It happens often: a company announces record profits, and its stock crashes. At first glance it seems absurd. In fact it follows a precise logic, which becomes clear once you understand how an earnings report — the periodic publication of a company's accounts — works.

What an earnings report contains

Every three months, listed companies publish their results. The main items to watch:

ItemWhat it tells you
Revenue (sales)How much the company sold
Net incomeWhat's left after all costs
EPS (earnings per share)Profit divided by the number of shares: the most-watched figure
MarginsHow much of revenue turns into profit
GuidanceThe company's forecasts for future quarters

The secret: expectations matter, not absolute numbers

Here's the key that explains the paradox. A stock's price already embeds analysts' expectations. What moves the stock is not the result itself, but the difference from what the market expected. Record profits but below expectations? The stock falls. Losses, but smaller than forecast? The stock can rise.

Illustrative chart: how a stock reacts to earnings versus expectations
Illustrative Hub Finanza schematic — the reaction depends on the gap between results and expectations.

Why guidance weighs more than the past

There's another often-decisive element: guidance, the forecasts a company gives for the future. Markets look ahead: an excellent quarter paired with cut guidance can sink a stock, because it signals the best may be behind. That's why a company can report "great numbers" and still see its price fall.

How to read it without being fooled

Three practical tips: first, always compare results with expectations, not just year-on-year. Second, look at the guidance and the management's tone, not only the closed quarter's numbers. Third, remember a single day's reaction is often emotional: a company's substance is judged over several quarters, not one session.

The bottom line

An earnings report isn't read by checking whether the numbers are "nice", but whether they are better or worse than what the market already priced in — and what the future promises. Understanding the role of expectations and guidance is the key to no longer being surprised when a stock with record profits loses ground.

Disclaimer: this article is for information purposes only and does not constitute financial advice. Any investment decision should be assessed against your own circumstances and, if needed, with a qualified professional.