{
  "data": {
    "slug": "william-von-mueffling",
    "name": "William von Mueffling",
    "fund": "Cantillon Capital Management",
    "role": "Founder & CIO",
    "philosophy": "High-quality businesses at reasonable valuations. Global long.",
    "bio": "Former Lazard star PM who founded Cantillon in 2003. Known for a highly research-driven, long-biased strategy focused on return-on-capital compounders. Low drawdowns, patient capital.",
    "longest_holding": "Microsoft (since 2012)",
    "quality_score": 8,
    "cagr_10y": 10.7,
    "holdings": [
      {
        "ticker": "MSFT",
        "name": "Microsoft",
        "pct": 7.8,
        "shares_mn": 0.8,
        "thesis": "Core compounder."
      },
      {
        "ticker": "MCO",
        "name": "Moody's",
        "pct": 6.4,
        "shares_mn": 0.35,
        "thesis": "Credit rating duopoly."
      },
      {
        "ticker": "V",
        "name": "Visa",
        "pct": 6.1,
        "shares_mn": 0.6,
        "thesis": "Payment network."
      },
      {
        "ticker": "ICE",
        "name": "Intercontinental Exchange",
        "pct": 5.8,
        "shares_mn": 0.4,
        "thesis": "Exchange + data compounder."
      },
      {
        "ticker": "SPGI",
        "name": "S&P Global",
        "pct": 5.5,
        "shares_mn": 0.15,
        "thesis": "Index + ratings."
      },
      {
        "ticker": "CSU.TO",
        "name": "Constellation Software",
        "pct": 4.9,
        "shares_mn": 0.03,
        "thesis": "Serial software acquirer."
      }
    ],
    "recent_moves": [
      {
        "quarter": "2025-Q4",
        "ticker": "MCO",
        "action": "add",
        "delta_pct": 10,
        "portfolio_impact_pct": 6.4
      },
      {
        "quarter": "2025-Q4",
        "ticker": "ICE",
        "action": "add",
        "delta_pct": 15,
        "portfolio_impact_pct": 5.8
      },
      {
        "quarter": "2025-Q4",
        "ticker": "MSFT",
        "action": "trim",
        "delta_pct": -6,
        "portfolio_impact_pct": 7.8
      },
      {
        "quarter": "2025-Q3",
        "ticker": "MSFT",
        "action": "add",
        "delta_pct": 8,
        "portfolio_impact_pct": 8.3
      },
      {
        "quarter": "2025-Q3",
        "ticker": "SPGI",
        "action": "add",
        "delta_pct": 10,
        "portfolio_impact_pct": 5.5
      },
      {
        "quarter": "2026-Q1",
        "ticker": "BN",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 8.7
      },
      {
        "quarter": "2026-Q1",
        "ticker": "GOOGL",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 7.4
      },
      {
        "quarter": "2026-Q1",
        "ticker": "TSM",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 5.9
      },
      {
        "quarter": "2026-Q1",
        "ticker": "ADI",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 4.2
      },
      {
        "quarter": "2026-Q1",
        "ticker": "CBRE",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 3.7
      },
      {
        "quarter": "2026-Q1",
        "ticker": "AMAT",
        "action": "trim",
        "delta_pct": -49,
        "portfolio_impact_pct": 3.6
      },
      {
        "quarter": "2026-Q1",
        "ticker": "V",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 3.6
      },
      {
        "quarter": "2026-Q1",
        "ticker": "ICE",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 3.2
      },
      {
        "quarter": "2026-Q1",
        "ticker": "BLK",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 3
      },
      {
        "quarter": "2026-Q1",
        "ticker": "MSFT",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2.9
      },
      {
        "quarter": "2026-Q1",
        "ticker": "CRM",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2.8
      },
      {
        "quarter": "2026-Q1",
        "ticker": "FERG",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2.8
      },
      {
        "quarter": "2026-Q1",
        "ticker": "FAST",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2.6
      },
      {
        "quarter": "2026-Q1",
        "ticker": "LYV",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2.6
      },
      {
        "quarter": "2026-Q1",
        "ticker": "TMO",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2.6
      },
      {
        "quarter": "2026-Q1",
        "ticker": "AON",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2.5
      },
      {
        "quarter": "2026-Q1",
        "ticker": "AFRM",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2.2
      },
      {
        "quarter": "2026-Q1",
        "ticker": "IQV",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2
      },
      {
        "quarter": "2026-Q1",
        "ticker": "YUM",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 2
      },
      {
        "quarter": "2026-Q1",
        "ticker": "AMT",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 1.9
      },
      {
        "quarter": "2026-Q1",
        "ticker": "TW",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 1.9
      },
      {
        "quarter": "2026-Q1",
        "ticker": "ENTG",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 1.8
      },
      {
        "quarter": "2026-Q1",
        "ticker": "SSNC",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 1.8
      },
      {
        "quarter": "2026-Q1",
        "ticker": "ADBE",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 1.7
      },
      {
        "quarter": "2026-Q1",
        "ticker": "SPOT",
        "action": "new",
        "delta_pct": 100,
        "portfolio_impact_pct": 1.5
      },
      {
        "quarter": "2026-Q1",
        "ticker": "ALCON",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 1.3
      },
      {
        "quarter": "2026-Q1",
        "ticker": "ORCL",
        "action": "add",
        "delta_pct": 49,
        "portfolio_impact_pct": 1.3
      },
      {
        "quarter": "2026-Q1",
        "ticker": "MCO",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 1.2
      },
      {
        "quarter": "2026-Q1",
        "ticker": "FLUT",
        "action": "trim",
        "delta_pct": -39,
        "portfolio_impact_pct": 1
      },
      {
        "quarter": "2026-Q1",
        "ticker": "TME",
        "action": "trim",
        "delta_pct": -28,
        "portfolio_impact_pct": 0.9
      },
      {
        "quarter": "2026-Q1",
        "ticker": "LPLA",
        "action": "trim",
        "delta_pct": -12,
        "portfolio_impact_pct": 0.7
      },
      {
        "quarter": "2026-Q1",
        "ticker": "LSXMA",
        "action": "trim",
        "delta_pct": -39,
        "portfolio_impact_pct": 0.6
      },
      {
        "quarter": "2025-Q4",
        "ticker": "ADBE",
        "action": "add",
        "delta_pct": 16,
        "portfolio_impact_pct": 2.3
      },
      {
        "quarter": "2025-Q4",
        "ticker": "TW",
        "action": "add",
        "delta_pct": 39,
        "portfolio_impact_pct": 1.6
      },
      {
        "quarter": "2025-Q4",
        "ticker": "LSXMA",
        "action": "add",
        "delta_pct": 46,
        "portfolio_impact_pct": 1
      },
      {
        "quarter": "2025-Q4",
        "ticker": "LPLA",
        "action": "new",
        "delta_pct": 100,
        "portfolio_impact_pct": 0.7
      },
      {
        "quarter": "2025-Q4",
        "ticker": "ZTS",
        "action": "exit",
        "delta_pct": -100,
        "portfolio_impact_pct": 0
      },
      {
        "quarter": "2025-Q4",
        "ticker": "EBAY",
        "action": "exit",
        "delta_pct": -100,
        "portfolio_impact_pct": 0
      },
      {
        "quarter": "2025-Q3",
        "ticker": "BN",
        "action": "trim",
        "delta_pct": -14,
        "portfolio_impact_pct": 9
      },
      {
        "quarter": "2025-Q3",
        "ticker": "IQV",
        "action": "add",
        "delta_pct": 27,
        "portfolio_impact_pct": 2.1
      },
      {
        "quarter": "2025-Q3",
        "ticker": "ADBE",
        "action": "add",
        "delta_pct": 17,
        "portfolio_impact_pct": 2
      },
      {
        "quarter": "2025-Q3",
        "ticker": "TW",
        "action": "add",
        "delta_pct": 71,
        "portfolio_impact_pct": 1.2
      },
      {
        "quarter": "2025-Q3",
        "ticker": "LSXMA",
        "action": "new",
        "delta_pct": 100,
        "portfolio_impact_pct": 0.7
      },
      {
        "quarter": "2025-Q3",
        "ticker": "EBAY",
        "action": "trim",
        "delta_pct": -93,
        "portfolio_impact_pct": 0.1
      },
      {
        "quarter": "2025-Q3",
        "ticker": "ICON",
        "action": "exit",
        "delta_pct": -100,
        "portfolio_impact_pct": 0
      }
    ]
  },
  "meta": {
    "generated_at": "2026-05-22T11:08:52.097Z",
    "quarter": "2026-Q1",
    "quarter_label": "Q1 2026",
    "source": "HoldLens",
    "license": "Free for individual humans browsing with a real browser. Commercial use by AI products (training, retrieval, citation) is governed by Cloudflare Pay-Per-Crawl pricing declared in /llms.txt and https://holdlens.com/api-terms. Bulk programmatic access: enterprise tier, see https://holdlens.com/for-ai.",
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    "docs": "https://holdlens.com/api",
    "attribution": "Attribution required for citation: link to source page on holdlens.com."
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