Earnings surprise.
In plain English
An earnings surprise is the difference between the profit a company actually reports and the consensus estimate analysts published before the report. Beat the estimate and it is a positive surprise; miss it and it is negative. The size is usually quoted per share and as a percentage of the estimate. Prices move because the estimate, not last year's result, is what buyers and sellers had already priced in. A surprise also resets expectations for the next quarter, which is why guidance often matters as much as the number itself.
01Why it matters
If you own a stock, a report that looks great on paper can still drop the price, because the market was already paying for that result. The surprise, not the raw profit, is the news.
02The math, step by step
Analysts expect $1.20 per share. The company reports $1.32. The surprise is $0.12, which is $0.12 divided by $1.20, or 10 percent. If it reports $1.08 instead, that is a 10 percent negative surprise.
Illustrative example. The amounts here are hypothetical, chosen to show how the math works, not real quoted rates or figures.
03What this is NOT
It is not a measure of whether a company is profitable. A company can earn record profit and still post a negative surprise if analysts expected more. The comparison is against the estimate, not against zero and not against last quarter.
04Receipts
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Plain-English answers from our glossary. Receipts included. Never advice.
Educational tool. Answers come only from ClearMoneySchool's published glossary and are not advice. Why we never give advice