William Von Mueffling - Cantillon Capital Management Portfolio Performance Analysis (Q1 2026)
Investment performance metrics based on historical 13F filings data.
Data Coverage: June 2013 to March 2026 • Initial Portfolio Value: $0.00B
Performance calculated from first filing in our database. This may not represent the investor's entire career.
Portfolio Growth (Since First Filing)
+15.05B
+9,999%+
Winning Positions
+78.67%
59 wins / 75 positions
Average Gain (Winners)
$277.02M
+9,999%+ avg per position
Active Positions
38
12 losing positions
Portfolio Value Over Time
Total Positions Tracked
75
All holdings over time
Win/Loss Ratio
4.92
59 gains / 12 losses
Active vs. Exited
38 / 37
Current positions / Exited
Position Performance
Performance calculated from first appearance in 13F filings. Initial values represent position value when first tracked, not actual purchase prices.
| Symbol | Company | Sector | Entry | Status | Initial Value | Current Value | Gain/Loss | Return % |
|---|---|---|---|---|---|---|---|---|
| AVGO | Broadcom Inc. | Technology | Jun 2018 | ACTIVE | $338.01K | $1.26B | $1.26B | +9,999%+ |
| GOOGL | Alphabet Inc. | Communication Services | Dec 2015 | ACTIVE | $392.81K | $1.07B | $1.07B | +9,999%+ |
| TSM | Taiwan Semiconductor Manufactur | Technology | Sep 2017 | ACTIVE | $106.33K | $842.70M | $842.59M | +9,999%+ |
| IBKR | Interactive Brokers Group, Inc. | Financial Services | Jun 2017 | ACTIVE | $72.07K | $754.26M | $754.19M | +9,999%+ |
| SPGI | S&P Global Inc. | Financial Services | Jun 2016 | ACTIVE | $416.62K | $658.13M | $657.71M | +9,999%+ |
| ADI | Analog Devices, Inc. | Technology | Jun 2013 | ACTIVE | $302.67K | $608.12M | $607.82M | +9,999%+ |
| CBRE | CBRE Group Inc | Real Estate | Mar 2016 | ACTIVE | $109.66K | $532.63M | $532.52M | +9,999%+ |
| AMAT | Applied Materials, Inc. | Technology | Mar 2020 | ACTIVE | $111.77K | $520.15M | $520.04M | +9,999%+ |
| V | Visa Inc. | Financial Services | Dec 2015 | ACTIVE | $104.59K | $519.30M | $519.19M | +9,999%+ |
| ICE | Intercontinental Exchange Inc. | Financial Services | Dec 2014 | ACTIVE | $124.60K | $462.71M | $462.59M | +9,999%+ |
Important Note: Data Limitations
These metrics are based on 13F filing data which has significant limitations:
- Quarterly Snapshots Only: 13F filings show positions at quarter-end, not actual transaction prices
- No Transaction Prices: We cannot determine actual buy/sell prices, only end-of-quarter values
- Performance Estimates: Gains/losses are calculated from first appearance to last update using quarterly values
- Missing Data: Intra-quarter trades, dividends, corporate actions, and exact timing are not captured
- Educational Only: These metrics are estimates for understanding general investment patterns, not actual realized returns
Use these metrics for informational and educational purposes only. They represent broad trends, not precise investment performance.