TradaZen
In 20 seconds
- Shape
- Two candles of opposite colors: the body of the second covers the entire body of the first.
- Where
- Bullish after a decline, bearish after a rise.
- What it says
- In one period, one side erases what the other had done. Over five years of Bitcoin, that wasn't enough to beat chance.
- Confirmation
- The second candle has closed. Before that, the pattern doesn't exist.
- Invalidation
- Price moves back beyond the extreme of the two candles.
The engulfing is a two-candle pattern. The second candle, of the opposite color, is large enough that its body fully covers the body of the first. At the bottom of a decline, a green candle engulfing a red one forms a bullish engulfing. At the top of a rise, a red candle engulfing a green one forms a bearish engulfing.
The picture is striking: in a single period, one side erases everything the other had done. That's why it's often presented as a reversal signal. The numbers below tell a different story.
This guide describes a training method, not investment advice. Trading carries a high risk of capital loss.
Spotting it
- The context: a decline on the left, a rise on the right.
- The first candle, in the direction of the trend.
- The second, of the opposite color. Its body fully covers the body of the first: the dotted lines mark both edges of the engulfed body.
Three things to check:
- The prior trend: a bullish engulfing in the middle of a rise means nothing, it's just a big green candle.
- Bodies, not wicks: the body of the second candle must cover the body of the first. If only the wicks extend beyond, it isn't an engulfing.
- The close of the second candle: until it has finished, the pattern doesn't exist.
In crypto, the market never closes: a candle almost always opens at the previous candle's closing price. Both bodies start from the same price, so the second candle only needs to go past the first one's open. In stocks, an opening gap is possible, and some textbooks require it.
Engulfing, harami, false engulfing
- The engulfing: the green body goes past the red candle's open.
- The harami: the opposite, a small body sitting inside the large one. The move is slowing, nobody has taken back control.
- The false engulfing: the wick extends past, not the body. Price rose during the period, then fell back. It doesn't count.
What 5 years of Bitcoin show
I identified every engulfing over five years of Bitcoin and looked at where price was six and twelve candles later. The baseline: all candles that follow a candle caught in the same trend.
| After… | Cases | In the expected direction at 6 candles | In the expected direction at 12 candles |
|---|---|---|---|
| a bullish engulfing (higher price) | 474 | 49.6% | 49.6% |
| any candle following a down candle (baseline) | 4,499 | 53.4% | 52.7% |
| a bearish engulfing (lower price) | 545 | 45.3% | 43.7% |
| any candle following an up candle (baseline) | 4,798 | 51.3% | 48.8% |
Method: BTC/USDT, 4-hour candles, public data from Binance, January 1, 2021 to December 31, 2025, for a total of 10,956 candles. Decline: the first candle closes below the average of the previous 20 closes and below the close from 10 candles earlier; rise: the opposite. Engulfing: the second candle, of the opposite color, has a larger body that fully covers the body of the first. Measured from the close of the second candle. Past data: it is no guide to the future.
The bullish engulfing doesn't beat the baseline. Price was higher six candles later in 49.6% of cases, versus 53.4% for any candle after a decline. It doesn't do better than a plain green candle after a decline either (50.7%). Engulfing the previous candle adds nothing measurable.
The bearish engulfing does worse than the baseline, and the gap exceeds the margin of chance. After a bearish engulfing in the middle of a rise, price was higher six candles later in more than half of cases: the rise continued more often than it reversed.
One caveat: this is a single market, a single timeframe, and a period in which Bitcoin had long rises. On another asset, the result could differ. On this data, at any rate, the engulfing is nothing like a rule.
Trading it with method
- Check the context. A real trend beforehand, and ideally a level already touched.
- Wait for the second candle to close. Before that, it isn't an engulfing.
- Compare the bodies, not the wicks.
- Place your stop beyond the pattern's extreme: below the low of the two candles for a bullish engulfing, above the high for a bearish one.
- Calculate your ratio. A large engulfing candle pushes the stop further away. If the target isn't worth at least twice your risk, pass. The guide on the risk/reward ratio walks through the calculation.
- Log the trade in your journal.
Because the stop is far away, position size must come down to keep the same risk. The 1% rule shows how to calculate it.
Common mistakes
- Entering mid-candle, before it closes, because it "is engulfing."
- Taking every big candle for an engulfing, without looking at the body before it.
- Keeping the same size when the stop is twice as far: your risk doubles without you deciding it.
- Playing the bearish engulfing against a strong rise: on Bitcoin, that's the case where the numbers are least favorable.
Practice on real charts
Spotting a pattern on a finished chart is easy. The hard part is deciding without knowing what comes next. In TradaZen, each scenario is a real past chart, stopped at a real date. You choose Long, Short, or "I stay out," then the market reveals what it did, on a simulated balance.
To start with the basics, do a few trading exercises, or reread the guide on the doji, the candle of hesitation. The morning star is the engulfing's three-candle cousin.
Frequently asked questions
What is a bullish engulfing?
It's a two-candle pattern at the bottom of a decline: a red candle, then a green candle whose body fully covers the red one's body. It shows that buyers erased, in one period, what sellers had done in the previous one.
What's the difference between an engulfing and a harami?
They are opposite patterns. In the engulfing, the second candle covers the body of the first. In the harami, the second candle is small and its body fits inside the body of the first.
Is the bullish engulfing reliable?
Not as a signal on its own. Over five years of Bitcoin on 4-hour candles, price was higher six candles after a bullish engulfing in 49.6% of cases, slightly less than after any candle in the same situation. It's a clue to read alongside the context.
Does there need to be a gap between the two candles?
In markets that close overnight, such as stocks, some textbooks require the second candle to open beyond the first one's close. In crypto, which trades around the clock, that gap almost never exists: you only compare the bodies.
Mehdi Azizi created TradaZen and published it on the App Store through the Devoria studio. The app's scenarios are real past charts, never made-up data.
TradaZen is a training tool: you play on past market data with a simulated balance. It is not a broker and not investment advice. Real trading carries a risk of capital loss.
