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


1	SPGI	S&P GLOBAL INC	6.84%	Reduce -2.4%	3,150,060	$601.85M	$191.06	No quote
2	ADI	ANALOG DEVICES INC	5.89%	Reduce -2.0%	5,690,260	$518.55M	$91.13	No quote
3	FIS	FIDELITY NATL INFORMATION SV	5.11%	Reduce -1.9%	4,670,317	$449.75M	$96.30	No quote
4	WTW	WILLIS TOWERS WATSON PUB LTD	4.66%	Reduce -2.1%	2,691,220	$409.58M	$152.19	No quote
5	GOOGL	ALPHABET INC	4.56%	Reduce -2.0%	386,580	$400.94M	$1037.14	No quote
6	BIDU	BAIDU INC	4.28%	Reduce -2.0%	1,686,034	$376.31M	$223.19	No quote
7	ICE	INTERCONTINENTAL EXCHANGE IN	4.21%	Reduce -2.1%	5,105,459	$370.25M	$72.52	No quote
8	V	VISA INC	4.05%	Reduce -1.9%	2,975,221	$355.9M	$119.62	No quote
9	ECL	ECOLAB INC	3.96%	Reduce -2.0%	2,544,157	$348.73M	$137.07	No quote
10	AMT	AMERICAN TOWER CORP NEW	3.94%	Reduce -1.9%	2,384,428	$346.55M	$145.34	No quote
11	ZTS	ZOETIS INC	3.92%	Reduce -17.5%	4,134,677	$345.29M	$83.51	No quote
12	CME	CME GROUP INC	3.88%	Reduce -2.0%	2,108,730	$341.07M	$161.74	No quote
13	AVGO	BROADCOM LTD	3.83%	Add +20.0%	1,430,924	$337.2M	$235.65	No quote
14	CBRE	CBRE GROUP INC	3.72%	Reduce -2.1%	6,923,433	$326.92M	$47.22	No quote
15	SERV	SERVICEMASTER GLOBAL HLDGS I	3.50%	Reduce -2.0%	6,047,047	$307.49M	No quote	No quote
16	A	AGILENT TECHNOLOGIES INC	2.95%	Reduce -14.8%	3,874,935	$259.23M	$66.90	No quote
17	ST	SENSATA TECHNOLOGIES HLDNG P	2.93%	New	4,968,450	$257.51M	$51.83	No quote
18	BDX	BECTON DICKINSON & CO	2.81%	Reduce -2.2%	1,142,180	$247.51M	$216.70	No quote
19	GOOG	ALPHABET INC	2.62%	Reduce -2.4%	223,695	$230.81M	$1031.79	No quote
20	EFX	EQUIFAX INC	2.56%	Reduce -2.0%	1,912,156	$225.27M	$117.81	No quote
21	CMPR	CIMPRESS N V	2.31%	Reduce -1.8%	1,313,609	$203.22M	No quote	No quote
22	TNET	TRINET GROUP INC	2.18%	Add +5.8%	4,140,605	$191.79M	No quote	No quote
23	TSM	TAIWAN SEMICONDUCTOR MFG LTD	2.16%	Add +64.0%	4,351,374	$190.42M	$43.76	No quote
24	IBKR	INTERACTIVE BROKERS GROUP IN	1.94%	Add +24.6%	2,541,244	$170.87M	$67.24	No quote
25	AGN	ALLERGAN PLC	1.93%	Reduce -1.9%	1,010,756	$170.1M	No quote	No quote
26	SSNC	SS&C TECHNOLOGIES HLDGS INC	1.73%	Add +72.7%	2,834,465	$152.04M	$53.64	No quote
27	VRSN	VERISIGN INC	1.64%	Reduce -1.9%	1,220,192	$144.67M	$118.56	No quote
28	AON	AON PLC	1.46%	Reduce -1.9%	912,129	$128M	$140.33	No quote
29	META	FACEBOOK INC	1.32%	New	724,909	$115.83M	$159.79	No quote
30	CACC	CREDIT ACCEP CORP MICH	1.26%	Reduce -2.0%	334,823	$110.63M	$330.41	No quote
31	PRI	PRIMERICA INC	1.00%	Reduce -1.7%	911,746	$88.07M	$96.60	No quote
32	BITA	BITAUTO HLDGS LTD	0.85%	Reduce -16.2%	3,550,000	$75.08M	No quote	No quote
33	ST	SENSATA TECHNOLOGIES HLDG NV	-	Sold	0	$0	No quote	No quote