Stephen Mandel · William von Mueffling
what they both own
Both Stephen Mandel (Lone Pine Capital) and William von Mueffling (Cantillon Capital Management) hold 7 of the same stocks per their latest 13F filings — a Jaccard overlap of 13.5% across portfolios of 24 and 35 positions. Combined position weight in shared names: 45.6% of each investor's portfolio capacity.
Shared positions, ranked by joint conviction
Joint conviction = Stephen Mandel's portfolio weight + William von Mueffling's portfolio weight. A stock that both investors size heavily ranks higher than one both hold marginally. Position weight reflects each investor's most recent 13F filing (45-day SEC lag applies; filings can be 1-3 months old).
| Ticker | Mandel | Mueffling | Joint | ConvictionScore |
|---|---|---|---|---|
| BN | 3.6% | 8.7% | 12.3% | 0 |
| TSM | 3.7% | 5.9% | 9.6% | 0 |
| GOOGL | 0.4% | 7.4% | 7.8% | 0 |
| LPLA | 4.9% | 0.7% | 5.6% | 0 |
| ENTG | 2.9% | 1.8% | 4.7% | 0 |
| V | 0.2% | 3.6% | 3.8% | 0 |
| SPOT | 0.3% | 1.5% | 1.8% | 0 |
Compare individually
Data note. Position percentages are derived from each investor's most recent SEC Form 13F filing (45-day lag), filtered to disclosed long positions only. 13F filings exclude short positions, options (mostly), foreign-domiciled holdings, and positions below the reporting threshold. Joint conviction is a descriptive sum, not a recommendation. Per HoldLens compliance: this page is factual portfolio comparison, not investment advice. Always verify against the source filing before acting.