Understanding companies
An earnings surprise is the difference between a reported earnings measure and a defined pre-release expectation. Its sign and size depend on the measure, estimate source and cut-off time.
Make it click
A score of eight can delight if six was expected and disappoint if ten was expected. The isolated score sounds identical; the surprise comes from its gap to the prior benchmark.
Now put that into markets
Reported EPS or another measure is compared with a timestamped consensus. Revenue, margins, guidance and qualitative news can create separate surprises at the same event.
Absolute and percentage surprises answer different questions, especially near zero. Adjusted actuals must be comparable with adjusted estimates.
Freeze the consensus before publication and document the release time. Analyse the whole information package before assigning a price move to one surprise metric.
A positive surprise does not guarantee a positive reaction because expectations may be richer than the measured consensus. Post-release revisions cannot be allowed into the baseline.
Takeaway
