Horizontal Levels and Resistance Levels Explained

A horizontal level is a specific price point, marked as a horizontal line on a chart, where price has previously shown a tendency to react — either stopping a decline (support) or stopping an advance (resistance). These are generally identified by looking for prior price points where a clear reversal or pause occurred.

Traders generally identify horizontal levels by looking at a chart's history for points where price reversed direction on more than one occasion, or where a particularly sharp reversal occurred, suggesting a meaningful shift in the balance between buyers and sellers at that specific price point.

Horizontal levels are generally considered the most basic and widely applicable form of support and resistance, since they don't require any additional indicators or calculations — simply observing where price has previously reacted. This makes them a natural starting point before exploring more advanced concepts like trend lines and price channels, covered in a later unit of this group.