Stock Trading Education
Stock Order Types: A Decision Guide to Market, Limit, Stop, Stop-Limit, and Trailing Orders
Investment Education, Research & Tools for Smarter Decisions.
Choosing the right order type can determine whether your trade executes, what price you receive, and how much control you keep when the market moves.
Direct Answer
The four core stock order types are market, limit, stop, and stop-limit orders, and each resolves the same tradeoff differently: market and stop orders prioritize getting the trade done, while limit and stop-limit orders prioritize controlling the execution price. No single order type is universally best, the right choice depends on whether completion or price control matters more for that specific trade.
Key Takeaways
- A market order fills fastest but does not control the execution price.
- A limit order controls price but can go unfilled if the market never reaches it.
- A stop order sits inactive until a trigger price is hit, then becomes a market order.
- A stop-limit order also triggers at a stop price, but converts into a limit order instead of a market order, so it can still fail to fill.
The Four Stock Order Types
The four stock order types every trader should understand are:
- Market order: executes as quickly as possible at the best currently available price. Read the full guide →
- Limit order: executes only at your specified price or better. Read the full guide →
- Stop order: activates when a specified stop price is reached and then becomes a market order. Read the full guide →
- Stop-limit order: activates when a specified stop price is reached and then becomes a limit order. Read the full guide →
The central tradeoff is straightforward:
Market and stop orders prioritize execution. Limit and stop-limit orders prioritize price control.
A market order generally offers the greatest likelihood of execution but does not guarantee the price. A limit order controls the acceptable price but may never execute. A stop order becomes a market order after its trigger is reached, while a stop-limit order becomes a limit order and can remain unfilled.
Advanced and Linked Order Types
Beyond the four core order types, most brokerage platforms let you link multiple orders together so entries and exits happen automatically, without watching the screen for every fill.
- Bracket order: pairs one entry order with a linked stop-loss and profit-target exit, staged automatically once the entry fills. Read the full guide →
- OCO order (One-Cancels-the-Other): links two orders so that filling either one automatically cancels the other, commonly a profit target paired with a stop-loss. Read the full guide →
- OTO order (One-Triggers-the-Other): keeps a secondary order inactive until a primary order fills first. Read the full guide →
- Marketable limit order: a limit order priced at or through the current quote, so it fills quickly like a market order while still capping your worst acceptable price. Read the full guide →
These structures combine the same underlying market, limit, and stop orders described above, they do not replace them. See Order Entry Mistakes for how to avoid ticket-level errors (wrong side, quantity, price, or time-in-force) on any of these order types before you submit.
Quick Answer: What Are the Main Types of Stock Orders?
A market order tells your broker to buy or sell immediately at the best available price.
A limit order tells your broker to buy or sell only at a specific price or better.
A stop order, sometimes called a stop-loss order, stays inactive until the stock reaches your stop price. It then converts into a market order.
A stop-limit order also activates at a stop price, but it converts into a limit order rather than a market order.
No order type is automatically best. The right choice depends on whether your priority is:
- Getting the trade completed
- Controlling the execution price
- Entering after a price breakout
- Exiting after a price decline
- Avoiding excessive slippage
- Managing the risk that an order never fills
Stock Order Types Comparison
| Order type | Main priority | What triggers execution? | Price guaranteed? | Execution guaranteed? | Common use |
|---|---|---|---|---|---|
| Market order | Speed and execution | Submitted immediately | No | Usually, but not absolutely | Entering or exiting liquid stocks quickly |
| Limit order | Price control | Market reaches the limit price or better | Yes, if executed | No | Buying below or selling above the current price |
| Stop order | Triggered execution | Market reaches the stop price | No | Usually after activation, but price may vary | Limiting losses or entering breakouts |
| Stop-limit order | Trigger plus price control | Market reaches stop, then limit conditions must be met | Yes, if executed | No | Controlling the worst acceptable price after activation |
The words “if executed” matter. A limit or stop-limit order can provide price protection, but the trade may remain partially filled or completely unfilled.
Market Order vs. Limit Order
The primary difference is what the order prioritizes.
Choose a market order when:
- Execution is more important than exact price
- The stock is actively traded
- The spread is narrow
- You need to enter or exit promptly
- You accept possible slippage
Choose a limit order when:
- Exact price control is more important
- You are willing to wait
- You are comfortable with the order not filling
- The stock has a wide spread
- You have a predefined entry or exit level
Need the trade completed now? Consider a market order. Need a specific price or better? Consider a limit order.
Stop Order vs. Stop-Limit Order
Both orders use a stop price, but they behave differently after activation.
Stop order, after activation:
- Becomes a market order
- Prioritizes execution
- Does not guarantee price
- Can experience slippage
Stop-limit order, after activation:
- Becomes a limit order
- Prioritizes price control
- Does not guarantee execution
- May remain unfilled during a rapid move
Priority is getting out after the stop triggers: a stop order offers a greater likelihood of execution, but the final price may be worse than expected. Priority is refusing to sell below a specific price: a stop-limit order offers price control. But you could remain in a falling position.
Which Stock Order Type Should You Use?
| Trading objective | Order type commonly considered |
|---|---|
| Buy a liquid stock immediately | Market order |
| Sell a liquid stock immediately | Market order |
| Buy only at or below a target price | Buy limit order |
| Sell only at or above a target price | Sell limit order |
| Exit after the stock falls to a trigger | Sell stop order |
| Enter after the stock rises through resistance | Buy stop order |
| Trigger an exit but refuse a price below your minimum | Sell stop-limit order |
| Trigger a breakout entry but cap the purchase price | Buy stop-limit order |
This table is educational rather than a personalized recommendation. The right order depends on the security, liquidity, spread, volatility, trade size, market session, strategy, and your broker's rules.
How Time-in-Force Affects Stock Orders
Order type determines how an order executes. Time-in-force determines how long it stays active.
- Day order
- Stays active for the current trading day. If unfilled, it generally expires after the applicable session.
- Good-til-canceled (GTC) order
- Stays active until it executes, expires under the broker's policy, or is canceled. GTC duration is broker-specific, it doesn't necessarily stay active forever.
- Immediate-or-cancel order
- Attempts to execute immediately. Any unfilled portion is canceled.
- Fill-or-kill order
- Must execute immediately and completely, or be canceled.
- Market-on-open / market-on-close order
- Seeks execution near the official market opening or closing process. Brokerage deadlines and availability vary.
Confirm with your broker whether an order applies during regular hours only or extended hours too, when it expires, whether it's adjusted after dividends or corporate actions, and whether partial fills are permitted.
Common Stock Order Mistakes
- Assuming the last price is your execution price. The last traded price describes a previous transaction, it's not a promise your next trade executes there. Check the current bid, ask, spread, available share size and volume.
- Treating a stop price as a guaranteed exit price. A stop price activates the order. It does not guarantee the execution price.
- Assuming a limit order must fill when touched. A stock can trade at your limit price without filling your entire order, other orders may have priority, or too few shares may be available.
- Using market orders in illiquid stocks. A thin order book can cause a market order to execute across several price levels.
- Setting stops too close to normal volatility. A stop placed inside the stock's ordinary price movement can be triggered by routine noise rather than a meaningful breakdown.
- Making the stop-limit range too narrow. A small gap between stop and limit prices raises the chance the market moves beyond the limit before execution.
- Forgetting overnight gaps. A stock can open well above or below its previous close after earnings, regulatory decisions, analyst changes, corporate announcements, economic reports, or geopolitical events.
- Ignoring broker-specific rules. Available order types, trigger methods, expiration policies and extended-hours support vary by brokerage firm.
Frequently Asked Questions About Stock Order Types
What are the four main stock order types?
The four main stock order types are market orders, limit orders, stop orders and stop-limit orders. Market orders prioritize immediate execution, limit orders prioritize price control, stop orders activate a market order once a trigger price is reached, and stop-limit orders activate a limit order once a trigger price is reached.
What is the safest stock order type?
There is no universally safest stock order type. A limit order protects against paying or accepting an unacceptable price, but it may not execute. A market order is more likely to execute but can produce an unfavorable price. The right choice depends on whether execution or price control matters more for that trade.
What is the best order type for buying a stock?
A market order can make sense when immediate execution in a highly liquid stock matters most. A limit order can make more sense when the maximum purchase price matters more than immediate execution.
What is the best order type for selling a stock?
A market order generally prioritizes exiting quickly. A sell limit order prioritizes a minimum acceptable price. A stop order creates a triggered exit, while a stop-limit order creates a triggered exit with an added price restriction.
Are market orders or limit orders better for beginners?
Beginners should understand both. Market orders are simpler but expose the trader to price uncertainty. Limit orders provide more price control but introduce the possibility that the trade never executes.
What is a trailing stop and how does it differ from a regular stop?
A trailing stop sets its trigger at a distance from the price rather than at a fixed level, and that trigger follows the price when it moves favourably while staying put when it moves against you. It automates the act of raising a stop behind a rising position. The tradeoff is that the trailing distance is a fixed rule applied to a market whose volatility changes, so a distance that was appropriate in calm conditions can be too tight in turbulent ones.
What do fill-or-kill and immediate-or-cancel mean?
Both instruct the venue to act on the order at once rather than let it rest. Immediate-or-cancel executes whatever quantity is available right now and cancels the remainder, so partial fills are expected. Fill-or-kill requires the entire quantity to be available immediately or the whole order is cancelled with nothing done. They answer different questions: whether you will accept part of a position, and whether you will accept none.
Can I change an order after submitting it, or do I have to cancel and re-enter?
Most platforms offer a modify function, but at the venue level a modification is usually processed as a cancel followed by a new order. The consequence is that you lose your place in the queue at that price, and between the cancel and the replacement there is a brief window where no order is working. For a resting order in a busy book, that lost priority can matter more than the change you were making.
Which order types are available for fractional shares?
Fractional support varies considerably by broker. Some accept fractional quantities on market orders only, and require whole shares for limits and stops, because fractional trades are often filled from the broker's own inventory rather than routed to an exchange. Others support limits on fractional quantities. This is a broker-level design decision rather than a market rule, so it is worth checking rather than assuming.
Final Takeaway
The correct stock order type depends on what you're trying to control.
- Use a market order when execution speed is the priority.
- Use a limit order when the execution price is the priority.
- Use a stop order when you want a price level to trigger a market order.
- Use a stop-limit order when you want a price level to trigger an order with a defined price boundary.
Every order involves a tradeoff between price, speed and certainty. Before placing a live trade, define your entry price, the price at which your thesis becomes invalid, your maximum acceptable buy price, your minimum acceptable sell price, whether execution or price control matters more, and what could happen if the stock gaps past your selected level.