Inside Bar and Outside Bar: How to Trade the Range
An inside bar is a candle whose entire high to low range fits inside the previous candle’s range. An outside bar covers the previous candle’s range completely, taking out both its high and its low. One is compression, the other expansion, and neither is directional on its own.
The previous candle, the one being contained or engulfed, is called the mother bar. Almost everything useful here comes from where price closes relative to the mother bar and which side of it breaks first.
Exact Formation Rules
Inside Bar
- High is lower than the mother bar’s high.
- Low is higher than the mother bar’s low.
- Both conditions must hold. Matching only one extreme does not count.
- Open and close positions do not matter, nor does colour.
- Two or three in sequence inside the same mother bar are called nested inside bars.
Outside Bar
- High is above the mother bar’s high and low is below the mother bar’s low.
- The close location inside its own range is the key variable. A close in the top quarter is bullish, bottom quarter bearish, middle is noise.
- One that also closes beyond the mother bar’s body is an engulfing candle, a stronger read.
The Psychology Behind It
Inside bars are the market taking a breath. Volatility contracts, participants stop committing, the range narrows. Compression usually resolves into expansion, which is why traders watch the mother bar’s edges rather than the inside bar itself.
Outside bars are the opposite event. Both sides of the prior range were taken out in one session, so stops on both sides fired. Whoever controlled the close starts the next day with an advantage.
Comparing the Two
| Feature | Inside bar | Outside bar |
|---|---|---|
| Volatility | Contracting | Expanding |
| Usual role | Continuation more often than reversal | Reversal or acceleration |
| Trigger | Break of the mother bar’s high or low | Break beyond the outside bar’s own close side |
| Stop reference | Opposite side of the mother bar | Opposite extreme of the outside bar |
| Main failure mode | False break, then reversal | Mid-range close, no follow-through |
An Illustrative Indian Example
Consider a liquid large cap near Rs 3,400 after a steady advance. Levels here are illustrative.
The mother bar runs from Rs 3,388 to Rs 3,462, a Rs 74 range against a 14-day average true range of Rs 70. The next session trades only Rs 3,404 to Rs 3,448 and closes at Rs 3,430. That is a clean inside bar, about 60 percent of the mother bar’s range.
Volume on the inside bar is about 0.6 times the 20-day average, which fits genuine compression. Heavy volume instead would suggest two-way fighting rather than a pause.
Confirmation Required
The inside bar is not a trade by itself. Confirmation for the upside read is a close above the mother bar high of Rs 3,462, on volume at or above the 20-day average. A move that pokes Rs 3,470 intraday and closes at Rs 3,441 is a failed break, and failed breaks from inside bars are common.
Invalidation Level
For a long read after an upside break, invalidation is a close back below Rs 3,388, the mother bar low. A tighter option is the inside bar’s low of Rs 3,404, which risks less but gets hit more often. Pick one before you enter.
Where They Fail
- On 5-minute and 15-minute charts, inside bars appear constantly and carry almost no edge.
- In illiquid mid and small caps, a single large order can create both the wide mother bar and the quiet inside bar.
- Inside bars inside a broad sideways range simply mean nothing is happening.
- Outside bars on results day are usually just repricing, not a structural reversal.
- An outside bar with a close near the middle of its range is noise, however dramatic the candle looks.
The Misconception Worth Fixing
Many traders label an inside bar bullish or bearish based on its colour. Colour tells you nothing here. An inside bar is a statement about volatility, and its direction is decided by which side of the mother bar breaks.
Nested inside bars are also misread as a stronger directional signal. More nesting means a tighter coil and a bigger likely expansion, but says nothing about direction. Plan both sides.
Frequently Asked Questions
Is an inside bar the same as a harami?
No. An inside bar nests the entire high to low range. A harami only nests the real bodies, so a harami’s wicks can exceed the previous candle’s extremes.
Which timeframe suits inside bar setups best?
Daily and weekly charts on liquid counters. A weekly inside bar after a strong trend leg represents a full week of compression, which is much harder to dismiss than a single quiet hour.
How do I handle an outside bar that closes near its midpoint?
Treat it as unresolved and wait. Both sides of the prior range were taken and neither held, so the next session’s close relative to that bar’s extremes is what you need.
Do these patterns work on Nifty 50 and Bank Nifty charts?
They work on index charts, and index candles cannot be distorted by one order. Bank Nifty is more volatile, so scale stop distance to its average true range rather than fixed point values.
Key Takeaways
- Inside bar means both extremes fall within the mother bar. Outside bar means both exceed it.
- Neither candle is directional. The break of the mother bar decides direction.
- Confirmation is a close beyond the mother bar edge on average or better volume.
- Invalidation sits at the opposite side of the mother bar, or the inside bar low for a tighter stop.
- An outside bar closing mid-range is noise, and lower timeframes produce mostly false signals.
