What it means
A candlestick displays an interval's opening, closing, high and low prices; its real body runs between open and close, while thin wicks show the interval's extremes. To see a harami, compare the bodies of two consecutive intervals on the same price scale.
First find a downward move, where the first candle should be relatively long and down, with its close below its open. A smaller second body nested inside it suggests that sellers no longer control as wide a price range.
The second candle need not by itself erase the prior decline, and a small up candle can be part of the picture, with some descriptions allowing a near-flat doji. Chart definitions vary on whether the second body must rise or simply be contained, so use one rule consistently.
Context matters more than a colourful icon. If the candles occur in sideways trading, there is no clear falling trend to reverse, whereas a decline into a price zone watched by other traders may carry a different interpretation from a random two-day pause.
Confirmation means looking for subsequent price behaviour that supports the reversal idea, such as a later close above the pattern's upper area, and it is a separate condition chosen by a trader, not a guaranteed feature of the two-candle shape; waiting can reduce false signals while making an entry later. A peer-reviewed 2022 study tested bullish harami among ten candlestick patterns on constituents of China's SSE50 over 2000-2018.
Some short-horizon average returns appeared positive in that market under certain conditions. The paper also examined trend screens, transaction costs and out-of-sample behaviour; those results are not a promise in another market or period.
The chart pattern is a signal hypothesis. A trader should specify an entry rule, exit, maximum loss and position size before acting.
Otherwise a memorable formation can turn into hindsight: every later rally looks like a successful harami while failed examples are forgotten. Do not confuse the bullish harami with a bullish engulfing pattern: harami has the second body inside the first, while engulfing has the later body surrounding the earlier one.
Both may be discussed as possible reversals, but their shapes are opposite. The use for a reader is to recognise a possible change in momentum and frame a question, not to buy automatically, so ask what price action would support the hypothesis and what would prove it wrong, and remember that the chart alone cannot answer whether the underlying asset is worth owning.
In practice
Real-world examples.
Example
A share falls for several sessions. Monday opens at 50 and closes at 46; Tuesday opens at 47 and closes at 48. Tuesday's real body lies within Monday's, forming an illustrative bullish harami if the wider chart establishes a decline.
Example
The second candle has a long upper wick outside the first body's range, but its open and close remain nested. A body-based screen may count the shape; another methodology may apply stricter full-range rules.
Example
The same two candles occur after a month of sideways prices. A trader does not label them a reliable bearish-to-bullish reversal without the preceding downtrend.
Formula
Calculation
One strict screening rule is: first close < first open; second body height < first body height; second open and close both lie between the first open and close. For a first body from 50 to 46, a second body from 47 to 48 is nested. Check for a preceding decline separately; no arithmetic formula predicts the next return.Case study
Seen in the real world.
Fictional example: Mariam saw a bullish harami after shares in a retailer had dropped for two weeks. She initially wanted to buy on the second candle alone. She defined a higher closing-price confirmation, a loss limit and a maximum stake before deciding whether to act.
The next day's price fell instead, so her rule produced no trade. She logged the failed setup alongside successful ones. The pattern had helped her ask a precise question, but refusing an unconfirmed signal protected her from treating a possible reversal as a fact.
Watch out
Common mistakes.
- Calling any small candle inside a large one bullish without first checking for a preceding downtrend.
- Confusing body containment with wick containment, or silently changing the screening rule after seeing the outcome.
- Assuming a chart pattern guarantees a profitable trade before accounting for failures, spreads and gaps.
Questions
People also ask.
Does a bullish harami guarantee a reversal?
No. It is a possible change in selling pressure; later price action may confirm it or the decline may resume.
Must the second candle be green?
Definitions differ. The key shared feature is its small body inside the preceding long down body's range, after a decline. State your exact rule before testing.
How does it differ from bullish engulfing?
A harami's second real body is contained by the first. In an engulfing pattern, the later real body surrounds the prior one.
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