Definition
Risk tolerance is how much uncertainty and possible loss you can comfortably absorb when chasing a goal or return. It has two components: capacity, the loss you can financially survive, and willingness, the loss you can psychologically endure without panicking.
A useful plan respects both. High capacity with low willingness leads to selling at the worst moment; high willingness with low capacity leads to ruin. Sound decisions sit where the two overlap.
Why it matters
How it works
Risk tolerance acts as a governor on strategy. An investor with high tolerance and a long horizon can hold volatile, high-growth assets; one nearing a major expense should hold steadier ones. The aim is not to maximize or minimize risk but to take the amount that matches your goals and temperament.
The discipline is to decide your tolerance calmly, in advance, and then size positions accordingly — so that a downturn is uncomfortable but never catastrophic, and never forces a panic exit.