Candlestick patternsThree Inside Down
A bearish harami with a confirming third down-candle — a validated top reversal.
Works best in trending marketsEngine-computed on a fixed sample series
What Three Inside Down is
Three Inside Down is a three-candle bearish reversal pattern that appears at the top of an uptrend and signals that the advance is likely turning down. It is essentially a bearish harami with a built-in confirmation candle. The first two candles form the harami — a long up-candle followed by a small down-candle whose body sits entirely inside the first — which flags that the uptrend has stalled. The third candle then provides the proof the raw harami lacks, closing below the low of the second candle to show that sellers have followed through and taken control. Baking the confirmation into the pattern makes it more reliable than a bare bearish harami, which only hints at a stall without proving a reversal. It answers the question: the uptrend paused, but did sellers actually step in, or was that just a breather?
How the pattern forms
The pattern unfolds over three candles at the end of an uptrend. The first is a long up-candle in the direction of the trend, showing buyers still in command. The second is a small down-candle whose entire body is contained within the body of the first — this is the harami, or inside candle, and it represents a sudden loss of upward momentum as the range narrows and buyers hesitate. The third candle is a down-candle that closes below the low of the second candle, confirming that the hesitation has resolved into selling. The contrast between the confident first candle and the shrinking second is the stall; the decisive third candle breaking lower is the reversal being confirmed. The progression from strength to indecision to downside follow-through is the psychological story the three candles tell.
Reading it, step by step
Begin with context: the pattern must follow a genuine uptrend to be a valid top reversal. Identify the harami first — a long up-candle then a small down-candle nested inside it — which is your alert that the trend has lost steam. The critical read is the third candle: it must close below the second candle's low to confirm sellers have taken over, and the further below it closes, the stronger the signal. A third candle that only marginally undercuts the harami low signals thin momentum and a weaker reversal, so weigh the quality of that close carefully. Because the confirmation is part of the pattern, you do not need to wait for an additional candle before acting, though checking that the third close is convincing rather than marginal is prudent. The whole read is stall, then confirmed downside follow-through.
Best timeframes and context
Like other candlestick reversals, Three Inside Down is most dependable on daily and weekly charts, where each candle carries real commitment and the signal is less prone to noise than on intraday timeframes. There are no numeric parameters, only judgement about the strength of the harami containment and the conviction of the third candle's close. The pattern is stronger when it forms at a clear top — into resistance, after an extended advance, or at a prior swing high — where a reversal is plausible on other grounds. Volume that shrinks on the harami candle and expands on the confirming third candle reinforces the read, showing buyers thinning out and sellers arriving. It is weaker in the middle of a range or when the third candle barely clears the harami low. Location within the larger structure and the quality of the confirmation matter most.
When and where to use it
Use Three Inside Down as a bearish reversal signal at the top of an uptrend in liquid markets on daily charts, both to exit longs and to time short entries. It is most valuable when the pattern coincides with overhead resistance or other evidence that the uptrend is exhausted. Its built-in confirmation makes it a good choice for traders who want a candlestick reversal that has already been partly validated rather than a single-candle guess. Avoid it where there is no real prior uptrend, since a top reversal needs an advance to reverse, and be cautious when the third candle is weak, which undercuts the confirmation the pattern is prized for. As always with candlestick signals, it is a short-term read best used within a broader analytical framework rather than as a standalone system.
Strategies that use it
The primary strategy enters short on or just after the close of the confirming third candle, placing the stop above the high of the first candle — the top of the pattern — and targeting the nearest support below. Because confirmation is embedded, you can act without waiting for a further candle. A second, more conservative strategy waits for a lower open or a break below the third candle's low before entering, requiring extra proof of follow-through in exchange for a slightly later entry. A third approach uses the pattern purely as an exit and profit-protection signal for existing longs, treating the confirmed stall as a reason to bank gains even if you do not short. In each version, the first candle's high is the logical invalidation level, and a decisive third-candle close improves the odds the reversal holds.
Combining it with other indicators
The pattern gains reliability when independent tools agree that a top is forming. Resistance from a prior high, a round number, or a declining moving average gives the reversal a logical location and makes it far more trustworthy than one in open space. A momentum oscillator such as RSI showing bearish divergence into the high, or rolling over from overbought as the harami forms, corroborates the loss of upside momentum. Volume that contracts on the harami and expands on the confirming candle supports the shift from buyers to sellers. A break of a short-term uptrend line coinciding with the third candle adds structural confirmation. The candlestick pattern provides the precise timing and the stall-then-reversal read, while resistance, momentum, and volume provide the independent evidence that the uptrend is genuinely turning.
Where it fails
The pattern still requires a real prior uptrend, and taken in the middle of a range or after a weak advance it reverses little of consequence. Its most common quality failure is a third candle that only marginally closes below the harami low, which signals thin momentum and often precedes a resumption of the uptrend rather than a durable reversal — checking the strength of that close is the key defence. A harami whose second candle is not genuinely contained within the first weakens the setup. On news-driven or thin instruments a spike can override the signal. And because it is a short-term candlestick read, it can be overwhelmed by a strong larger trend, so shorting a Three Inside Down against a powerful uptrend is risky. Requiring a genuine top, a convincing third close, and confirmation from resistance or momentum keeps the pattern honest.
A worked example
Consider a stock in an uptrend that stalls near resistance at 75. The first candle is a long up-candle running from 70 to 75, buyers clearly in control. The second is a small down-candle that opens at 74 and closes at 71, its whole body nested inside the first candle's range — a bearish harami flagging that momentum has stalled. The third candle opens at 71 and closes at 69.50, decisively below the harami low of 71, confirming sellers have taken over, and volume expands on that candle. You short on the third close near 69.50 with a stop at 75.20, just above the first candle's high, targeting the prior support near 65. Price follows through, sliding to 65.20 over the next week, and you cover into support for a reward of roughly two to one on your risk — the confirmed reversal having played out from a well-defined top.