What is the difference between a market order and a limit order?

A market order buys or sells right now at the best price available. A limit order only goes ahead at a price you choose or better — it waits, and might not happen at all if the price never gets there.

Should a beginner use a market order or a limit order?

A market order is simplest and happens instantly — fine for big, popular investments whose price barely moves. A limit order gives you control over the price, which helps on smaller or fast-moving stocks, but it might not go through.

Can a limit order not go through?

Yes. If the price never reaches the number you set, the order just waits and can expire without happening. That is the trade-off for controlling the price you pay.

Beginner guide

Market order vs limit order

By the Stock Classroom team · Plain English, no jargon · Educational, not financial advice · Last updated 2 July 2026

When you buy or sell a share, your app asks how you want to do it. The two you'll meet first are the market order and the limit order. The whole difference is one thing: speed vs price control.

In one sentence

A market order = "buy it now, whatever the price" (fast). A limit order = "only buy at the price I choose" (you're in control, but it might not happen).

Market order = speed (buys now). Limit order = control (waits for your number).

Market order — "just get me in"

A market order says: "buy (or sell) right now, at the best price going." It happens almost instantly. The small catch: you accept whatever the price is at that exact second — which, on a fast-moving or rarely-traded share, might be a touch different from what you saw a moment ago.

Limit order — "only at my price"

A limit order says: "only buy if the price is £9.50 or lower" (or, for selling, a price or higher). You're in charge of the price. The trade-off: if the price never reaches your number, nothing happens — the order just sits and waits, and can expire.

A quick example

Say a share is bouncing around £10, and you'd rather not pay more than £9.50 for it:

The limit order patiently waits, then buys the instant the price hits your number.

Market order = "get me in now." Limit order = "get me in, but only at my price."

So which should you use?

Use a…	When	Why
Market order	Big, popular shares & funds (like a global ETF)	The price barely moves between clicking and buying, so simplest is fine
Limit order	Smaller or jumpy shares, or any time you want a set price	Protects you from paying more than you meant to

Beginner tip: if you're buying a big, everyday index fund or ETF for the long term, a market order is usually perfectly fine. Save limit orders for when the price really matters to you.

Practise placing both — risk-free

In Stock Classroom you place real market and limit orders on a free simulator, so it clicks before you ever use real money.

Start the free course → How to start investing

Quick answers (FAQ)

What's the difference?

A market order buys now at the going price; a limit order only buys at a price you set or better, and might not happen.

Which should a beginner use?

Market orders are simplest for big, popular investments; limit orders give price control on smaller or fast-moving ones.

Can a limit order not happen?

Yes — if the price never reaches your number, it just waits and can expire. That's the trade-off for control.

Sources & further reading

Stock Classroom is educational and does not provide financial, investment or tax advice. Investing involves risk, including the possible loss of the money you invest. Always do your own research or consult a qualified, regulated adviser before making decisions.