Reading market structure

Price action trading means making decisions from the chart itself rather than from indicators calculated on it. The foundation is market structure: the sequence of highs and lows that shows whether buyers or sellers have been in control. Before you think about entries, you need to be able to describe what the market is doing in plain words.

Swing points

A swing high is a peak where price turned lower; a swing low is a trough where price turned higher. A common working definition is a candle whose high is higher than the highs of the two candles on either side of it (and the mirror image for a swing low). Some traders use one candle either side, others three. The exact rule matters less than using the same rule every time, so that your reading of the chart is consistent.

Swing points depend on the timeframe. A clean swing low on the daily chart may contain several smaller swings on the 1-hour chart. Decide which timeframe defines your structure and treat smaller swings as detail.

Trends and ranges

Once you have marked the swings, the pattern usually falls into one of three states:

• Uptrend: higher highs and higher lows. Each pullback stops above the previous swing low.
• Downtrend: lower highs and lower lows. Each bounce fails below the previous swing high.
• Range: swings repeatedly stall near the same upper and lower areas, with no clear sequence of higher or lower points.

Markets spend a large share of their time in ranges, and transitions between states are often messy. If you cannot describe the structure clearly, that is itself useful information: it may be a chart to leave alone.

Worked example: mapping swings

The table below uses illustrative EUR/USD prices on a 4-hour chart. These are example numbers chosen to show the logic, not real or current prices.

Up to High D the structure is a clear uptrend. High F failing 20 pips below High D (1.0950 minus 1.0930 = 0.0020, or 20 pips) is the first sign of weakening, but it does not end the uptrend on its own. The level that matters now is Low E at 1.0880, the most recent higher low.

Break of structure

A break of structure happens when price moves beyond the swing point that was holding the current pattern together. In an uptrend, that is a decisive move below the most recent higher low; in a downtrend, a decisive move above the most recent lower high.

In the example, a 4-hour close below 1.0880 would mean the sequence of higher lows has been broken. Combined with the lower high at F, the chart would then show a lower high followed by a lower low, which is the start of a possible downtrend. It is a change in evidence, not a certainty: many breaks of structure are followed by a recovery back into the old pattern.

Some practical points:

• Many traders require a candle close beyond the level, not just a brief poke through, to reduce false signals.
• A break on a small timeframe inside a strong higher-timeframe trend often turns out to be a pullback rather than a reversal.
• After a break, the market frequently moves into a range before a new trend develops.

Common mistakes

• Marking every wiggle. Too many swing points make every move look like a break of structure.
• Changing the rules mid-chart. If you move your definition of a swing to fit what you want to see, the analysis stops being objective.
• Ignoring context. A range on the 1-hour chart might sit in the middle of a daily uptrend. Check one timeframe higher before drawing conclusions.

Key takeaways

• Market structure is the sequence of swing highs and lows; define swings with one consistent rule.
• Uptrends make higher highs and higher lows, downtrends make lower highs and lower lows, and ranges make neither.
• The most recent higher low (in an uptrend) or lower high (in a downtrend) is the level that defines a break of structure.
• A break of structure changes the evidence but does not confirm a reversal; many traders wait for a candle close.
• If you cannot describe the structure in a sentence, consider staying out.