Market Structure Basics
Understand market structure through swing highs, swing lows, and trend sequence so you can describe price before trying to predict it.
Market structure is the simplest useful way to organize price action. Instead of asking “where will price go next?” start with “what is price doing now?”
In the LiquidityLab Market Structure OS, this page belongs to the Structure layer. Read it before framework-specific vocabulary such as SMC, Wyckoff, Elliott Wave, harmonic patterns, or Chan Theory.
Core idea
Structure is the relationship between swing highs and swing lows.
- higher highs and higher lows suggest an uptrend
- lower highs and lower lows suggest a downtrend
- mixed swings suggest a range or transition
Some teaching models use a four-state shorthand such as expansion, pullback, reversal, and consolidation.
LiquidityLab treats these as review labels, not market-maker proof. Expansion describes movement away from balance. Pullback describes movement against a prior push. Reversal describes a possible change in the active sequence. Consolidation describes range-like balance.
The label is useful only after the visible structure supports it.
Why structure matters
Without structure, every concept becomes isolated. With structure, you can place ideas in order:
- key levels become more meaningful
- liquidity targets become easier to spot
- continuation and reversal ideas become easier to separate
Impulse and pullback
Most trends are not straight lines. They alternate between:
- impulse: movement in the trend direction
- pullback: movement against the trend direction
That rhythm matters because continuation setups usually make more sense after pullbacks than in the middle of emotional expansion.
When structure may be changing
Structure changes when the old sequence stops holding. That is where ideas like BOS vs MSS help.
The key point: a possible shift is information, not an order to trade.
A useful habit
On any chart, write one sentence before anything else:
“Price is making ___ highs and ___ lows on this timeframe.”
If you cannot finish that sentence clearly, your read is not ready.
Continue with
- LiquidityLab Market Structure OS
- Market Structure Basics: From BOS to MSS
- Four Market Scenarios Framework
- BOS vs MSS
Educational content only. Not financial advice.