Four times a year every public company reports results, and for a week the market overreacts to almost all of them. Earnings season is where theses are confirmed or broken, but only if you know which numbers you were waiting for.
A quarterly report includes results against analyst estimates, management's guidance for the coming quarter or year, and commentary on the earnings call. The stock's reaction depends on all three compared with expectations, not on whether results were good in absolute terms.
What to look at
- Beat or miss: actual revenue and EPS against consensus estimates. Small beats are routine; companies guide conservatively.
- Guidance: the company's own forecast. A beat with lowered guidance often sends a stock down.
- Margins and cash flow: check whether the beat came from the core business or from one-offs and tax.
- The call: listen for changes in tone, new risks, and answers that avoid the question.
- Your thesis metric: the one number you wrote down in advance. Did it move the way you expected?
The shape of it
Reaction ≈ (Results − Expectations) + (New guidance − Old expectations)
An example
A company beats EPS by 5% but cuts full-year revenue guidance, citing slower orders. The stock falls 12%. The quarter was fine; the future just became less certain, and the price reflects the future.
Where people go wrong
Do not judge a quarter by the after-hours move. Early reactions are often reversed once investors read the full report and listen to the call.
Write down before the report what you expect and what would worry you. Afterwards, compare the report with your notes, not with the price. That habit turns earnings season from noise into evidence.