12 March 2026
Reading the gap: what an opening print often fails to say
A large opening gap after earnings is a fact. Whether it continues is a different question — here is how we separate the two.
The open after a results release attracts the most commentary and the least patience. A stock gaps four percent, someone declares a new regime, and the afternoon is spent defending a story written at 07:05.
We treat the opening gap as one observation among several. Volume relative to the name’s own history matters more than the percentage alone. Peer moves in the first hour tell you whether the tape is about that company or about the sector. The path over the next two sessions often matters more than the first print on the screen.
A simple discipline
Before the open, write down the historical gap range for the last eight reporting events. After the open, mark whether today’s gap sits inside or outside that range. Only then decide whether the day deserves a full debrief or a short confirmation note.
This does not predict the close. It stops the desk from inventing a thesis solely because the first tick looked dramatic.