
Markets
What actually happens to a stock when its index adds it?
Inclusion effects are measurable around the announcement and the effective date — and the two windows tell different stories.
Markets coverage from UZU NEWS.

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.

Change the window from 60 days to 250 and the same two assets can tell opposite stories — here is how to test it.

Contango and backwardation describe the term structure of volatility prices — a measurable shape, not a market call.

The thresholds are precise — 7, 13 and 20 percent on the S&P 500 against the prior close — and so are their limits.