| an order to buy or sell a specified amount of a security at the best price available. |
| market order n. An order to buy or sell stocks or commodities at the prevailing market price. |
Market Order
An order to buy or sell a stock immediately at the best available current price.
Investopedia Commentary
A market order guarantees execution, and it often has low commissions due to the minimal work brokers need to do. Be wary of using market orders on stocks with a low average daily volume: in such market conditions the ask price can be a lot higher than the current market price (resulting in a large spread). In other words, you may end up paying a whole lot more than you originally anticipated! It is much safer to use a market order on high-volume stocks, such as Microsoft or Wal-Mart.
A market order is sometimes referred to as an unrestricted order.
Related Links
Demo Before You Dive In
Brokers and Online Trading
Understanding Order Execution
The Basics Of Order Entry
See also: Discretionary Order, Limit Order, Market If Touched (MIT), Order, Spread, Stock
market order