What happens to a stock when a company lowers guidance?

It often falls, because analysts cut their own forecasts to match and the valuation resets lower. How far depends on how big the cut is, whether traders already suspected it, and what else the report said. A cut that the market saw coming can have a surprisingly small effect.

Is earnings guidance a promise?

It is management's estimate, and the company can revise it at any time. Releases that include an outlook carry cautionary language about forward-looking statements, listing the risks that could make results differ. Treat guidance as the company's best current view of the period ahead.

What is the difference between guidance and consensus?

Guidance comes from the company itself. The consensus is the average of forecasts published by outside analysts, who often build their numbers around that guidance. The stock reacts to the gap between the two, so compare the midpoint of the guided range with the consensus for the same period.

Earnings Guidance: Reading a Company's Own Forecast

A range that looks healthy can still be a disappointment. Guidance gets judged against what analysts already expect, and what counts is where the midpoint of the range sits relative to that consensus, whatever the range says about growth over last year.

Midpoint against consensus

Most guidance comes as a low end and a high end. Take the midpoint. Then compare it with the consensus estimate for the same period and the same basis, which is usually adjusted EPS.

Even the top of the range, $5.00, sits under the $5.05 consensus. The company expects to earn less than analysts had modeled, so estimates will probably come down after the call, and a reader who only sees “$4.80 to $5.00, up from last year” in a headline might call it good news while the stock trades lower on the 3% gap.

The direction of change

Guidance is usually restated each quarter, so the change from the last one carries its own message.

Raised: the company now expects more than it did three months ago. A raise that still lands under consensus can disappoint anyway.
Maintained: nothing new. That can be fine, or it can mean the company didn’t pass along a strong quarter.
Lowered: management has cut its own number.
Withdrawn: the company stops giving a forecast at all, which usually signals that management can’t see far enough ahead to put a number on it, and the market tends to take that badly because a missing figure leaves every analyst guessing at once.

Some companies narrow a range without moving the midpoint. A full-year range of $4.80 to $5.00 tightened to $4.85 to $4.95 still points at $4.90, just with more confidence.

Some companies give none

Plenty of companies don’t issue earnings guidance at all. Others guide on revenue or margins and leave EPS to analysts. Without guidance, the consensus estimate carries more weight and the individual forecasts behind it tend to spread wider, because analysts have less to anchor on; where earnings estimates come from explains the anchoring.

Where to find it

Three places. The earnings release usually has an outlook section near the top or bottom. A copy goes to the SEC as well, attached to a Form 8-K filed under Item 2.02, so you can pull it from the SEC’s filing system. And the conference call, where management may add color, change the emphasis, or give figures that weren’t in the release.

How it looks on the page

In a release, the outlook is often a short table: the period, the metric, the low and high ends, sometimes the prior range in a column beside it so you can see what moved. Revenue might be given in millions, EPS in dollars and cents, margins as a percentage. Some earnings calendars and quote pages add a guidance line next to the consensus figure after the report, but many don’t, so the release is the place to read it. Watch the footnotes. They say whether the EPS range is adjusted or GAAP, and they often list what the company assumed about share count, tax rate or currency, any of which can explain why a range moved when the business itself didn’t change much.

What people get wrong

Comparing the low end, or the high end, with consensus. Use the midpoint.
Reading “above last year” as a beat. The bar is the estimate.
Ignoring the quarter guide. A strong full-year range with a weak next quarter still hits the stock.
Missing a change in basis, for example a company switching from GAAP to adjusted guidance.

Why guidance can outweigh the quarter

Traders price the future, and the quarter just reported is the past. A company that beats the quarter and guides below consensus for the next one has told you its best stretch may be behind it, which is the most common answer to why a stock falls after beating earnings. The size of the beat itself is measured by the earnings surprise. For timing, the BMO and AMC labels on a calendar tell you when the release and outlook arrive.

Consensus estimate: the average of analyst forecasts, which guidance is judged against. Pre-announcement: guidance updated between scheduled reports, often a warning. Earnings surprise: the reported result against the estimate.