How to build a portfolio
Why allocation matters more than selection. Sizing, diversification, and the architecture questions to settle before buying a single asset.
A growing library of plain-English explainers. Written the way we think about these ideas internally — structured, practical, free of jargon, and intentionally boring where that serves the reader. No fees, no sales pitch. Just frameworks.
Why allocation matters more than selection. Sizing, diversification, and the architecture questions to settle before buying a single asset.
The simple mental models that matter: asymmetric payoffs, drawdowns, leverage, and why your risk budget is smaller than you think.
Cycles are not predictions. A framework for locating where prices, earnings and sentiment sit relative to history — and what that implies.
Trade-offs between income and growth, liquidity and return, concentration and diversification — with worked examples on a blank sheet.
Why investors tend to earn less than the funds they own. The mechanics of panic, anchoring, and loss aversion — and how to design around them.
When rebalancing helps, when it hurts, and how to think about tax friction, bands vs. calendars, and the humility of not forecasting.
Base rates, expected value, Kelly, and what it really means when you hear "risk-adjusted return." A primer for intuitive probabilistic thinking.
The five lines that matter most, how debt hides, and what a healthy balance sheet looks like across sectors — from banks to utilities.
DCF, multiples, and why every valuation is a story about the future. A short guide to ranges, margins of safety, and the limits of precision.
Volatility is not the same thing as risk. A plain explanation, why standard deviation is a weak proxy, and what to watch instead.
The math is trivial; the temperament is rare. Why time in the market beats timing, and what compounding looks like on a real timeline.
When concentration helps, when it hurts, and how great investors have historically sized their highest-conviction positions.
New explainers are added as we write them. If there's a specific concept you'd like us to cover — drop us a note and we'll add it to the queue.