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 35 rows. Rows without a quote are marked unavailable.


1	SPGI	S&P GLOBAL INC	6.33%	Reduce -6.0%	2,878,413	$562.41M	$195.39	No quote
2	ADI	ANALOG DEVICES INC	5.39%	Reduce -6.3%	5,183,969	$479.31M	$92.46	No quote
3	FIS	FIDELITY NATL INFORMATION SV	5.22%	Reduce -6.3%	4,255,326	$464.13M	$109.07	No quote
4	GOOGL	ALPHABET INC	4.78%	Reduce -6.3%	352,095	$425.01M	$1207.08	No quote
5	V	VISA INC	4.58%	Reduce -6.2%	2,714,270	$407.39M	$150.09	No quote
6	ECL	ECOLAB INC	4.08%	Reduce -6.4%	2,314,322	$362.84M	$156.78	No quote
7	BIDU	BAIDU INC	3.95%	Reduce -6.8%	1,535,373	$351.11M	$228.68	No quote
8	ICE	INTERCONTINENTAL EXCHANGE IN	3.92%	Reduce -6.3%	4,650,277	$348.26M	$74.89	No quote
9	WTW	WILLIS TOWERS WATSON PUB LTD	3.89%	Reduce -6.2%	2,457,179	$346.32M	$140.94	No quote
10	ZTS	ZOETIS INC	3.89%	Reduce -6.1%	3,775,991	$345.73M	$91.56	No quote
11	CME	CME GROUP INC	3.68%	Reduce -6.2%	1,922,762	$327.27M	$170.21	No quote
12	AMT	AMERICAN TOWER CORP NEW	3.55%	Reduce -6.3%	2,174,340	$315.93M	$145.30	No quote
13	EFX	EQUIFAX INC	3.53%	Add +29.5%	2,405,738	$314.12M	$130.57	No quote
14	CBRE	CBRE GROUP INC	3.50%	Reduce -6.3%	7,065,039	$311.57M	$44.10	No quote
15	BDX	BECTON DICKINSON & CO	3.06%	Reduce -6.2%	1,042,413	$272.07M	$261.00	No quote
16	A	AGILENT TECHNOLOGIES INC	2.80%	Reduce -6.3%	3,533,178	$249.23M	$70.54	No quote
17	GOOG	ALPHABET INC	2.75%	Reduce -5.7%	205,033	$244.7M	$1193.47	No quote
18	TNET	TRINET GROUP INC	2.68%	Reduce -6.3%	4,232,618	$238.38M	No quote	No quote
19	ST	SENSATA TECHNOLOGIES HLDNG P	2.52%	Reduce -6.2%	4,531,051	$224.51M	$49.55	No quote
20	AVGO	BROADCOM INC	2.52%	Reduce -34.8%	908,028	$224.04M	$246.73	No quote
21	AON	AON PLC	2.27%	Reduce -6.3%	1,310,282	$201.5M	$153.78	No quote
22	INTC	INTEL CORP	2.21%	Add +69.7%	4,158,903	$196.67M	$47.29	No quote
23	VRSN	VERISIGN INC	1.99%	Reduce -6.6%	1,106,114	$177.11M	$160.12	No quote
24	META	FACEBOOK INC	1.99%	Reduce -6.4%	1,075,697	$176.91M	$164.46	No quote
25	TSM	TAIWAN SEMICONDUCTOR MFG LTD	1.97%	Reduce -6.2%	3,962,255	$174.97M	$44.16	No quote
26	FAST	FASTENAL CO	1.96%	Reduce -6.3%	2,998,735	$173.99M	$58.02	No quote
27	CMPR	CIMPRESS N V	1.83%	Reduce -6.5%	1,192,602	$162.92M	No quote	No quote
28	SSNC	SS&C TECHNOLOGIES HLDGS INC	1.66%	Reduce -6.0%	2,598,071	$147.65M	$56.83	No quote
29	IBKR	INTERACTIVE BROKERS GROUP IN	1.63%	Add +5.7%	2,615,325	$144.65M	$55.31	No quote
30	CACC	CREDIT ACCEP CORP MICH	1.50%	Reduce -6.4%	303,625	$133.01M	$438.07	No quote
31	TMO	THERMO FISHER SCIENTIFIC INC	1.47%	New	535,849	$130.79M	$244.08	No quote
32	PRI	PRIMERICA INC	1.27%	Reduce -6.8%	937,310	$112.99M	$120.55	No quote
33	AWI	ARMSTRONG WORLD INDS INC NEW	0.84%	Reduce -7.0%	1,070,589	$74.51M	$69.60	No quote
34	SERV	SERVICEMASTER GLOBAL HLDGS I	0.78%	Reduce -80.9%	1,121,189	$69.55M	No quote	No quote
35	AGN	ALLERGAN PLC	-	Sold	0	$0	No quote	No quote