Any order that is not meant to execute immediately, but rather waits for a condition (usually a price level) to be met. In cTrader, limit orders, stop orders, and stop-limit orders are all pending orders (as opposed to instant market orders). They sit in the system until the trigger price is reached or the order expires. When the condition is met, the pending order will execute (becoming a market order in the case of a Stop, or filling at the limit price for a Limit order). If you do not set an expiry, the pending order remains active until canceled (Good ‘Til Cancelled).