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	6.40%	Reduce -0.5%	2,595,713	$853.29M	$328.73
2	ADI	ANALOG DEVICES INC	5.44%	Reduce -0.5%	4,910,681	$725.46M	$147.73
3	GOOGL	ALPHABET INC	4.39%	Reduce -0.4%	334,004	$585.39M	$1752.64
4	FIS	FIDELITY NATL INFORMATION SV	4.28%	Reduce -0.5%	4,033,105	$570.52M	$141.46
5	V	VISA INC	4.22%	Reduce -0.4%	2,573,794	$562.97M	$218.73
6	ICE	INTERCONTINENTAL EXCHANGE IN	3.81%	Reduce -0.5%	4,406,168	$507.99M	$115.29
7	AVGO	BROADCOM INC	3.79%	Reduce -0.7%	1,154,896	$505.67M	$437.85
8	WTW	WILLIS TOWERS WATSON PLC LTD	3.69%	Reduce -0.6%	2,333,044	$491.53M	$210.68
9	A	AGILENT TECHNOLOGIES INC	3.64%	Reduce -0.6%	4,092,752	$484.95M	$118.49
10	ZTS	ZOETIS INC	3.61%	Reduce -0.3%	2,910,287	$481.65M	$165.50
11	ECL	ECOLAB INC	3.55%	Reduce -0.6%	2,190,316	$473.9M	$216.36
12	AMT	AMERICAN TOWER CORP NEW	3.48%	Reduce -0.5%	2,066,147	$463.77M	$224.46
13	TMO	THERMO FISHER SCIENTIFIC INC	3.37%	Reduce -0.5%	964,200	$449.11M	$465.78
14	EFX	EQUIFAX INC	3.30%	Reduce -0.3%	2,281,774	$440.02M	$192.84
15	CBRE	CBRE GROUP INC	3.14%	Reduce -0.9%	6,676,525	$418.75M	$62.72
16	TSM	TAIWAN SEMICONDUCTOR MFG LTD	3.07%	Reduce -0.6%	3,753,709	$409.3M	$109.04
17	ADSK	AUTODESK INC	2.93%	Reduce -0.4%	1,279,572	$390.7M	$305.34
18	AMAT	APPLIED MATLS INC	2.52%	Reduce -0.9%	3,890,325	$335.74M	$86.30
19	CME	CME GROUP INC	2.48%	Reduce -0.9%	1,817,062	$330.8M	$182.05
20	TNET	TRINET GROUP INC	2.42%	Reduce -0.5%	4,009,377	$323.16M	No quote	No quote
21	VRSN	VERISIGN INC	2.39%	Reduce -0.5%	1,473,799	$318.93M	$216.40
22	BC	BRUNSWICK CORP	2.34%	Reduce -0.5%	4,085,616	$311.49M	$76.24
23	FAST	FASTENAL CO	2.24%	Reduce -0.5%	6,122,311	$298.95M	$48.83
24	SSNC	SS&C TECHNOLOGIES HLDGS INC	2.24%	Reduce -0.4%	4,105,440	$298.67M	$72.75
25	BDX	BECTON DICKINSON & CO	2.23%	Reduce -1.0%	1,190,036	$297.77M	$250.22
26	GOOG	ALPHABET INC	2.20%	Reduce -0.5%	167,472	$293.39M	$1751.88
27	AON	AON PLC	2.20%	Reduce -0.7%	1,386,579	$292.94M	$211.27
28	META	FACEBOOK INC	2.09%	Reduce -0.5%	1,018,524	$278.22M	$273.16
29	ENTG	ENTEGRIS INC	1.88%	Reduce -0.5%	2,609,800	$250.8M	$96.10
30	MCO	MOODYS CORP	1.29%	Reduce -0.7%	591,561	$171.7M	$290.24
31	IBKR	INTERACTIVE BROKERS GROUP IN	1.13%	Reduce -0.4%	2,478,421	$150.99M	$60.92
32	MSFT	MICROSOFT CORP	1.11%	Reduce -0.4%	664,113	$147.71M	$222.42
33	PRI	PRIMERICA INC	1.05%	Reduce -1.0%	1,043,938	$139.81M	$133.93
34	CACC	CREDIT ACCEP CORP MICH	0.74%	Reduce -1.6%	283,968	$98.29M	$346.14
35	AWI	ARMSTRONG WORLD INDS INC	0.69%	Reduce -1.9%	1,245,260	$92.64M	$74.39
36	GRA	GRACE W R & CO DEL NEW	0.67%	Reduce -2.0%	1,633,651	$89.56M	No quote	No quote