Pending Orders: Buy Stop, Sell Stop, Buy Limit, Sell Limit

The four pending order types are confused more often than anything else in a trading terminal, because their names describe mechanics rather than intent. One rule resolves it: a stop is placed in the direction of the move, a limit against it.

The rule that removes the confusion

A buy stop sits above the current price, a buy limit below it. A sell stop below, a sell limit above. The logic is that a stop buys higher and a limit buys lower. So a stop means enter if the move continues in this direction, and a limit means enter if price comes back to me first. The same intention to buy is expressed by two opposite orders.

When a stop is appropriate

When the idea rests on continuation: a level break, an exit from a range, confirmation of direction. You do not want to enter until price has demonstrated intent. The price of that is a worse entry and exposure to slippage: a stop executes as a market order at the moment the move has already begun, which is exactly when execution is at its worst.

When a limit is appropriate

When the idea rests on a return: entry from support, a pullback in a trend, work from a range boundary. A limit guarantees price — the fill will be no worse than specified. The price is different: there is no guarantee of a fill at all. Price may turn before reaching your level and the trade never happens, even though you had the direction right.

Choosing for your task

The choice is dictated by the type of idea, not by convenience. A breakout strategy does not work on limit orders: you would be entering against the break. A mean-reversion strategy does not work on stop orders either: you would be buying at the highs. The practical check is simple — state your entry condition in words, and the right order type becomes obvious: 'if it goes further' means a stop, 'if it comes back here' means a limit.

This material is educational and is not individual investment advice. Trading forex carries the risk of losing capital.