Market Structure in Day Trading: BOS, MSS, Liquidity and Fair Value Gaps

Market structure gives traders a framework for reading price action instead of treating every candle as an isolated signal. Concepts such as Break of Structure, Market Structure Shift, liquidity and Fair Value Gaps can help organize that framework.

Break of Structure (BOS)

A Break of Structure generally describes price moving through a meaningful prior swing level. Traders often use it as evidence that the current structure is continuing or changing, depending on context.

Market Structure Shift (MSS)

An MSS is commonly used to describe a change in short-term structure that can support a potential directional shift. It should not be treated as a guaranteed reversal signal.

Liquidity

Liquidity often builds around obvious highs, lows and areas where many orders may be concentrated. Understanding where those areas sit can help traders think about where price may seek orders before continuing or reversing.

Fair Value Gaps

Fair Value Gaps are areas of imbalance created during aggressive price movement. Some traders use them as potential areas of interest when combined with broader structure and confirmation.

Why context matters

None of these concepts should be viewed in isolation. NGF systems combine multiple factors to support a structured decision process rather than relying on a single condition.

Trading involves risk. Market-structure concepts and indicators do not guarantee future outcomes.