Market vs Limit Orders

Every trade starts with the same choice: do you want to trade now, or at your price? A market order gives you the first; a limit order gives you the second. You cannot have both guaranteed at once. This lesson puts the two side by side so you can choose deliberately instead of by habit.

The core trade off#

The cost of each choice#

The right answer depends on how much you lose by missing a trade versus how much you lose by paying the spread and slippage.

When to use a market order#

• Exiting a position that has failed. Getting out matters more than a few cents.
• Very liquid markets during normal hours, where the spread is one tick and size is plentiful.
• Small orders that are a fraction of the size at the best price.
• Fast breakouts where a limit order would likely be left behind.

When to use a limit order#

• Entries where you can wait, such as buying a pullback to support.
• Profit targets, where you are happy to sell at a higher price.
• Thin markets, small caps, options and minor crypto tokens, where market orders can fill far from the quote.
• Outside regular hours, when spreads are wide.
• Large orders, to avoid walking the book.

The middle ground: marketable limit orders#

A marketable limit order is a limit order priced at or slightly through the current quote: for example, a buy limit at $50.06 when the ask is $50.04. It fills immediately like a market order in normal conditions but cannot fill above $50.06 if the price suddenly jumps or the book thins. Many professional traders use this instead of plain market orders. See Market Orders and Limit Orders.

A decision guide#

1. Is getting out or in right now essential? Use a market or marketable limit order.
2. Is the spread wide or the market thin? Use a limit order.
3. Is your price a real level from your plan? Use a resting limit order there.
4. Would missing this trade cost more than the spread? Lean towards filling: marketable limit.
5. Is news about to hit? Prefer limits, or wait.

Common mistakes#

• Market orders on options and small caps, where spreads can be 5% or more.
• Chasing after missing a limit fill, paying more with a market order than if you had used one at the start.
• Placing limits at round numbers like $50.00, where long queues form.
• Using limit orders for urgent exits, leaving you stuck in a falling position.

Frequently asked questions#

Is a limit order always better than a market order?#

No. Limit orders control price but can miss trades. Market orders are better when filling quickly matters more than a small price difference.

Do market orders cost more?#

They pay the bid ask spread and sometimes slippage and higher exchange fees, so they usually cost more per trade than a limit order that fills.

Which order should beginners use?#

Limit orders for planned entries and targets, marketable limits when speed matters, and stop orders for protection.

Sources#

• U.S. Securities and Exchange Commission, Market order
• U.S. Securities and Exchange Commission, Limit order