Intermediate · 10 min read

Inside bars, outside bars and range definitions

Distinguish range containment from body engulfing.

Complete lesson · editorial review pending

Prerequisite: OHLC and candlestick anatomy

On a small screen, scroll the figure sideways or open it full size.

Inside bars, outside bars and range definitions: Compare complete high–low ranges to the parent 100–110, not candle body colours. Bodies here are illustrative.
Hypothetical example; not a live chart or forecast. Open full-size figure ↗

Read the figure

Compare complete high–low ranges to the parent 100–110, not candle body colours. Bodies here are illustrative.

Learning objective

Distinguish range containment from body engulfing.

An inside bar has a high below the previous high and a low above the previous low under a strict definition. An outside bar exceeds both extremes. These definitions concern the full high–low range, not only candle bodies.

Containment describes compression; it does not choose a breakout direction. Write whether equal highs count and which parent candle governs a sequence of inside bars. Without this detail two studies can label the same chart differently.

A break of one boundary can reverse through the other boundary. Evaluate spreads and stop-order execution before turning a visual setup into a rule. An outside bar also does not reveal which extreme occurred first from OHLC alone.

Worked example

A parent range 100–110 contains 102–108. A following 99–111 bar is outside the parent. Neither observation alone specifies a profitable trade.

Common mistakes

Avoid mixing body-based engulfing and range-based outside-bar tests.

Practice

Mark five inside and five outside bars, including equality cases.

Check your understanding: What defines a strict inside bar?

Sources & further reading

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Editorial review: 15 October 2026 · AI-assisted technical review; independent specialist review pending.

Translation available · editorial review pending