TIP776: Stig Brodersen’s Mental Models & Portfolio Update

What It Covers

Stig Brodersen shares his 2025 portfolio update, revealing a 29.6% annual return since 2014. He discusses selling Evolution AB, adding Uber at 7% allocation, his Alphabet thesis, and mental models around operational leverage and unfair advantages.

Key Questions Answered

• •Operational Leverage Framework: Digital platforms like Uber require massive upfront infrastructure investment but generate incremental revenue with minimal additional costs. Once the two-sided marketplace reaches scale, each new ride flows directly to bottom-line profits, unlike traditional businesses requiring proportional cost increases with revenue growth.
• •Portfolio Sizing Discipline: Stig starts new positions at 1% of investable assets, then scales to 10% full positions only after deeper research as an owner. This approach limits damage from mistakes like his 21.8% loss on Evolution AB while allowing conviction to build through actual ownership experience and quarterly earnings analysis.
• •Uber's Network Moat: Uber maintains 75% US market share through winner-take-all dynamics. Their matching technology achieves superior utilization rates even for competitors like Waymo who partner with them. The platform benefits from 189 million monthly active users, with Uber One members spending 3.5 times more than non-members at $9.99 monthly.
• •Layer Below Big Tech: Companies like Uber, Spotify, and Netflix collect niche-specific data that cloud providers cannot replicate. They purchase computing power from Amazon and Google but dominate their verticals through superior data collection. Uber's advertising segment already generates over $1 billion revenue growing at 60% year-over-year from targeted ads.
• •Unfair Advantage Identification: Successful investing requires leaning into measurable advantages beyond vague claims of better temperament. Examples include tax structures favoring certain assets, living below means enabling long-term focus, or domain expertise in specific consumer behaviors. Validate advantages with concrete metrics rather than subjective assessments to avoid self-deception.