Equal Highs / Equal Lows
Two or more swing highs (or lows) at nearly the same price — they look like strong resistance or support, which is exactly why stops stack beyond them.
Equal Highs are two or more swing highs that top out at nearly the same price; Equal Lows are the mirror image at the bottom. To most traders they look like proof of strong resistance or support — "it has held twice." That belief is what makes them dangerous.
Every trader who sold the second test of Equal Highs puts a stop just above them. Every breakout trader puts a buy order just above them. The result is one of the thickest Liquidity Pools on the chart, sitting in a very tight band. SPXXL calls that pool a Trap Pool.
How SPXXL detects them: the engine finds swing points (a bar whose high or low is more extreme than the two bars on each side), then groups swings that sit within a small tolerance of each other. Two or more separate visits make a Trap Pool; the chart labels how many (×2, ×3).
For 0DTE traders: Equal Highs are more likely to be swept than to hold forever, and more likely to be swept than to launch a clean breakout. Waiting for the sweep and the reaction is the edge; building a vertical debit spread only after structure confirms keeps your risk defined.
This entry is educational and uses SPX for illustration — it is not financial advice, and no outcome is predicted or guaranteed.
Related Terms
SPXXL's name for the Liquidity Pool resting beyond Equal Highs or Equal Lows — the level that looks safest to lean on and is the likeliest to be swept.
A cluster of resting stop orders sitting just beyond an obvious level — the fuel large players need to fill size. A location, not a signal.
A session where price probes beyond key levels to trigger clustered stop-loss orders before reversing — designed to trap directional traders.
Price runs through a Liquidity Pool, fills the stops, and closes back inside — the break fails, and the traders who chased it become fuel for the move the other way.
The break of a prior swing high or low caused by the move away from a zone — the "birth certificate" that proves real orders, not random noise, were behind it. No Swing Break, no valid zone.