A liquidity grab is a deliberate price move engineered—often by institutional players or algorithmic systems—to sweep through clusters of stop-loss orders or pending buy/sell orders sitting at obvious technical levels such as recent highs, lows, round numbers, or chart pattern boundaries. By briefly piercing these levels, the market triggers the accumulated orders (creating a temporary liquidity pool), fills large institutional positions at favourable prices, and then reverses sharply in the opposite direction—trapping retail traders who entered on the breakout. Liquidity grabs are a core concept in Smart Money Concepts (SMC) trading and are identified by a swift false breakout candle followed by an immediate and strong reversal, leaving a long wick on the candlestick.