What a Fair Value Gap is

A three-candle imbalance where price moved so quickly that the middle candle's range was never traded through by its neighbours. The untouched span is the gap. It marks a zone where buying and selling did not meet in the usual way, which is why price often returns to it later.

Filled versus active zones

A gap is active until price trades back through it, and filled once it does. Filled gaps are history: they explain past moves but carry no pending pull. The scanner filters them out before ranking, so the list shows zones that can still act as magnets rather than a log of what already happened.

How traders use imbalance zones

As locations to wait at rather than signals to act on. A common approach is to let price return to an active gap that sits in the direction of the higher-timeframe trend, then look for a separate confirmation there before entering. A gap against the prevailing trend is treated as a likely pause, not a reversal.

Do all gaps get filled?

No, and treating them as certainties is the common mistake. Gaps created during strong trends can stay open for a long time, and some are never revisited. Size and timeframe matter: a gap on a daily chart carries more weight than one on a five-minute chart, and a very wide gap may be filled only partially.