Why prices move

Prices don’t move by magic, and they don’t move because an expert says so. They move for one simple reason: people disagree about what something is worth, and they act on it. Understand that, and charts start making sense.

In one sentence

More buyers than sellers pushes the price up; more sellers than buyers pushes it down. A price is just where the two sides meet.

The tug of war

Imagine a market as a tug of war. Buyers pull the price up. Sellers pull it down. Right now, the rope sits where the two sides are equally strong. When one side gets stronger, the rope moves, and that movement is what you see on the chart.

BUYERS SELLERS Price More buyers than sellers: the price is pushed up
When buyers are stronger than sellers, the price rises. When sellers take over, it falls.

What makes one side stronger?

Common mistake

“The news was good, so the price must go up.” Not necessarily. If everyone already expected the news, the price may have moved before it was released, and may even drop after it.

Try it in GeekAlpha

Run an analysis on any asset and look at the news behind the move. Then compare it with the chart: can you see where buyers or sellers took control?

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Remember in 3 lines
  • Prices move when buyers and sellers are unbalanced.
  • News, expectations, emotions and liquidity all change the balance.
  • Markets react to what people expect, not only to what happens.

Check your understanding

Three quick questions. Pick an answer to see the explanation.

1. Why does a price go up?

Price rises when more people want to buy than sell at the current level.

2. A company reports good results, but the stock falls. A likely reason is…

Markets price in expectations, so news that was already expected can lead to little or even a negative reaction.

3. What does low liquidity mean for price?

With few participants, a single order can push the price much further than it would in a busy market.

For education and information only. Not investment, financial or tax advice. Trading and investing involve a high risk of loss. Examples are illustrative. Read the full Risk Disclosure & Disclaimer.