce -1.8%	1,293,142	$369.54M	$285.77
21	VRSN	VERISIGN INC	2.46%	Reduce -1.6%	1,760,022	$360.82M	$205.01
22	GOOG	ALPHABET INC	2.44%	Reduce -1.5%	134,425	$358.28M	$2665.31
23	TNET	TRINET GROUP INC	2.42%	Reduce -1.5%	3,760,211	$355.64M	No quote	No quote
24	ADSK	AUTODESK INC	2.33%	Reduce -1.6%	1,198,122	$341.67M	$285.17
25	CME	CME GROUP INC	2.26%	Reduce -1.5%	1,710,603	$330.8M	$193.38
26	FAST	FASTENAL CO	2.02%	Reduce -1.6%	5,727,645	$295.6M	$51.61
27	MSFT	MICROSOFT CORP	1.90%	Reduce -1.9%	988,417	$278.66M	$281.92
28	CTXS	CITRIX SYS INC	1.89%	Reduce -1.4%	2,583,172	$277.36M	No quote	No quote
29	BDX	BECTON DICKINSON & CO	1.87%	Reduce -1.8%	1,118,342	$274.91M	$245.82
30	ENTG	ENTEGRIS INC	1.87%	Reduce -1.5%	2,181,573	$274.66M	$125.90
31	IQV	IQVIA HLDGS INC	1.84%	Reduce -1.7%	1,128,213	$270.25M	$239.54
32	SSNC	SS&C TECHNOLOGIES HLDGS INC	1.82%	Reduce -2.0%	3,841,840	$266.62M	$69.40
33	MCO	MOODYS CORP	1.34%	Reduce -1.9%	552,503	$196.2M	$355.11
34	CACC	CREDIT ACCEP CORP MICH	1.07%	Reduce -2.3%	268,874	$157.37M	$585.30
35	PRI	PRIMERICA INC	1.02%	Reduce -2.3%	975,320	$149.84M	$153.63
36	IBKR	INTERACTIVE BROKERS GROUP IN	0.99%	Reduce -1.4%	2,325,818	$144.99M	$62.34
37	AWI	ARMSTRONG WORLD INDS INC NEW	0.77%	Reduce -2.0%	1,178,741	$112.54M	$95.47
38	NLSN	NIELSEN HLDGS PLC	-	Sold	0	$0	No quote	No quote