Liquidity: Why Some Prices Jump
Liquidity is how easily you can buy or sell without moving the price. Lots of willing buyers and sellers means high liquidity.
Why this matters for beginners
Low liquidity can make prices jump, widen spreads and make it hard to sell when you want. This is general education, not personal advice.
Main explanation
In a liquid share, many orders wait at each price, so trades happen close to the last price.
In an illiquid share, few orders wait. A modest order can clear a price level and jump to the next one.
Supply and demand drive it: if far more people want to buy than sell, buyers must offer higher prices to get filled.
Liquidity can disappear in stressful moments, exactly when many people want to sell at once.
Example using a real company
A small company with a few thousand shares traded a day can move 5 percent on one fund's order, while a giant like Microsoft barely notices.
- →Liquid: spread of 0.01 on a 400 share price.
- →Illiquid: spread of 0.20 on a 5 share price, a 4 percent gap.
Common beginner mistakes
- ✕Using market orders on thinly traded shares.
- ✕Assuming you can always sell instantly at the last price.
Key terms
- Liquidity
- How easily something can be traded without moving its price.
- Thinly traded
- A share with few trades and few waiting orders.
Key takeaways
- 01Low liquidity means bigger price jumps and wider spreads.
- 02Limit orders help protect you in illiquid shares.
Check yourself
- 01What does high liquidity mean?
- 02Why can a small order move an illiquid share?
- 03Which order type helps in illiquid shares?
Try the concept on a real company
Compare a mega-cap with a smaller company in the Analyzer and think about how easily each trades.
Educational examples only. Not buy or sell recommendations.