Stock market order types
Family II · Orders
Not to be confused with stock limit order, stock market.
Stock market order types are the instruction formats that determine the price and timing conditions under which a stock trade is filled. Each type sets a different trade-off between certainty of execution and certainty of price. The main categories are market orders, limit orders, stop orders and stop-limit orders, with variations such as market-on-open and market-on-close orders used for specific sessions.
Core order types
Most venues and brokers support a common set of order types, though the exact menu and naming vary by broker, exchange and country.
- Market order — executes immediately at the best available price; execution is near-certain, price is not.
- Limit order — executes only at a specified price or better; price is controlled, execution is not guaranteed.
- Stop order — becomes a market order once a trigger price is reached; used to limit losses or protect gains.
- Stop-limit order — becomes a limit order at a trigger price, combining a stop trigger with a price ceiling or floor.
Additional types include market-on-open, market-on-close, all-or-none, immediate-or-cancel and fill-or-kill, each imposing its own execution condition.
Worked example
A trader holds 500 shares of a stock trading at 50.00 and wants to limit downside while keeping upside potential.
Choosing between types
The choice depends on whether the priority is execution certainty or price certainty. A market order prioritises execution; a limit order prioritises price. Stop orders are conditional and are typically used for risk management rather than entry. Because order handling rules, available order types and trigger behaviour differ between brokers, exchanges and jurisdictions, the specific mechanics should be confirmed with the relevant venue or intermediary.
Often confused with
- stock limit order
- A stock limit order is the same instrument as a limit order in stock trading, referring to a single order type, while stock market order types is the umbrella category covering all instruction formats; the visible sign is that the umbrella term appears in plural and lists multiple order categories.
- stock market
- A stock market is a regulated venue where shares of publicly listed companies are issued, bought and sold, with prices set by supply and demand among participants.