Limit Orders: Price Control, Execution Trade-Offs, and Order Risks
Summary
A limit order sets the worst acceptable price for a buy or sell. A buy limit is generally placed below the current market and executes at its limit price or better; a sell limit is generally placed above the market and executes at its limit or better. The document contrasts a buy limit, which seeks a lower entry, with a trigger order, which can enter after an upward price move. It also mentions stop-limit orders, which combine a stop trigger with a limit price.
The main trade-off is price control versus execution certainty: an order may remain unfilled if the market does not reach its limit, so a favorable move can be missed. Liquidity, volatility, order monitoring, and platform fees can affect outcomes. The examples are illustrative rather than empirical, and the article’s statement that brokers execute when a price reaches the limit does not explain queue priority, partial fills, or venue-specific rules. Traders should distinguish the trigger condition from the limit price and account for the possibility of non-execution.
Key ideas
- A limit order specifies the least favorable price a trader will accept for a buy or sell.
- A buy limit usually seeks execution below the current market, while a sell limit seeks execution above it.
- Limit orders provide price control but may remain unfilled when the market does not reach the specified price.
- Liquidity, volatility, fees, and order monitoring affect the practical use of limit orders.
- Stop-limit orders use a trigger price and a separate execution limit, so triggering does not guarantee a fill.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.