Diversification
Diversification is holding assets whose returns do not move together, so that a poor outcome in one is not a poor outcome in all — it reduces the impact of being wrong about any single holding, and does not reduce the risk of being wrong about the market as a whole.
The working principle is correlation, not count. Twenty holdings that all rise and fall together are one position wearing twenty names. Diversification does something only to the extent that the things held behave differently from each other.
What it cannot do
Diversification reduces specific risk — the risk attached to one company, one sector, one country. It does not remove market risk, and correlations between assets have a documented tendency to converge during severe declines, which is precisely when the protection was wanted. A portfolio can be genuinely well diversified and still fall substantially.
Being diversified is not the same as being hedged, and it is not the same as being safe. It is a statement about what kind of mistake you are protected from.
Related terms
Maintained by Jared Sinclair, Founder · Syrax Global FZCO · Definitions are educational, not financial advice.
Knowing the vocabulary is the easy part.
Every term here can be learned in an afternoon. Applying them consistently under pressure is the part that decides outcomes — and the part almost nobody measures. That is what the series is about.