Options Order Types Explained: Limit, Market, Stop, and Advanced Orders
Summary
Order type selection on options trades matters more than on stock trades because options have wider bid-ask spreads and lower liquidity. A market order on an illiquid option can fill $0.50-$1.00 worse than the mid-price, costing $50-$100 per contract instantly. This guide covers every order type, when to use each, and the settings that prevent costly execution mistakes.
Key Takeaways
Always use limit orders on options. Start at the mid-price and adjust in $0.01-$0.05 increments if not filled within 30 seconds. Never use market orders on options (the fill price can be dramatically worse than expected). Use GTC (good-til-canceled) orders for profit targets and stop losses. For multi-leg strategies, use the "natural price" or "net credit/debit" order types rather than legging in separately. These rules prevent the hidden execution costs that silently erode options trading returns.
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A stock trader using market orders pays $0.01-$0.03 in spread cost, barely noticeable. An options trader using market orders can pay $0.10-$1.00 in spread cost per contract. On a 10-contract order, that's $100-$1,000 of immediate loss before the trade has a chance to work.
Limit Orders: The Default for Every Options Trade
What it does: Specifies the maximum price you'll pay (for buying) or the minimum price you'll accept (for selling). The order only fills at your price or better.
How to use it:
Example: Bid $2.40, Ask $2.60, Mid $2.50
Why it works: Market makers are often willing to trade near the mid-price. By starting there and incrementing slowly, you capture the best available price without paying the full ask.
Market Orders: Almost Never Use
What it does: Fills immediately at whatever price is available.
When to avoid: Essentially always on options. The fill can be dramatically worse than expected, especially:
The one exception: If you're closing a position to prevent assignment or exercise in the final minutes before expiration and cannot wait for a limit fill. Even then, set a limit slightly worse than the current ask rather than using a pure market order.
Stop Orders for Options
Stop-Loss Orders
What it does: Becomes a market order when the option reaches a specified price.
Warning: Stop-loss orders on options are dangerous. Options prices can be volatile intraday, triggering your stop on a temporary spike before reverting. The market order execution after trigger can be at a terrible price.
Better alternative: Set a price alert instead. When alerted, evaluate the position and close manually with a limit order if warranted.
Stop-Limit Orders
What it does: Becomes a limit order (not market) when triggered. Safer than a stop-loss because the fill price is bounded.
The risk: If the option gaps through your limit price, the order won't fill and you're stuck with the losing position.
Use for: Large account positions where you want automated management but can't afford market order fills.
GTC (Good-Til-Canceled) Orders
What it does: The order remains active until filled or until you cancel it (up to 60-180 days depending on broker).
Essential use: Set a GTC limit order to close at your profit target immediately after opening any position.
Example workflow:
When the spread decays to $0.75, it automatically closes. No monitoring required.
Multi-Leg Order Types
Net Debit/Credit Orders
For spreads, iron condors, and other multi-leg strategies, enter all legs as a single order with a net debit or net credit.
Why: Legging in (entering each leg separately) exposes you to "leg risk"—the market moves between your entries, and you end up with a worse combined price.
Example: Iron condor with 4 legs
Natural Price vs Mid-Price
Natural price: The combined bid for the entire spread. You'll fill immediately but at the worst price. Mid-price: The combined mid of all legs. Better price but may not fill.
Start at mid-price, move toward natural in $0.05 increments. Same principle as single-leg limit orders.
Advanced: Conditional Orders
One-Cancels-Other (OCO)
Set two orders: a profit-taking limit and a stop-loss limit. When one fills, the other cancels automatically.
Use for: Complete automated trade management. Set the profit target and loss limit, then don't touch the position.
One-Triggers-Other (OTO)
When the first order fills, it triggers a second order automatically.
Use for: After selling a credit spread, automatically placing the GTC buy-to-close order for profit-taking.
Platform-Specific Tips
Thinkorswim: Use "Analyze" tab to preview order execution. Use "Blast All" for multi-leg order entry.
Tastytrade: The default order type is already optimized for options (mid-price limit). The platform auto-suggests credit/debit targets.
Interactive Brokers: Use "Adaptive" order type, which starts at mid-price and automatically adjusts toward the natural price over time.
Robinhood/Webull: Limited order type options. Stick with limit orders and manually adjust.
OptionsPilot's strike finder provides real-time bid-ask data and mid-price calculations for any strike, helping you set accurate limit prices before placing orders with your broker.