🎯 In 30 seconds: Four times a year, public companies report their results, and the few weeks when most of them do it are called earnings season. The headline numbers are revenue, earnings per share (EPS) and guidance for the future. Stocks move on the gap between those numbers and what analysts expected, not on whether the numbers are good. That is why a company can beat estimates and still fall 8% the next morning. Reports usually come out before the open or after the close, so the price often gaps, jumping straight past stop orders. Know the date, decide your plan beforehand, and size for the gap.
What earnings season is
US public companies must file reports with the SEC: an annual report on Form 10-K and a quarterly report on Form 10-Q for each of the first three quarters of their fiscal year. Most companies also announce their results in a press release and hold a conference call.
Because most companies use a calendar year, reports bunch together in the weeks after each quarter ends. Those weeks are earnings season. Large banks often report early, and the busiest weeks bring hundreds of reports.
A change to watch: in May 2026, the SEC proposed letting companies choose to file semiannual reports on a new Form 10-S instead of quarterly 10-Qs. As far as this course could confirm, it had not been adopted as of October 2026, so quarterly reporting is still the rule. If it is adopted, some companies may report less often.
How results are released
The usual sequence:
- Date announced. Weeks ahead, the company says when it will report. The site's earnings calendar collects these dates.
- Press release. Usually just before the market opens or just after it closes, so the news hits when trading is thin rather than in the middle of the session.
- Form 8-K. The release is also furnished to the SEC on Form 8-K, the "current report" companies use for major events. Investor.gov notes companies generally have four business days to file an 8-K after a triggering event.
- Conference call. Executives discuss the quarter and answer analysts' questions, often about an hour after the release. Calls are usually webcast on the company's investor relations site.
- 10-Q or 10-K. The full filing with complete financial statements, sometimes days or weeks later.
Why everyone gets the news at once: SEC Regulation FD (Fair Disclosure), in effect since October 2000, says that when a company shares material nonpublic information with market professionals or investors who may trade on it, it must make that information public at the same time (or promptly, if the disclosure was unintentional). Companies can no longer quietly tip favored analysts first.
The numbers that matter
Revenue (or sales): total money brought in from customers in the quarter. It is the "top line".
Earnings per share (EPS): net profit divided by shares outstanding. It is the "bottom line" per share. Companies often report two versions:
- GAAP EPS: calculated under US Generally Accepted Accounting Principles, the official accounting rules.
- Adjusted (non-GAAP) EPS: the company's own version that excludes items it considers unusual, such as restructuring costs or stock-based pay. Releases normally include a reconciliation table showing how the company gets from GAAP to adjusted.
Analysts usually compare adjusted EPS with adjusted estimates. Adjusted numbers can be informative, but they are chosen by management, so look at what was excluded and whether the same "one-off" items appear every quarter.
Margins: profit as a percentage of revenue. Gross margin, operating margin and net margin show whether the business is getting more or less profitable per dollar of sales. See Measuring business quality.
Guidance: the company's own forecast for next quarter or the full year, often as a range. Not every company gives guidance. When it does, guidance frequently moves the stock more than the quarter just finished, because the market prices the future.
Consensus estimates, beats and misses
Analysts at banks and research firms publish forecasts for each company. The consensus estimate is the average (or median) of those forecasts, compiled by data providers. Different providers include different analysts, so their consensus numbers can differ slightly.
A beat is a result above consensus; a miss is below. The surprise is usually expressed as a percentage:
Surprise % = (actual minus estimate) / estimate x 100
Many companies guide conservatively so they can beat. When beats are routine, a small beat is no news at all. The market cares about how big the surprise was compared with what investors had been hoping for, which is not always the published consensus.
Why a beat can still fall
Price reflects expectations. Before a report, the stock price already includes what investors expect. After the report, it moves on the difference between what happened and what was expected. Common reasons a "good" report sinks a stock:
- The run-up. If the stock climbed 5% into the report, investors were already expecting a strong beat. A small one disappoints. This is the "buy the rumor, sell the news" pattern from Why stock prices move.
- Guidance. A beat on the past quarter with weak guidance for the next one often leads to a drop.
- Quality of the beat. EPS beat because of a lower tax rate, a one-time gain or a smaller share count from buybacks, while revenue or margins disappointed.
- Details in the call. A comment about slowing orders or rising costs can reverse the after-hours move.
Earnings gaps and what they do to your stops
A gap is a jump between one period's trading range and the next, with no trades in between. Earnings are the most common cause of big single-stock gaps, because the news arrives when the regular market is closed.
Gaps break the main assumption behind a stop-loss order. Worked example with hypothetical numbers:
| You buy 100 shares a few days before earnings | $97.00 |
| Stop-market order at | $95.00 |
| Planned maximum loss: 100 x $2.00 | $200 |
| Stock opens the morning after earnings at | $92.00 |
| Stop triggers and fills near the open, about | $92.00 |
| Actual loss: 100 x $5.00 | $500, 2.5 times the plan |
A stop-limit order at $95 would not have filled at all, leaving you holding a falling stock. Neither order protects you from a gap. Order types in depth and Stop losses explain the trade-offs. Options traders face a related effect: option prices usually include extra expected movement before earnings that disappears after the report, covered in Implied volatility.
Reading an earnings press release, step by step
- Find the headline numbers: revenue, EPS (GAAP and adjusted), and compare each with the same quarter last year. Year-over-year comparisons avoid seasonal effects.
- Compare with consensus. Calculate the surprise on revenue and EPS.
- Check guidance against what analysts expected, using the midpoint of any range.
- Read the GAAP-to-adjusted reconciliation. What was excluded, and is it really unusual?
- Look at margins. Is the company keeping more or less of each dollar of sales?
- Look at cash flow and the share count. Profit is an accounting number; cash from operations is harder to dress up. A shrinking share count can flatter EPS (see Dividends, splits and buybacks).
- Read or listen to the call. Note any change in tone, new risks, or questions management avoided.
For the deeper accounting, see The three financial statements.
Try it
Open the earnings calendar and choose one company reporting this week. Before the report, note the consensus EPS and revenue and the stock's move over the previous two weeks. After the report, work through the seven steps above, calculate each surprise percentage, and record the next day's opening gap and closing change. Do this for five companies and you will see for yourself how often a beat falls and a miss rises. If you want to practice holding through a report, do it in the paper portfolio first.
- How do you work out an earnings surprise as a percentage? Try an estimate of $1.00 and an actual of $1.10. Answer: Surprise % = (actual minus estimate) / estimate x 100. Here that is ($1.10 - $1.00) / $1.00 x 100 = 10%.
- What does SEC Regulation FD require? Answer: When a company shares material nonpublic information with market professionals or investors who may trade on it, it must make the information public at the same time (or promptly, if the disclosure was unintentional).
- A company beats this quarter’s EPS estimate but gives weak guidance. Why might the stock still fall? Answer: Guidance often moves the stock more than the quarter just finished, because the market prices the future.
- You buy 100 shares at $97 with a stop at $95. After earnings the stock opens at $92. About what is your loss? Answer: About $500 (100 x $5), 2.5 times the $200 you planned. A stop does not protect you from a gap.