When to Buy, When to Hold, When to Sell — The Complete Decision Framework

Finding a great business is the beginning of the process, not the end. The decisions that determine whether you earn 50% or 500% from a great company are when you buy, whether you hold through adversity, and under what conditions you sell. Most investors get the first decision approximately right and the next two badly wrong.

Why This Matters

Peter Lynch managed the Magellan Fund from 1977 to 1990, delivering 29% annualised returns — the best 13-year track record of any major fund in history. What distinguished Lynch was not just stock selection but holding discipline. He famously observed that investors who sold their winners too early — a behaviour he called "pulling the flowers and watering the weeds" — were the most reliable destroyers of their own long-run returns. The decision to hold is not passive. It is an active decision, made repeatedly, to maintain conviction in the face of market volatility, media noise, and the siren call of "taking profits." This lesson provides the framework for making all three decisions — buy, hold, sell — with clarity and consistency.