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 33 rows. Rows without a quote are marked unavailable.


1	SPGI	S&P GLOBAL INC	6.51%	Reduce -2.0%	2,829,604	$644.56M	$227.79	No quote
2	ADI	ANALOG DEVICES INC	5.81%	Reduce -2.0%	5,092,571	$574.8M	$112.87	No quote
3	FIS	FIDELITY NATL INFORMATION SV	5.18%	Reduce -1.9%	4,179,553	$512.75M	$122.68	No quote
4	V	VISA INC	4.67%	Reduce -2.1%	2,665,843	$462.66M	$173.55	No quote
5	WTW	WILLIS TOWERS WATSON PUB LTD	4.67%	Reduce -2.1%	2,415,021	$462.57M	$191.54	No quote
6	ECL	ECOLAB INC	4.54%	Reduce -2.1%	2,274,394	$449.06M	$197.44	No quote
7	AMT	AMERICAN TOWER CORP NEW	4.42%	Reduce -2.0%	2,137,968	$437.11M	$204.45	No quote
8	ZTS	ZOETIS INC	4.25%	Reduce -2.0%	3,708,300	$420.86M	$113.49	No quote
9	ICE	INTERCONTINENTAL EXCHANGE IN	3.97%	Reduce -1.9%	4,575,273	$393.2M	$85.94	No quote
10	GOOGL	ALPHABET INC	3.79%	Reduce -1.9%	346,131	$374.79M	$1082.80	No quote
11	CME	CME GROUP INC	3.70%	Reduce -2.0%	1,888,098	$366.5M	$194.11	No quote
12	CBRE	CBRE GROUP INC	3.60%	Reduce -2.0%	6,941,678	$356.11M	$51.30	No quote
13	AVGO	BROADCOM INC	3.48%	Add +19.0%	1,197,873	$344.82M	$287.86	No quote
14	EFX	EQUIFAX INC	3.23%	Reduce -2.0%	2,363,230	$319.6M	$135.24	No quote
15	VRSN	VERISIGN INC	3.22%	Reduce -2.1%	1,524,343	$318.83M	$209.16	No quote
16	BDX	BECTON DICKINSON & CO	3.15%	Add +18.7%	1,238,445	$312.1M	$252.01	No quote
17	A	AGILENT TECHNOLOGIES INC	2.98%	Add +11.5%	3,945,223	$294.59M	$74.67	No quote
18	TMO	THERMO FISHER SCIENTIFIC INC	2.97%	Reduce -2.0%	1,000,981	$293.97M	$293.68	No quote
19	TNET	TRINET GROUP INC	2.86%	Reduce -1.8%	4,167,719	$282.57M	No quote	No quote
20	AON	AON PLC	2.80%	Reduce -2.1%	1,437,834	$277.47M	$192.98	No quote
21	SSNC	SS&C TECHNOLOGIES HLDGS INC	2.48%	Add +20.0%	4,262,655	$245.57M	$57.61	No quote
22	ST	SENSATA TECHNOLOGIES HLDNG P	2.20%	Reduce -2.0%	4,444,361	$217.77M	$49.00	No quote
23	GOOG	ALPHABET INC	2.20%	Reduce -2.1%	201,472	$217.77M	$1080.91	No quote
24	FAST	FASTENAL CO	2.09%	Add +96.1%	6,335,959	$206.49M	$32.59	No quote
25	META	FACEBOOK INC	2.06%	Reduce -1.7%	1,058,899	$204.37M	$193.00	No quote
26	TSM	TAIWAN SEMICONDUCTOR MFG LTD	1.55%	Reduce -1.7%	3,907,411	$153.05M	$39.17	No quote
27	CACC	CREDIT ACCEP CORP MICH	1.46%	Reduce -2.2%	298,427	$144.39M	$483.83	No quote
28	IBKR	INTERACTIVE BROKERS GROUP IN	1.41%	Reduce -1.7%	2,573,615	$139.49M	$54.20	No quote
29	AWI	ARMSTRONG WORLD INDS INC NEW	1.28%	Reduce -2.2%	1,307,014	$127.04M	$97.20	No quote
30	MCO	MOODYS CORP	1.21%	Reduce -2.1%	612,481	$119.62M	$195.31	No quote
31	BC	BRUNSWICK CORP	1.13%	New	2,434,616	$111.72M	$45.89	No quote
32	PRI	PRIMERICA INC	1.12%	Reduce -1.9%	923,022	$110.72M	$119.95	No quote
33	INTC	INTEL CORP	-	Sold	0	$0	No quote	No quote