限价委托指客户对于证券经纪人的买卖委托中设有低于市场价格的买进价格，或高于市场价格的卖出价格之指示。当市场价格达到其他设定的价格时，即成交。即经纪人只会在客户委托的价格限制内进行交易。

限价委托的英文用“limit order”来表示。其英文释义如下：A limit order is an order to buy or sell a stock with a restriction on the maximum price to be paid or the minimum price to be received (the "limit price"). If the order is filled, it will only be at the specified limit price or better.

了解限价委托之后，“买入限价委托”和“卖出限价委托”即非常容易了解了。

买入限价委托buy limit order

A buy limit order is an order to purchase an asset at or below a specified price, allowing traders to control how much they pay. By using a limit order to make a purchase, the investor is guaranteed to pay that price or less.

例如，某只股票的收盘价格为33元，客户根据其对股票走势的判断，预计股票价格有机会跌到30元，于是就进行限价委托，设定了30元的买入现价委托。如果股价跌至30元，则限价委托买入即成交，反之，即使股价跌到30.125元，经纪人也不会执行此项委托。

卖出限价委托sell limit order

A sell limit order is an order to sell an asset at or above a specified price, allowing traders to control how much they receive.

接着上面的例子讲，反之，如果客户希望在33元出售该股票，而现行价格是30元，则经纪人一定会等到股价到达33元时才有进场买卖。

因限价委托有时会产生相当大的利润，所以投机者冒着其设定的价格水准可能不会达到而无法成交的风险，使用该种限价委托。

以下为相关双语示例，供参考：

If you specify a Price Bound (upper bound and / or lower bound) for a given Instruction, and when the Instruction (whether given by way of a Market Order or a Limit Order) is received by the Bank's Trading System, the bid or ask price (as the case may be) is beyond the Price Bound, the Instruction will be automatically cancelled and will not be executed even if prices subsequently move within the Price Bound again.

如您在指示指定一个价格限度，而且当本行的交易系统接收到该指示时（不论该指示是市价委托或限价委托），当时的买入价或卖出价（视情况而定）在价格限度以外，则该指示将会被自动取消并不获执行，即使价格随后变动至价格限度范围内亦然。