Breakout

Technical Analysis

A breakout is a decisive move of price beyond an established support, resistance, or pattern boundary, often signalling the start of a new move.

What is a breakout?

A breakout occurs when price moves decisively beyond a previously well-established level — whether that’s a support or resistance line, a trendline, or the boundary of a chart pattern such as a triangle or range. Breakouts are one of the most closely watched events in technical analysis because they can mark the start of a fresh directional move.

Bullish vs. bearish breakouts

A bullish (upside) breakout happens when price closes convincingly above resistance, suggesting buyers have overwhelmed sellers at that level.
A bearish (downside) breakout — sometimes called a breakdown — happens when price closes convincingly below support, suggesting sellers have overwhelmed buyers.

What makes a breakout credible

Not every push beyond a level holds. Traders typically look for signs of a genuine breakout rather than a false breakout (also called a “fakeout”), including:

A strong closing candle beyond the level, not just a brief wick poking through it.
Higher trading volume accompanying the move, suggesting real conviction behind it.
A retest of the broken level from the other side that holds, which is often viewed as extra confirmation (the old resistance becoming new support, or vice versa).

Example

If the Nasdaq 100 index has been capped by resistance at 20,000 for several weeks and then closes at 20,150 on unusually high volume, a breakout trader might view that as confirmation of a genuine breakout and look to enter long, placing a stop-loss back below the old resistance level (now expected to act as support) in case the move fails.

Why it matters

Breakouts often mark the transition from a range or consolidation into a new trend, so many trading strategies are built specifically around identifying and trading them early. The main risk is the false breakout, where price pushes through a level only to reverse back inside the range shortly after — which is why volume, candle strength, and a clear stop-loss plan matter as much as the break itself.

See also support, resistance, and trend.