A single doji marks indecision. Three doji in a row, the middle one gapped clear of both neighbors, is the tri-star — the rarest reversal shape on the whole chart. Almost never seen. Impossible to ignore when it is.
The Sakata ledgers already treated a single doji as a market holding its breath. Three in a row, the middle one gapped clear of the candles on both sides, was recorded as an omen too loud to miss.
Without candle bodies, a bar chart has no way to show open equalling close — the doji itself is invisible, so a shape built from three of them never had a chance.
Steve Nison's 1991 catalog names tri-star among the rarest entries in the whole vocabulary — a curiosity worth knowing, not a pattern worth hunting for.
Most traders will go long stretches without seeing a genuine tri-star. Knowing the shape matters more than expecting to trade it often.
Three sessions in a row, each closing at or near its open. The middle doji's whole range gaps clear of both the first and third doji — an island of pure indecision, isolated on both sides.
A tri-star at the bottom of a decline is bullish tri-star: exhaustion so complete the market can't even manage a directional candle. The identical shape at the top of an advance is bearish tri-star — the same paralysis, warning the other way.
Three consecutive true doji, with two real gaps, is a low-probability coincidence on any random tape. When it happens anyway, at a real extreme, it says something no single candle can — the market has run completely out of conviction, three times running.
Around the December 2018 low, a cluster of small-bodied sessions approaches tri-star shape without fully isolating the middle candle — a useful example of how close is still not confirmed.
Even in the volatile week around the August 2015 flash-crash, sessions closing at their open, three times running, with real gaps between them, simply did not line up cleanly — the honest lesson is how rare a clean instance really is.
Because a clean, fully-isolated tri-star is genuinely uncommon even across multiple market cycles, this lesson teaches the shape schematically rather than forcing a real chart to fit it — the honest position, not a manufactured one.
After a long decline, three consecutive doji print. The middle one's entire range sits above the first doji's range and below the third's — fully clear on both sides. What is this?
A similar three-doji cluster appears, but the middle doji's range slightly overlaps the first doji's range. Is this a valid tri-star?
Three consecutive doji print in the middle of a flat, directionless range with no leg into or out of it. Technically all three qualify as doji. Should you trade this as a tri-star?
Three sessions, watched as they happen. The doji trio builds tick by tick on the left — and the mark it leaves in the ledger on the right. Confirmed at a low, at a high — and the near-miss that never truly isolated.
A trend, a run of near-flat candles, and a question: does the middle one truly isolate? Judge the shape and the address, then call it: long, short, or stand aside. Most tapes are a pass. That is the lesson.
The classic error with rare patterns is motivated pattern-matching — wanting to have seen one badly enough to call a near-miss the real thing. The discipline is mechanical: apply the isolation test exactly, with no partial credit, and accept that most of your trading career may pass with zero confirmed tri-stars.
A single doji is common. Three in a row, the middle one truly isolated, is not — the tri-star earns its weight precisely because it almost never shows up. Learn the shape, apply the isolation test without exception, and expect to wait a long time between real ones.
«Rare things are precious.»