Support, Resistance and Market Structure

Support and resistance are the foundation of reading any chart. Once you can mark the levels price keeps reacting to, the market stops looking random and starts showing you where the decisions happen.

What they are

Support is a price level where buyers have repeatedly stepped in and stopped price falling further. Resistance is a level where sellers have repeatedly capped a rise. Think of them as a floor and a ceiling: price tends to bounce between them until something decisive breaks the pattern. They are best treated as zones, not exact lines.

Why price respects them

These levels work largely because everyone can see them. When price approaches an obvious prior high or low, traders cluster their orders there, buyers defending support, sellers leaning on resistance, profit-takers and stop orders waiting. That concentration of activity is what makes the level react. The level matters partly because the crowd is watching it.

The flip

The most useful idea here is role reversal. When price breaks through resistance, that old ceiling often becomes the new floor, and vice versa. A level that capped price for weeks, once broken and retested from the other side, frequently becomes support. Watching for these flips is one of the cleanest ways to find low-risk entries, and it is the logic behind the breakout retest.

From levels to structure

String levels together and you get market structure: the pattern of higher highs and higher lows in an uptrend, or lower highs and lower lows in a downtrend. Reading structure tells you the trend's direction and health, which is the context every trade should respect. Mark your levels, watch how price behaves at them, and the chart begins to make sense.

Key takeaways

• Support is a floor where buyers step in; resistance is a ceiling where sellers cap price.
• They work because the whole market watches and trades around them.
• Broken levels flip role, and chains of levels form the market structure you trade within.