What Is Earnings Season and Why Do Stocks Swing?
Four times a year, thousands of public companies report their quarterly results in a concentrated few weeks known as earnings season. It produces some of the largest single-day stock moves of the year.
| Quarter reported | Season begins | Reports first |
|---|---|---|
| Q4 (prior year) | Mid-January | The big banks |
| Q1 | Mid-April | The big banks |
| Q2 | Mid-July | The big banks |
| Q3 | Mid-October | The big banks |
When earnings season happens
Earnings season kicks off a couple of weeks after each quarter ends, typically mid-January, April, July, and October, and runs for about six weeks. The big banks traditionally report first, followed by a wave of companies across every sector.
Why single stocks move so much
A quarterly report delivers a burst of new information: revenue, profit, margins, and forward guidance all at once. When results differ from expectations, the stock reprices immediately, which is why double-digit moves on earnings day are common.
Guidance often matters more than results
Markets are forward-looking, so a company's outlook for the next quarter frequently drives the reaction more than the results it just reported. A strong quarter paired with weak guidance can still send a stock lower.
How earnings season moves the whole market
When heavyweight companies report, the largest tech names in particular, their results and guidance can move entire indexes and set the tone for their sector. A few key reports can shift the mood of the whole market.
Frequently asked questions
How often do companies report earnings?
Most US public companies report earnings once per quarter, or four times a year. The concentrated periods when most of them report are called earnings season.
Why did a stock drop after good earnings?
Often because guidance was weak, expectations were already priced in, or the beat was not large enough versus a high bar. The forward outlook usually matters more than the reported quarter.
When does earnings season start?
It begins about two weeks after each quarter ends, roughly mid-January, mid-April, mid-July, and mid-October, and the major banks typically report first.
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