Lessons › Fundamentals and news › Priced in: why good news can drop a price
World 7 · Fundamentals and news · lesson 10 · level 3
Priced in: why good news can drop a price
If everyone already expects good news, the price has often moved before it arrives.
In one line
If everyone already expects good news, the price has often moved before it arrives.
Explained simply
Imagine everyone at school hears a rumour that the holidays will start early, and the excitement builds for weeks. When it is finally announced, nobody cheers, because they already knew. Markets work the same way: expected news is often already in the price.
The lesson
Markets look ahead, so expected news is often reflected in the price before it is announced. When the news finally arrives, traders who bought early may take profits, and the price can fall even though the news is good. The reverse also happens, when bad but expected news is followed by a rise. What moves a price on the day is the part of the news that was not expected.
A worked example
Illustrative example: a stock trades at 100 a month before a widely expected product launch, and buyers push it to 125 by the day before, a rise of 25% (25 divided by 100 times 100). The launch goes as planned, but early buyers take profits and the price drops to 115, a fall of 8% from 125 (10 divided by 125 times 100). The news was good, but it was already in the price.
The same idea at four levels
- Beginner. Prices move on what people expect, not only on what has happened.
- Foundation. Expected good news is often already in the price before it is announced.
- Intermediate. When the news lands, early buyers may take profits, so the price can fall on good news.
- Advanced. Expected bad news can be followed by a rise, because the worry was already in the price.
- Expert. Experts ask what the market already expects before trading news, and treat a big run-up into an event as a sign that much of the good news may be priced in.
Mistakes to avoid
- Buying because news is good without asking whether it was already expected.
- Thinking the market is wrong when it reacts differently from the headline.
- Chasing a big run-up just before a widely expected event.
Check yourself
What does 'priced in' mean?
Expected news is already reflected in the price. Markets look ahead.
Can a price fall on good news?
Yes, if the good news was already expected. Early buyers may take profits.
Why do markets move before news arrives?
Traders act on what they expect. Expectations drive trades.
What moves a price most on the day of the news?
The part that was not expected. Surprise is what changes minds.
A stock rose from 100 to 125 into an event. By what percentage did it rise?
25%. 25 divided by 100 is 25%.
Goal of this lesson: Explain how expectations get priced in before news arrives, and why prices can fall on good news.