Concentration Risk
Concentration Risk — Risk from oversized single-name or sector bets.
Definition
Concentration Risk refers to risk from oversized single-name or sector bets. Keep that definition fixed when comparing series, managers, or regimes — renaming the same tape does not create a new signal.
Why it matters
It is an operating object: if the definition drifts, routing, risk limits, and audit trails drift with it. When risk from oversized single-name or sector bets shifts, related hedges, limits, and narratives usually need an explicit update rather than a quiet assumption.
Case
Suppose a desk is positioned for the opposite of what concentration risk is saying. If risk from oversized single-name or sector bets moves against that book, the first question is not “is the story clever?” but whether size, hedges, and stop logic still match the observation.
How to read it
Verify ownership, inputs, and failure alerts the same way you would for a production control. Prefer a short written null hypothesis for Concentration Risk: what would falsify the current reading in the next window?