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


1	SPGI	S&P GLOBAL INC	6.72%	Reduce -2.8%	3,063,265	$624.57M	$203.89	No quote
2	ADI	ANALOG DEVICES INC	5.72%	Reduce -2.7%	5,535,062	$530.92M	$95.92	No quote
3	FIS	FIDELITY NATL INFORMATION SV	5.18%	Reduce -2.8%	4,539,450	$481.32M	$106.03	No quote
4	GOOGL	ALPHABET INC	4.57%	Reduce -2.8%	375,829	$424.38M	$1129.19	No quote
5	BIDU	BAIDU INC	4.31%	Reduce -2.3%	1,646,627	$400.13M	$243.00	No quote
6	WTW	WILLIS TOWERS WATSON PUB LTD	4.27%	Reduce -2.7%	2,618,507	$396.97M	$151.60	No quote
7	V	VISA INC	4.13%	Reduce -2.7%	2,893,552	$383.25M	$132.45	No quote
8	ICE	INTERCONTINENTAL EXCHANGE IN	3.93%	Reduce -2.8%	4,963,364	$365.06M	$73.55	No quote
9	CBRE	CBRE GROUP INC	3.88%	Add +9.0%	7,543,472	$360.13M	$47.74	No quote
10	SERV	SERVICEMASTER GLOBAL HLDGS I	3.76%	Reduce -2.9%	5,871,695	$349.19M	No quote	No quote
11	ECL	ECOLAB INC	3.73%	Reduce -2.9%	2,471,577	$346.84M	$140.33	No quote
12	ZTS	ZOETIS INC	3.69%	Reduce -2.7%	4,023,120	$342.73M	$85.19	No quote
13	AVGO	BROADCOM INC	3.64%	New	1,393,059	$338.01M	$242.64	No quote
14	CME	CME GROUP INC	3.62%	Reduce -2.8%	2,050,748	$336.16M	$163.92	No quote
15	AMT	AMERICAN TOWER CORP NEW	3.60%	Reduce -2.7%	2,319,452	$334.4M	$144.17	No quote
16	BDX	BECTON DICKINSON & CO	2.87%	Reduce -2.7%	1,111,320	$266.23M	$239.56	No quote
17	TNET	TRINET GROUP INC	2.72%	Add +9.0%	4,514,891	$252.56M	No quote	No quote
18	GOOG	ALPHABET INC	2.61%	Reduce -2.8%	217,495	$242.65M	$1115.65	No quote
19	A	AGILENT TECHNOLOGIES INC	2.51%	Reduce -2.7%	3,770,779	$233.19M	$61.84	No quote
20	EFX	EQUIFAX INC	2.50%	Reduce -2.9%	1,857,752	$232.42M	$125.11	No quote
21	ST	SENSATA TECHNOLOGIES HLDNG P	2.48%	Reduce -2.7%	4,832,438	$229.93M	$47.58	No quote
22	META	FACEBOOK INC	2.40%	Add +58.5%	1,148,707	$223.22M	$194.32	No quote
23	AON	AON PLC	2.06%	Add +53.2%	1,397,690	$191.72M	$137.17	No quote
24	CMPR	CIMPRESS N V	1.99%	Reduce -2.9%	1,275,730	$184.93M	No quote	No quote
25	VRSN	VERISIGN INC	1.75%	Reduce -2.9%	1,184,305	$162.75M	$137.42	No quote
26	IBKR	INTERACTIVE BROKERS GROUP IN	1.72%	Reduce -2.7%	2,473,537	$159.32M	$64.41	No quote
27	TSM	TAIWAN SEMICONDUCTOR MFG LTD	1.66%	Reduce -3.0%	4,222,961	$154.39M	$36.56	No quote
28	FAST	FASTENAL CO	1.66%	New	3,201,206	$154.07M	$48.13	No quote
29	SSNC	SS&C TECHNOLOGIES HLDGS INC	1.54%	Reduce -2.5%	2,763,546	$143.43M	$51.90	No quote
30	INTC	INTEL CORP	1.31%	New	2,450,142	$121.8M	$49.71	No quote
31	CACC	CREDIT ACCEP CORP MICH	1.23%	Reduce -3.1%	324,360	$114.63M	$353.40	No quote
32	PRI	PRIMERICA INC	1.08%	Add +10.3%	1,006,041	$100.2M	$99.60	No quote
33	AWI	ARMSTRONG WORLD INDS INC NEW	0.78%	New	1,150,668	$72.72M	$63.20	No quote
34	AGN	ALLERGAN PLC	0.37%	Reduce -79.8%	204,467	$34.09M	No quote	No quote
36	AVGO	BROADCOM LTD	-	Sold	0	$0	No quote	No quote
35	BITA	BITAUTO HLDGS LTD	-	Sold	0	$0	No quote	No quote