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 34 of 36 rows. Rows without a quote are marked unavailable.


1	SPGI	S&P GLOBAL INC	7.86%	Reduce -1.2%	2,608,414	$940.59M	$360.60
2	FIS	FIDELITY NATL INFORMATION SV	4.99%	Reduce -1.0%	4,052,289	$596.54M	$147.21
3	ADI	ANALOG DEVICES INC	4.82%	Reduce -1.1%	4,935,044	$576.12M	$116.74
4	V	VISA INC	4.32%	Reduce -1.1%	2,584,741	$516.87M	$199.97
5	AMT	AMERICAN TOWER CORP NEW	4.20%	Reduce -1.1%	2,076,425	$501.93M	$241.73
6	GOOGL	ALPHABET INC	4.11%	Reduce -1.1%	335,423	$491.6M	$1465.60
7	WTW	WILLIS TOWERS WATSON PLC LTD	4.10%	Reduce -0.9%	2,347,168	$490.14M	$208.82
8	ZTS	ZOETIS INC	4.04%	Reduce -1.1%	2,919,668	$482.83M	$165.37
9	ICE	INTERCONTINENTAL EXCHANGE IN	3.70%	Reduce -1.2%	4,427,534	$442.98M	$100.05
10	ECL	ECOLAB INC	3.68%	Reduce -1.0%	2,202,550	$440.16M	$199.84
11	TMO	THERMO FISHER SCIENTIFIC INC	3.58%	Reduce -1.2%	968,981	$427.82M	$441.52
12	AVGO	BROADCOM INC	3.54%	Reduce -1.0%	1,162,796	$423.63M	$364.32
13	A	AGILENT TECHNOLOGIES INC	3.47%	Reduce -1.0%	4,117,277	$415.6M	$100.94
14	EFX	EQUIFAX INC	3.00%	Reduce -1.0%	2,289,609	$359.24M	$156.90
15	CBRE	CBRE GROUP INC	2.65%	Reduce -1.0%	6,739,521	$316.56M	$46.97
16	CME	CME GROUP INC	2.57%	Reduce -1.0%	1,834,578	$306.94M	$167.31
17	TSM	TAIWAN SEMICONDUCTOR MFG LTD	2.56%	Reduce -1.0%	3,776,668	$306.18M	$81.07
18	VRSN	VERISIGN INC	2.54%	Reduce -1.2%	1,480,473	$303.28M	$204.85
19	ADSK	AUTODESK INC	2.48%	Reduce -1.0%	1,285,218	$296.9M	$231.01
20	AON	AON PLC	2.41%	Reduce -1.1%	1,395,669	$287.93M	$206.30
21	BDX	BECTON DICKINSON & CO	2.34%	Reduce -1.0%	1,201,954	$279.67M	$232.68
22	FAST	FASTENAL CO	2.32%	Reduce -1.1%	6,151,042	$277.35M	$45.09
23	META	FACEBOOK INC	2.24%	Reduce -0.9%	1,023,788	$268.13M	$261.90
24	SSNC	SS&C TECHNOLOGIES HLDGS INC	2.09%	Reduce -1.4%	4,123,623	$249.56M	$60.52
25	GOOG	ALPHABET INC	2.07%	Reduce -0.9%	168,383	$247.46M	$1469.60
26	BC	BRUNSWICK CORP	2.02%	Reduce -1.3%	4,104,084	$241.77M	$58.91
27	TNET	TRINET GROUP INC	2.00%	Reduce -0.8%	4,030,574	$239.09M	No quote	No quote
28	AMAT	APPLIED MATLS INC	1.95%	Reduce -1.1%	3,925,384	$233.36M	$59.45
29	ENTG	ENTEGRIS INC	1.63%	Reduce -1.4%	2,622,712	$194.97M	$74.34
30	MCO	MOODYS CORP	1.44%	Reduce -0.8%	595,775	$172.69M	$289.85
31	MSFT	MICROSOFT CORP	1.17%	Reduce -1.1%	667,051	$140.3M	$210.33
32	IBKR	INTERACTIVE BROKERS GROUP IN	1.01%	Reduce -1.0%	2,488,447	$120.27M	$48.33
33	PRI	PRIMERICA INC	1.00%	Reduce -1.3%	1,054,643	$119.32M	$113.14
34	CACC	CREDIT ACCEP CORP MICH	0.82%	Reduce -1.2%	288,590	$97.73M	$338.64
35	AWI	ARMSTRONG WORLD INDS INC	0.73%	Reduce -0.9%	1,269,230	$87.34M	$68.81
36	GRA	GRACE W R & CO DEL NEW	0.56%	Reduce -1.2%	1,666,267	$67.13M	No quote	No quote