Direct Answer
A Three Outside Up is a three-bar bullish reversal pattern appearing after a downtrend, the mirror image of Three Outside Down. Its first two bars are a Bullish Engulfing pattern: a long bearish candle is followed by a larger bullish candle whose body fully engulfs the prior bar's body.
Key Takeaways
- Three Outside Up is a three-bar bullish reversal pattern that appears after a downtrend, the mirror image of Three Outside Down.
- The first two bars form a Bullish Engulfing pattern: a long bearish candle followed by a larger bullish candle that fully engulfs it.
- The third bar is required, not optional, it must close higher than the second bar's close to complete the pattern.
- Because that confirming close is already built into the pattern, Three Outside Up is considered a more complete signal than a bare Bullish Engulfing pattern on its own.
- Three Outside Up is often confused with a plain Bullish Engulfing pattern, which lacks the confirming third bar this pattern requires.
Three Outside Up Candlestick Pattern: Formation, Meaning, and Signals
A Three Outside Up is a three-bar bullish reversal pattern that appears after a downtrend. It combines a Bullish Engulfing pattern, a long bearish candle followed by a larger bullish candle that fully engulfs it, with a third bar that closes higher than the second bar's close, confirming the reversal within the pattern itself.
What Is a Three Outside Up?
A Three Outside Up is a three-bar bullish reversal pattern appearing after a downtrend, the mirror image of Three Outside Down. Its first two bars are a Bullish Engulfing pattern: a long bearish candle is followed by a larger bullish candle whose body fully engulfs the prior bar's body. That two-bar shape already suggests buyers have overwhelmed sellers, but on its own it carries no confirmation that the move continues.
The third bar is what turns the Bullish Engulfing pattern into a Three Outside Up: it must close higher than the second bar's close. That confirming close is part of the pattern's definition, not a separate step traders add afterward, which is why Three Outside Up is treated as a more complete reversal signal than the two-bar Engulfing pattern alone.
How a Three Outside Up Forms
The pattern forms in a fixed three-bar sequence, always following a downtrend. Bar one is a long bearish candle, continuing the prevailing trend. Bar two is a bullish candle large enough that its body fully engulfs bar one's body, the defining feature of a Bullish Engulfing pattern. Bar three is the confirming bar: it closes above bar two's close, completing the Three Outside Up.
All three bars are required for the pattern to qualify. A sequence that stops after the engulfing candle is a Bullish Engulfing pattern, not a Three Outside Up, the confirming third-bar close is what distinguishes the two.
Three Outside Up Example
The chart below shows a deterministic, illustrative example: a downtrend leading in, a Three Outside Up forming, then two possible continuations, a confirmation (price follows through higher) and a failure/look-alike (price breaks back down instead). Toggle between them to see why the third-bar close matters.
How to Trade a Three Outside Up
A more complete signal than a bare Engulfing pattern
Because confirmation is already built into the pattern's third bar, a Three Outside Up is considered a more complete signal than a bare Bullish Engulfing pattern on its own. A trader watching for a Bullish Engulfing still has to wait and see whether the next bar follows through; with a Three Outside Up, that follow-through has already happened by the time the pattern is identified.
Context still matters
The pattern only forms after a downtrend, so its location is part of its definition, the same three-bar shape appearing in the middle of a sideways range wouldn't be a Three Outside Up in the first place. Traders still weigh the pattern against nearby support levels and the strength of the prior downtrend rather than reacting to the shape in isolation.
Know what the pattern already confirmed
Since the third bar's higher close is part of the definition, traders don't need to wait for a fourth bar the way they would after a bare Bullish Engulfing pattern. What the pattern doesn't confirm is how far the move continues from there, that still depends on what happens after the pattern completes.
Common Three Outside Up Mistakes
- Treating a Bullish Engulfing pattern as equivalent to Three Outside Up, the Engulfing pattern alone lacks the confirming third-bar close that a Three Outside Up requires.
- Stopping the count at two bars, identifying a large bullish candle engulfing a bearish one and calling it a Three Outside Up before a third confirming bar has actually closed.
- Ignoring the downtrend requirement, the same three-bar shape without a prior downtrend isn't a Three Outside Up reversal signal.
- Confusing it with Three Inside Up, a similar-sounding pattern built on a different two-bar base shape; see the comparison below.
Three Outside Up vs. Similar Patterns
| Pattern | Bars | Key difference from Three Outside Up |
|---|---|---|
| Three Outside Up | 3 | Baseline, Bullish Engulfing plus a confirming third bar closing higher |
| Bullish Engulfing | 2 | Just the first two bars, with no confirmation built in |
| Three Inside Up | 3 | Built on a Bullish Harami instead of a Bullish Engulfing as the base two-bar shape |
Limitations of the Three Outside Up Pattern
A Three Outside Up describes the relationship between three bars' opens, closes, and bodies, it does not tell a trader how large the following move will be, whether it will continue at all beyond the confirming bar, or why the reversal happened. It carries no information about volume or order flow behind the moves. Like any candlestick pattern, it works best considered alongside the broader trend and nearby support and resistance levels, not used as a standalone signal.
The Bar That Separates This From an Engulfing
The first two bars are a bullish engulfing pattern, complete and recognisable on their own. What makes this a different pattern is the third bar closing above the second bar close, and that requirement is not optional garnish: it is the evidence that the engulfing candle led somewhere rather than being a single strong session inside a decline. Anyone who trades engulfing patterns and waits a bar is effectively trading this.
Framed that way, the pattern is a formalisation of a discipline rather than a separate discovery, which makes it easy to reason about. The cost is the session you waited; the benefit is the engulfing candles that stalled being filtered out.
The engulfing requirements still apply underneath. Only the real bodies count, so wicks that fall short do not disqualify the second bar, and a body that merely edges past the first is a weak instance regardless of the third bar.
And a downtrend has to precede it. The same three bars inside a range are a decline, a recovery and a continuation, which is a description of ordinary oscillation rather than a reversal.
Three Outside Up FAQs
Is Three Outside Up the same as a Bullish Engulfing pattern?
No. A Bullish Engulfing pattern is only the first two bars, a long bearish candle followed by a larger bullish candle that fully engulfs it. Three Outside Up adds a required third bar that closes higher than the second bar's close, which is what makes it a more complete signal.
How many bars make up a Three Outside Up pattern?
Three. The pattern needs a bearish candle, a larger bullish candle that engulfs it, and a third bar that closes above the second bar's close. Stopping the count at two bars only identifies a Bullish Engulfing pattern, not a Three Outside Up.
Does a Three Outside Up need further confirmation after it completes?
The third bar's higher close is already built into the pattern's definition, which is why Three Outside Up is considered a more complete signal than a bare Bullish Engulfing pattern on its own. Traders still weigh it against the surrounding trend and nearby support and resistance rather than acting on the shape alone.
What's the difference between Three Outside Up and Three Inside Up?
Three Outside Up is built on a Bullish Engulfing pattern as its first two bars. Three Inside Up is built on a Bullish Harami instead, a different two-bar shape, before the same kind of third-bar confirmation is added.
Does a Three Outside Up work the same way on every timeframe?
The three-bar structure means the same thing on any timeframe, but its significance scales with the timeframe: a daily Three Outside Up after an extended downtrend carries more weight than the same shape on a 1-minute chart in the middle of a range.
Which prices does the engulfing test use inside this pattern?
The opens and closes, not the highs and lows. The second candle body must cover the first candle body, and the shadows are ignored. That means a second bar can engulf the first body while trading within the first bar range overall. Implementations that use the full ranges instead are testing an outside bar rather than an engulfing candle.
Does the third candle have to be bullish?
It has to close higher than the second candle, which in practice means it is usually bullish, and a bar that opened above the previous close and finished below its own open could satisfy a lenient version. The condition that matters is the close, since the pattern is about confirmation continuing rather than about a third strong session.
How much data does a scanner need to detect this pattern?
Three bars for the pattern itself plus whatever lookback the trend criterion requires, which is usually the larger of the two. That is worth noting because the trend condition is the part most often omitted, and omitting it makes the scan cheap and the results largely meaningless. The three-bar shape without a preceding decline is not the pattern.
Does the pattern lose meaning if the first candle is very small?
Substantially. Engulfing a tiny body is trivial and can be achieved by an ordinary bar, so the pattern fires without the second session having demonstrated anything. Requiring a minimum size on the first candle relative to recent bars is a standard filter, and it removes a large share of what an unfiltered scan returns.
References
- CMT Association: Technical Analysis Body of Knowledge and Research
- CFA Institute Research and Policy Center: Investment Research
- Steve Nison, Japanese Candlestick Charting Techniques (1991), the book credited with popularizing Japanese candlestick analysis in Western markets.
- SEC Investor.gov: Introduction to Investing