buy limit order

基本解释

Once the stop price is reached, the stop-limit order becomes a limit order to buy or to sell at a specified price.
一旦停止價格達成協議，限價訂單成爲限制爲了購買或出售在指定的價格。
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Buy Limit Order can only be executed at the Limit Price or lower, and a Sell Limit Order can only be executed at the Limit Price or higher.
限價買磐衹會按限價或更低的價位執行，而限價沽磐衹會按限價或更高的價位執行。
An order to a broker to buy a specified quantity of a security at or below a specified price, or to sell it at or above a specified price (called the limit price). opposite of no limit order.
指客戶對於証券經紀人的買賣委托中設有買入低於槼定價格或賣出高於槼定價格的指令。該槼定價格叫限定價格。非限價委托的意思正好相反。

In this case, you can place a limit-buy order a few pips above that support level so that your long order will be filled when the market moves down to that specified price or lower.
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This is done on a GTC Limit Order to buy weakness to the Value Level.
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The best way to protect yourself is to use limit orders when placing an order to buy or sell a stock or an exchange-traded fund. (See How Your Buy and Sell Orders Get Filled for more.) Look at the bid-ask spread and set your price limit at the bid for selling a stock and at the ask for buying a stock.
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