Market structure trading: how to read swing highs and lows

Market structure trading starts from one idea: price moves in waves, and the shape of those waves tells you who is in control. If you are understanding market structure for the first time, you only need to learn four labels and two events. This guide explains them, shows how to mark them on a chart, and ends with a live Bitcoin example from our engine.

What is market structure in trading?

Market structure is the sequence of swing highs and swing lows on a chart. A swing high is a peak with lower highs on both sides. A swing low is a trough with higher lows on both sides. Join them in order and you see whether price is climbing, falling or moving sideways.

Traders use market structure in trading for three reasons. It gives a direction without any indicator. It gives clear places to be wrong, because a trend is "broken" when a specific swing fails. And it works on any timeframe, from the 1h to the 1d, on any coin.

The four swing labels: HH, HL, LH, LL

Each new swing is compared with the one before it of the same kind.

• Higher high (HH): a swing high above the previous swing high.
• Higher low (HL): a swing low above the previous swing low.
• Lower high (LH): a swing high below the previous swing high.
• Lower low (LL): a swing low below the previous swing low.

An uptrend is a run of HH and HL. A downtrend is a run of LH and LL. When the labels are mixed, for example a HH followed by a LL, the market is not trending. It is ranging, or it is changing direction.

How to mark swing points

1. Pick one timeframe. Start with the 4h or the 1d, because the swings are cleaner.
2. Find the highs and lows that stand out. A swing high needs a lower high on each side. A swing low needs a higher low on each side. Ignore the small wiggles inside a candle cluster.
3. Label each swing against the previous one: HH, HL, LH or LL.
4. Draw a horizontal line at the most recent swing high and swing low. These are the levels that matter next.

Two people can mark slightly different swings on the same chart. That is normal. The rule is to be consistent. Our engine uses fixed rules, so the same candles always produce the same labels. See the methodology.

Break of structure and change of character

Structure has two events.

A break of structure (BOS) happens when price closes beyond the last swing in the direction of the trend. In an uptrend, a close above the last swing high is a bullish BOS. It confirms the trend is still working. Read the full guide: Break of Structure.

A change of character (CHOCH) happens when price breaks against the trend for the first time. In an uptrend, a close below the last higher low is a bearish CHOCH. It does not mean the trend has reversed. It means the pattern of HH and HL has failed once. Read the full guide: Change of Character.

Our engine also tags each event with a scope. An internal event breaks a smaller swing inside the current range. An external event breaks a major swing. External events carry more weight.

Trend, pullback, correction and range

Not every move against the trend breaks it. We use four context labels.

• Trend: price is moving with the bias.
• Pullback: a short move against the bias that has not broken the last key swing.
• Correction: a deeper move against the bias.
• Range: price is moving between swing points with no clear direction.

A pullback inside an uptrend is still an uptrend. A CHOCH is what changes the question from "is this a pullback?" to "has the trend changed?"

How to trade market structure

Trading market structure is a process, not a signal. A common way to use it:

1. Read the higher timeframe first. On the 1d, is the bias bullish, bearish or neutral?
2. Look for alignment on the lower timeframe. If the 1d is bullish, look at the 4h for pullbacks that hold a higher low.
3. Wait for structure to confirm. A bullish BOS after a pullback shows buyers regained control.
4. Place the stop where the idea fails. For a long, that is below the last higher low. Use ATR to add room for normal noise.
5. Size the position from the stop distance. Use the position size calculator so a stop-out costs a fixed percent of your account.

This is one method among many. It does not predict where price goes. It gives you a clear reason to be in a trade and a clear point where that reason is gone.