
Markets
Anatomy of a bid-ask spread: where the pennies go
A spread decomposes into processing cost, inventory risk and adverse selection — and each component behaves differently when markets speed up.
Markets coverage from UZU NEWS.

A spread decomposes into processing cost, inventory risk and adverse selection — and each component behaves differently when markets speed up.

Volume counts transactions, not conviction — and the modern tape's count includes flows that carry no opinion at all.

Extended sessions run on thinner books, and the measurable cost shows up in spreads, depth and fill quality — not in headline prices.

Inclusion effects are measurable around the announcement and the effective date — and the two windows tell different stories.

GEX estimates aggregate into one number rest on three assumptions each worth checking before the number is quoted.