Who it's for — For those who need to enter or exit the market instantly, accepting the risk that the obtained price might not be exactly what was displayed on the screen.
The Market Order is the most aggressive directive an operator can give to the broker: "Buy (or sell) this asset for me now, regardless of the price."
Execution is guaranteed, but the price is not. The system will "sweep" (consume) the orders present in the Bid/Ask spread until it has filled your entire size.
In simple terms — Imagine you want to buy 10 Apple shares at market. The system will look at who is selling them in that millisecond. If the first seller offers 5 at $150, the second 3 at $150.10, and the third 2 at $150.50, you will pay an average of these prices. The larger your order and the less liquid the market, the worse the average price will be (this phenomenon is called Slippage).
Pros and Cons
| Pro | Con |
|---|---|
| Speed: Enter or exit instantly. | Cost: You pay the spread and suffer slippage. |
| Certainty: The order is always executed. | Surprises: In times of high volatility, the executed price can be much worse than expected. |
When to use it
- Emergency exits: When a position is going heavily into loss and you must exit immediately before it gets worse.
- Aggressive breakouts: When the price breaks a key resistance and you want to jump on board before it escapes.
Summary Sheet
- Guarantee: Execution (quantity).
- Variable: Price.
- Role: Liquidity "Taker" (you pay higher fees because you remove orders from the book).
Links
- limit-order — The conservative alternative to the market order.
- slippage — The hidden cost of urgency.
- bronze-path
Module: Module 3 — Orders and Operations
Know what happens when you click buy or sell.
