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Part 3

Pin Bars, Inside Bars and Outside Bars

The price-action vocabulary most modern traders actually use. No Japanese names, no mystique — just three measurable relationships between consecutive bars.

Intermediate8 min readBeginner → IntermediateLesson 11 / 12

Price action, stripped down

Much of what gets taught as candlestick patterns has a simpler modern equivalent. Instead of memorising named shapes, you can describe almost any bar with three relationships:

  • Pin bar — a long wick on one side and a small body at the other end. Price was pushed one way and rejected. It is the same geometry as a hammer or a shooting star, with the location requirement made explicit rather than baked into the name.
  • Inside bar — the bar's entire high-to-low range sits inside the previous bar's range. Compression: the market went quiet.
  • Outside bar — the bar's range completely contains the previous bar's range, in both directions. Expansion: volatility increased and one side won.
Pin bar — rejectionInside bar — compressionOutside bar — expansion
Three relationships, no names to memorise: one side rejected, range contracted, range expanded.

Why this framing is more useful than pattern names

Because every one of these is defined by a measurement you can check mechanically, and each one maps directly onto a decision:

  • Pin bar tells you a level was defended. Trade it in the direction of the rejection, with a stop beyond the wick — the wick's extreme is a natural invalidation point.
  • Inside bar tells you the market is coiling. Breakouts from compression are often sharp, so the trade is usually a break of the mother bar's high or low, not a guess at direction.
  • Outside bar tells you volatility expanded and one side won. It frequently marks the start of a move — or, at the end of one, exhaustion. Location decides which.

The same three rules apply

None of these escapes the context requirement. A pin bar at a level you marked in advance is a trade; a pin bar in the middle of a range is decoration. An inside bar after a strong trend is a continuation setup; an inside bar in chop is just a quiet bar. The vocabulary changed; the discipline did not.

How to check this yourself

Pick one session and label every bar as pin, inside, outside, or none — most will be "none", which is itself worth noticing. Then mark where the market actually moved. You will usually find the moves started from inside-bar breaks or outside bars, and that most pin bars did nothing. That ratio is the honest base rate, and knowing it is what separates a plan from a hope.

What you just did

Lesson 11 of 12 in Candlestick Charting for Beginners. When you have run the examples or read the section, tick it off and move to the next lesson.