Market basics

What is a market, really?

A market is a matching engine for buyers and sellers — not an app, not a tip line, and not a guarantee of profit.

By Dr. Elena Voss

Direct answer

A financial market is a system where buyers and sellers meet to trade instruments at prices set by supply and demand. Your platform shows a price because someone is willing to take the other side.

Before you worry about indicators or lot sizes, you need a clear picture of what you are interacting with when you trade. A market is not a single building or app — it is the rules and infrastructure that match buyers with sellers.

Buyers, sellers, and liquidity

Every price you see exists because a counterparty is available. On many retail platforms, market makers provide liquidity so your order can fill immediately — that convenience has a cost called spread and slippage.

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  • More participants usually means tighter spreads
  • Thin markets can gap through your stop
  • Your edge (if any) must survive real execution costs

FAQ

Is the stock exchange the same as “the market”?
An exchange is one venue. “The market” describes the broader system of matching buyers and sellers.
Why do prices move?
Prices move when the balance of willing buyers and sellers changes at the current level.

Continue in the curriculum

Learn this properly in a structured lesson

Guides give you context. The course gives you order, objectives, and a quiz so you know what stuck.

Foundations · Lesson 1

Educational content only — not financial advice. Trading involves risk of loss. See our risk warning and editorial policy.