Price actionInside Bar Breakout
An inside bar is a coil — a bar trapped inside the prior bar's range — and the breakout from it, especially on a strong marubozu, releases pent-up energy in the trend's direction.
Day tradingIntermediate15m - 1h
The idea
An inside bar forms when a candle trades entirely within the previous candle's high and low, meaning the market paused and coiled — buyers and sellers reached a temporary truce inside the prior bar's range. That compression stores energy, and the breakout from it, when price finally trades beyond the inside bar or its larger mother bar, tends to release in a quick directional move. In a trend, an inside bar is a pause that usually resolves in the trend's direction, making the breakout a high-quality continuation entry. A marubozu breakout bar — a full-bodied candle with little or no wick — confirms that one side seized control decisively as price escaped the range. The setup is intermediate because judging context, trend versus chop, separates the real breaks from the false ones. It is essentially a volatility-contraction, volatility-expansion play told through two candles.
The setup
Scan for an inside bar — a smaller candle nested within the prior bar's range — ideally forming within a trend or at a meaningful level rather than in dead, aimless chop. Mark the inside bar's high and low, and the mother bar's high and low, since either can serve as the breakout trigger; the mother-bar break is slower but more reliable, the inside-bar break faster but noisier. Note the prevailing trend, because inside bars resolve with the trend far more often than against it. The tighter the inside bar relative to the mother bar, the greater the compression and the more forceful the potential release. A cluster of multiple inside bars coils even tighter.
Entry
Enter on the breakout — buy a break above the inside bar's high in an uptrend, sell a break below its low in a downtrend — and give extra weight when the breakout candle is a marubozu, whose full body signals strong, one-sided momentum with no hesitation. Using the mother-bar high or low as the trigger instead gives a more conservative, higher-confirmation entry. The opposite side of the range provides a natural, tight stop, which is a key attraction of the setup. Requiring price to actually break the level, rather than anticipating the direction, keeps you from guessing which way the coil resolves. Aligning the break with the trend materially improves the follow-through.
Exit and targets
A clean target is a measured move equal to the mother bar's range projected from the breakout, giving an objective first destination; bank partial profit there. Trail the rest behind a short moving average or the developing swing structure as the expansion runs, since a strong break can travel well beyond the first target. Because the setup is a contraction-expansion play, the move often comes fast right after the break, so manage it promptly. As a day trade, honor a time stop into the close. Always take enough at the first target that the trade is de-risked in case the expansion fizzles.
Risk management
The stop belongs on the opposite side of the inside bar or mother bar, because a break that reverses back into the range has failed and the coil is resolving the other way. Size so that distance equals a small fixed fraction of the account; the tight range of a good inside bar keeps that risk small and the reward-to-risk attractive. The main danger is false breaks in choppy, trendless conditions, so trading inside bars in the direction of a real trend is the primary filter. Do not chase a break that has already extended far from the range, and never widen the stop when price retests the broken level. Cap attempts on a whippy day.
Best timeframes and markets
Inside-bar breakouts are read on the 15-minute to 1-hour charts for intraday trading, where the two-bar compression is frequent and the breaks are tradable; the daily inside bar is a well-known swing variant too. They work across forex, futures, and stocks, since the compression-expansion dynamic is universal, and forex daily inside bars are a classic. Higher timeframes give fewer but cleaner setups. The method needs either a trend to continue or a level to break from, and struggles in low-volatility, directionless chop where breaks fail repeatedly. It is chiefly a day-trading continuation tool.
Common mistakes and variations
The biggest mistake is trading every inside bar regardless of trend or context, which in chop means a stream of false breaks. Variations include using the mother-bar break for higher confirmation, trading inside bars only in the direction of the higher-timeframe trend, or requiring a marubozu or strong-bodied breakout candle to confirm momentum. Some traders fade the failed break — an inside-bar breakout that reverses back through the range often runs to the other side. The related outside-bar and narrow-range NR7 setups play on the same volatility-cycle idea. Each version depends on context and a decisive break.
A worked example
A future is trending up on the 15-minute chart and pauses, printing an inside bar coiled within the prior mother bar between 4480 and 4488. Price then breaks above the inside bar's high with a marubozu candle closing at 4491 — full body, no upper wick, strong momentum. You buy 4491 with a stop at 4479, just below the mother bar's low, risking 12 points. The mother-bar range was about 8 points, but momentum carries the expansion further; you bank half at a measured target near 4499 and trail the rest, exiting at 4519 as the move stalls, blending into roughly a 1.5-to-1 winner released by the coil.