Core vs Exploratory Positions
A two-tier portfolio structure that maps conviction at different stages of development, from small exploratory stakes to high-conviction core holdings.
A well-structured portfolio is not a flat list of holdings. It is a two-tier system that reflects where each position sits on the spectrum of conviction and understanding.
Core positions (3%+)
Core positions represent your highest conviction and deepest understanding. These are companies you have followed through multiple earnings cycles, across different market conditions. The size of a core position reflects the depth of your understanding, not just the price return since you bought it.
Core positions demand genuine tolerance for volatility. A 3%+ position in an individual stock will move your portfolio meaningfully on bad days. If that movement causes you to question the holding, the position is too large for your current level of conviction.
Below core
Positions below core threshold serve three distinct functions, and it matters which one applies:
- Genuinely exploratory — Small stakes in interesting companies where you don't yet have strong conviction. You're learning the business, reading earnings calls, and watching how management executes.
- Building toward core — Conviction is growing, the thesis is holding up, and you're gradually adding. These positions are on a trajectory toward core if the evidence continues to accumulate.
- Conviction plateaued — Interesting enough to own, but something prevents you from sizing up. Maybe the valuation doesn't quite support a larger position, or there's an unresolved question about the competitive landscape. These positions may stay small indefinitely.
Periodically review your below-core holdings and honestly categorise each one. A position that has sat in category one for over a year without moving toward category two deserves scrutiny. Either the conviction is building or it isn't.
The portfolio as a map
The portfolio is a map of conviction at different stages of development. Great companies should grow large. Unproven ones stay small. ETFs compound quietly in the background, providing broad market exposure while individual positions earn their way to prominence.
This structure acknowledges that conviction is not binary. It develops over time, through evidence, and the portfolio should reflect that reality.
Related
- Position Graduation — The process by which below-core positions earn their way to core status
- Never Trim Winners — Why core positions that grow large should be allowed to remain large
- Dollar Cost Averaging — How systematic buying supports the background ETF layer