Trading Basics
Supply And Demand
How markets move and how to read a chart without fooling yourself.
In this lesson
- How supply and demand set prices
- Why markets move
Key takeaways
- 1Prices rise when demand outpaces supply
- 2Markets are the balance of buyers and sellers
- 3No central authority sets a free-market price
Lesson summary
Supply and demand explain price at the simplest level: price rises when aggressive demand overwhelms available supply, and falls when sellers overwhelm buyers.
Mental model
Supply And Demand in plain terms
Supply and demand explain price at the simplest level: price rises when aggressive demand overwhelms available supply, and falls when sellers overwhelm buyers.
- How supply and demand set prices
- Why markets move
Mechanics
How to reason about supply and demand
Order books show available bids and asks at different prices.
Large buyers may need to lift multiple ask levels, moving price upward.
Supply can also come from unlocks, emissions, miners, market makers, or early holders.
- Prices rise when demand outpaces supply
- Markets are the balance of buyers and sellers
- No central authority sets a free-market price
Example
Seeing supply and demand in action
If a thin token has only a small amount offered near the current price, a modest market buy can move it sharply because supply is shallow.
Common mistakes
Common mistakes with supply and demand
Beginners often treat demand as social interest only. Real demand must become orders that absorb available supply.
Risk notes
What can go wrong with supply and demand
Supply can appear suddenly through unlocks, whale deposits, market maker inventory, or panic selling.
- Explain why price moves up.
- Identify one source of supply.
- Check liquidity depth before trading.
Practice
Put supply and demand to work
- Explain why price moves up.
- Identify one source of supply.
- Check liquidity depth before trading.
Review
Key terms
- Liquidity
- How easily an asset can be bought or sold without moving its price much.
- Whale
- A holder large enough to move markets with their trades.
- Market Maker
- A participant that continuously quotes buy and sell prices to provide liquidity.
- Technical Analysis
- Studying price and volume history to estimate probable future moves.
- Support / Resistance
- Price levels where buying (support) or selling (resistance) pressure historically clusters.
Source notes
Editorial references
These references are starting points for verifying the mechanisms, risk checks, and product context behind this lesson.
Before you continue
Can you do these?
- Explain why price moves up.
- Identify one source of supply.
- Check liquidity depth before trading.
Related learning
Keep reading
Checkpoint
Finish this lesson
Pass the check to save progress, then continue through the track in order.
Lock in this lesson
Answer every question correctly to complete the lesson.
Prices rise when…