Trade Inside Bar Breakouts with Clear Rules

This guide explains how to spot an inside bar, the rules for trading the breakout, a worked example on Nifty, the filters that improve it and how to automate and test it.

At a glance

How to spot an inside bar

Two inside bars in a row, both within the same mother bar, show a tighter coil. The inside bar is the same shape as the harami in candlestick patterns, but traders read it for the breakout rather than for a reversal.

The rules

1. Spot the pattern at the close of the inside bar.
2. Place two stop orders: buy above the mother bar's high and sell below the mother bar's low. When one fills, cancel the other.
3. Stop: for a long, below the inside bar's low. A wider, safer stop is below the mother bar's low.
4. Target: 2 times the risk, or take half at 1.5 times and trail the rest.
5. Cancel the orders if neither side breaks within a set number of candles, such as three.

Many traders only take the breakout in the direction of the trend: longs above the 50-period average, shorts below it.

A worked example

On a daily Nifty futures chart in an uptrend, the mother bar has a high of 25,180 and a low of 24,960. The next day's candle has a high of 25,120 and a low of 25,010: an inside bar.

• Buy stop: 25,185, above the mother bar's high
• Sell stop: 24,955, below its low (only if you trade both sides)
• Long stop: 25,005, below the inside bar's low, a risk of 180 points
• Target: 2 times the risk, 25,185 + 360 = 25,545

One lot of 65 risks ₹11,700 for a target of ₹23,400. Using the mother bar's low as the stop raises the risk to 230 points (₹14,950) with fewer early stop-outs. These numbers illustrate the rules, not a result.

Filters that improve the setup

• Trend direction. Breakouts in the direction of the trend hold more often than those against it.
• Location. An inside bar just below resistance or just above support marks a decision point. See support and resistance strategy.
• Range size. An inside bar much narrower than usual (an NR4 or NR7 day, the narrowest of the last 4 or 7) shows a tighter coil.
• Volume. A breakout on rising volume is more convincing. See volume breakouts.

When the strategy works, and when it does not

Works best when:

• Volatility has fallen after a strong move, and a new move is building.
• The breakout comes with the trend and with a catalyst, such as a global cue or a result.

Struggles when:

• The market is choppy and both sides break in turn. A false break followed by a reversal is the most common loss.
• The mother bar is very large. The stop is then wide and the target far.
• Breakouts happen on a gap at the open, which fills the stop order far from the trigger.

Intraday inside bars

On 15-minute charts, inside bars are frequent and less reliable. The first candle of the day is often large, so an inside bar on the second candle can be traded as a small opening range breakout. Keep a time exit, such as 15:15.

Automating an inside bar strategy

In QuantPower's strategy builder:

1. Condition: the last candle's high is below the previous high and its low above the previous low.
2. Orders: a buy stop above the mother bar's high and a sell stop below its low, one cancelling the other.
3. Stop and target as above, with a cancel rule after three candles.
4. An MTM stop loss for the day.

Test it in paper trading before going live.

Backtesting an inside bar strategy

• Test both stop placements, inside bar and mother bar.
• Compare trend-filtered and unfiltered versions.
• Count the false breaks: trades stopped out within one or two candles.
• Include slippage on stop orders, which fill at or beyond the trigger.

See how to backtest trading strategies.

Frequently asked questions

Sources

• Murphy, J. J. (1999). Technical Analysis of the Financial Markets. New York Institute of Finance
• Crabel, T. (1990). Day Trading with Short Term Price Patterns and Opening Range Breakout. Traders Press