Three Inside Up — Bullish Harami Confirmed in Three Candles

A plain bullish harami is, statistically, a coin flip — 53% success in Bulkowski's tests. Add just one confirming candle, though, and the success rate jumps to 65%, the performance rank leaps to 20th out of 103 patterns, and suddenly a barely-noticeable signal turns into a setup worth knowing. That's Three Inside Up. But the data also hides a surprise: the single best measured move after this "bullish" pattern was... a 7% decline. Let's take it apart.

What the Pattern Looks Like

Three Inside Up is a three-candle bullish reversal pattern — in practice a bullish harami plus a confirming candle, exactly as Morris, the pattern's creator, defined it. The conditions:

• Trend before the pattern: downtrend. Without a preceding decline there's nothing to reverse — three candles inside a consolidation isn't this pattern.
• Candle 1: large and bearish (black). Supply closes out the down move with force.
• Candle 2: small and bullish (white), its body fully contained inside candle 1's body. This is the classic harami — the inside candle. The tops or bottoms of the two bodies may line up, but not both at once.
• Candle 3: white, closing above candle 2's close. This is the confirmation the harami alone doesn't have.

The story behind the pattern: the market falls until supply suddenly loses momentum (a small inside candle — indecision), and the next day demand takes over and closes the deal with a higher close. Three candles tell the whole reversal story: supply dominance → hesitation → demand takeover.

On crypto, the pattern needs no adaptation — there's no gap requirement, so a 24/7 market doesn't break anything here. Just stick to the definition: the small candle must be genuinely inside (body inside body), and the third candle must close higher. Three green candles after a decline isn't enough on its own.

What the Numbers Show

Results from Bulkowski's tests (~4.7 million daily candles, US stocks):

• Bullish reversal: 65% of cases. The author of the study himself calls this a decent result — clearly above the random 50%, though far from certain. For comparison: a bullish harami without confirmation scores 53%.
• Overall performance rank: 20/103. A high position — the move following a breakout from this pattern ranks among the better ones in the catalog.
• Frequency: 31/103. The pattern shows up often enough that you'll find it without a magnifying glass — a practical tool, not a curiosity.
• Measure-rule target reached best in 60% of cases (bull market, upward breakout). In other words, in 4 out of 10 cases price doesn't even deliver the pattern's height.

And now the promised surprise. The best average 10-day move after this pattern is -7.00% — a decline, recorded in a bear market after a downside breakout, ranking 9th for 10-day performance. In other words: the pattern showed its greatest measured strength precisely when it failed as a bullish signal — price closed below the pattern's low during an ongoing bear market and kept heading south. This doesn't invalidate the bullish character of the pattern (the 65% reversal rate still stands), but it says something important: a broken Three Inside Up in a bear market is a legitimate short signal, not just a "failed long."

The usual honest caveat: this measurement covers US stocks on the daily timeframe. Crypto has a different volatility regime, trades 24/7, and has a different participant structure — we're carrying over the pattern's logic, not its percentages.

How to Trade It

Scenario 1 — return to an uptrend (the best setup per the data). Bulkowski points directly to the optimal context: an overarching uptrend, a pullback within it, and Three Inside Up at the bottom of that pullback. A breakout to the upside then means a return to a trend that already exists — you're not trying to catch a bear-market bottom, you're hopping on a moving train. Enter on a close above the pattern's high, stop below its low.

Scenario 2 — a classic reversal after a decline. The pattern forming at the bottom of a longer downward move. It works 65% of the time, but demands patience on entry: confirmation is a close above the top of the entire pattern, not just the sight of the third white candle. The data also suggests patterns near the 52-week low performed best — a pattern at a local top after a long rally isn't that context.

Scenario 3 — a broken pattern as a short signal. If, after Three Inside Up, price closes below the pattern's low instead of breaking upward — and the broader market is in a downtrend — you have a setup that in the data produced the strongest moves (averaging -7% over 10 days). Psychologically hard (you're trading against a "bullish" pattern), statistically justified.

How NOT to play it. Don't enter on the second candle — a plain harami is 53%, a coin flip. Don't enter reflexively on the close of the third candle without checking context either: this pattern against the overarching downtrend is its weakest version. And don't count on a ride with no pullbacks — the measure-rule target is delivered in at most 60% of cases, so taking partial profit makes sense.

Stop loss and target. Stop below the pattern's low (the low of candle 1 or 2 — whichever is lower). Target: the nearest significant resistance or the pattern's height projected from the breakout point, with partial profit-taking along the way. If the stop ends up too far from the target, walk away — the setup's math matters more than the beauty of the candles.

Myth vs. Measurement

Myth: "Confirmation is a waste of time — waiting means missing the entry." Measurement: the gap between a harami (53%) and a confirmed harami (65%) is the difference between a coin flip and a real edge. You pay for it with a worse entry price — and in this case, it's worth it.

Myth: "A bullish pattern means you only trade longs." Measurement: the best average 10-day move after Three Inside Up was a 7% decline following a downside breakout in a bear market. A broken pattern can be more valuable than one that worked.

Myth: "Rank 20/103 guarantees a big profit from a long." Measurement: the performance rank averages all breakout variants in both directions — and the target measured by the pattern's height is achieved best 60% of the time. A good pattern means better odds, not a guarantee.

A Sample BTC Scenario

BTC is in a months-long uptrend on the D1, but the last two weeks have been a pullback — a string of red candles sliding down toward a support zone and the 50-day moving average. At the bottom of the pullback, a large red candle prints, followed by a small green candle entirely inside its body, and on the third day a green candle closes above the second candle's close. A textbook Three Inside Up in the best possible context: a pullback within an overarching uptrend.

The plan: wait for a D1 close above the pattern's high (the high of candle 1). Enter after that close, stop below the pattern's low, first target at the local high before the pullback — take partial profit there, trail a stop on the rest. If instead of an upside breakout you get a close below the pattern's low — the long is off the table — and if the broader market has slid into a downtrend, you have a short-side scenario sitting on the same three candles.

Quick checklist:

• Is there a clear downward move before the pattern (ideally: a pullback within an uptrend)?
• Is candle 2's body entirely contained inside candle 1's body?
• Does candle 3 close above candle 2's close?
• Are you waiting for a close above the pattern's high instead of entering "on the third candle"?
• Does a stop below the pattern's low give a sensible risk-reward ratio?
• Do you have a plan for the pattern breaking (a close below the low), not just for it succeeding?

Three Inside Up is one of those rare patterns where the textbook and the data roughly agree — confirmation genuinely raises the win rate, and the higher-timeframe trend context does the rest. Just remember 65% isn't 100%, and the most profitable version of this pattern is sometimes the one where it breaks.

FAQ

Rafał — Krypto Bez Ściemy

Trader and founder of Strefa Tradingu. He’s been breaking crypto down on YouTube for years — no hype, no signals, with a focus on market structure and risk management.

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