Glossary · Prop Firms
Limit Order
A limit order is an instruction to buy or sell a security only at a specified price or better. A buy limit sits below the current market price; a sell limit sits above it. The order rests in the order book until the market trades to that price, offering price control but no fill guarantee.
Why it matters
Prop traders operate under strict drawdown and profit target rules, so controlling entry and exit cost directly affects how much cushion remains for error. Because limit orders only execute at price priority (better prices fill first, then earlier orders at the same price), a fast-moving market can leave your order unfilled and your position unprotected, unlike a market order that trades immediately at whatever price is available.
Live data
Example
Suppose ES is trading at 4,500 and a trader wants a better entry at a support level of 4,485. Placing a buy limit at 4,485 means the order only fills if price actually trades down to that level or lower; if the market reverses higher without dipping to 4,485, the order simply never fills, no different from missing the trade entirely. A stop order, by contrast, would convert to a market order once triggered, accepting slippage in exchange for guaranteed execution.
Common misconception
Traders often assume a limit order fills the instant price "touches" their level. In reality, the market must trade through the price with sufficient volume at that level. A brief wick or a single print can leave the order unfilled, or only partially filled if size at that price was limited, which is why relying solely on limit orders near obvious support or resistance can produce worse outcomes than expected.
Related terms
See also
Use the Compare Prop Firms tool to check which firms' platforms and order execution conditions suit limit-order based strategies.
Sources
Order type mechanics like these are described in broadly similar terms across most prop firms' trading platforms.
Risk disclaimer: Trading carries a substantial risk of loss and is not suitable for everyone. Prop-firm evaluations charge fees and most traders do not pass. Nothing here is financial advice; figures can change, so verify current terms with the firm before purchasing.
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