A price region where many stop-loss and pending orders cluster — a magnet for price.
Liquidity zones typically form just below old lows (stacked long stop-losses) and above old highs (stacked short stop-losses). Large participants need liquidity to open positions without slippage and often push price into these zones to harvest the stops (a stop hunt or liquidity grab). The actual move in the opposite direction frequently follows. Suna AI Vision computes liquidity zones from tick history walk-forward, so there's no look-ahead bias.
EUR/USD breaks an old 24h low by 8 pip, sweeps the stops, instantly reverses up — classic liquidity grab.