Amihud Illiquidity
Amihud Illiquidity — Average absolute return per unit volume as an illiquidity proxy.
Definition
Amihud Illiquidity refers to average absolute return per unit volume as an illiquidity proxy. Keep that definition fixed when comparing series, managers, or regimes — renaming the same tape does not create a new signal.
Why it matters
Funding and market liquidity decide whether a position can be entered, held, or exited at size. When average absolute return per unit volume as an illiquidity proxy 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 amihud illiquidity is saying. If average absolute return per unit volume as an illiquidity proxy 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
Watch spreads, depth, and dealer balance-sheet proxies; headline prices can look fine while exit is gone. Prefer a short written null hypothesis for Amihud Illiquidity: what would falsify the current reading in the next window?
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