IPO Listing Scoreboard
What the grey market implied, against what actually happened on listing day.
Most sites publish GMP and never revisit it. This page keeps the record — including every time the grey market was wrong. It is a factual comparison of two public numbers, not a rating of anyone's forecast.
Error is implied minus actual, in percentage points. "Direction right" asks only whether the grey market got the sign correct — being out by 5pp on a premium is a different kind of wrong from calling a discount a premium.