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


1	SPGI	S&P GLOBAL INC	6.69%	Reduce -0.7%	2,810,567	$688.53M	$244.98	No quote
2	ADI	ANALOG DEVICES INC	5.50%	Reduce -0.6%	5,059,946	$565.35M	$111.73	No quote
3	FIS	FIDELITY NATL INFORMATION SV	5.36%	Reduce -0.6%	4,154,006	$551.49M	$132.76	No quote
4	AMT	AMERICAN TOWER CORP NEW	4.57%	Reduce -0.6%	2,125,626	$470.04M	$221.13	No quote
5	WTW	WILLIS TOWERS WATSON PUB LTD	4.51%	Reduce -0.5%	2,401,869	$463.49M	$192.97	No quote
6	ZTS	ZOETIS INC	4.46%	Reduce -0.6%	3,686,472	$459.3M	$124.59	No quote
7	V	VISA INC	4.43%	Reduce -0.6%	2,649,239	$455.7M	$172.01	No quote
8	ECL	ECOLAB INC	4.35%	Reduce -0.7%	2,258,359	$447.25M	$198.04	No quote
9	GOOGL	ALPHABET INC	4.08%	Reduce -0.7%	343,771	$419.79M	$1221.14	No quote
10	ICE	INTERCONTINENTAL EXCHANGE IN	4.08%	Reduce -0.7%	4,543,897	$419.27M	$92.27	No quote
11	CME	CME GROUP INC	3.86%	Reduce -0.5%	1,878,995	$397.11M	$211.34	No quote
12	CBRE	CBRE GROUP INC	3.56%	Reduce -0.5%	6,909,083	$366.25M	$53.01	No quote
13	EFX	EQUIFAX INC	3.21%	Reduce -0.6%	2,349,091	$330.45M	$140.67	No quote
14	AVGO	BROADCOM INC	3.19%	Reduce -0.7%	1,190,051	$328.54M	$276.07	No quote
15	A	AGILENT TECHNOLOGIES INC	3.14%	Add +6.9%	4,216,472	$323.11M	$76.63	No quote
16	BDX	BECTON DICKINSON & CO	3.03%	Reduce -0.6%	1,230,670	$311.31M	$252.96	No quote
17	TMO	THERMO FISHER SCIENTIFIC INC	2.81%	Reduce -0.8%	992,864	$289.19M	$291.27	No quote
18	VRSN	VERISIGN INC	2.78%	Reduce -0.4%	1,517,615	$286.27M	$188.63	No quote
19	AON	AON PLC	2.69%	Reduce -0.6%	1,429,051	$276.62M	$193.57	No quote
20	TNET	TRINET GROUP INC	2.50%	Reduce -0.9%	4,128,870	$256.77M	No quote	No quote
21	GOOG	ALPHABET INC	2.37%	Reduce -0.8%	199,835	$243.6M	$1219.00	No quote
22	ST	SENSATA TECHNOLOGIES HLDNG P	2.15%	Reduce -0.4%	4,426,862	$221.61M	$50.06	No quote
23	SSNC	SS&C TECHNOLOGIES HLDGS INC	2.12%	Reduce -0.6%	4,237,401	$218.52M	$51.57	No quote
24	FAST	FASTENAL CO	2.00%	Reduce -0.4%	6,308,021	$206.08M	$32.67	No quote
25	META	FACEBOOK INC	1.81%	Reduce -1.0%	1,048,079	$186.64M	$178.08	No quote
26	BC	BRUNSWICK CORP	1.77%	Add +43.5%	3,492,394	$182.02M	$52.12	No quote
27	TSM	TAIWAN SEMICONDUCTOR MFG LTD	1.75%	Reduce -0.9%	3,870,375	$179.9M	$46.48	No quote
28	IBKR	INTERACTIVE BROKERS GROUP IN	1.34%	Reduce -0.7%	2,555,209	$137.42M	$53.78	No quote
29	CACC	CREDIT ACCEP CORP MICH	1.33%	Reduce -0.5%	296,877	$136.95M	$461.31	No quote
30	AWI	ARMSTRONG WORLD INDS INC NEW	1.23%	Reduce -0.3%	1,303,076	$126.01M	$96.70	No quote
31	MCO	MOODYS CORP	1.21%	Reduce -0.6%	608,960	$124.73M	$204.83	No quote
32	PRI	PRIMERICA INC	1.13%	Reduce -0.7%	916,933	$116.66M	$127.23	No quote
33	ENTG	ENTEGRIS INC	0.98%	New	2,140,678	$100.74M	$47.06	No quote