확장형 천정 Complete Guide

reversalbearish20 bars

What is 확장형 천정?

확장형 천정은 하락세 편향을 갖는 반전 패턴입니다. 형성되는 데 최소 20개의 봉이 필요합니다. 이 패턴은 기술적 분석에서 널리 알려져 있으며 모든 시장 및 시간대에서 찾아볼 수 있습니다.

확장형 천정 pattern illustration

Identification Rules

  1. A clear prior uptrend must be evident before the pattern begins to form.
  2. The pattern must exhibit at least two progressively higher highs and two progressively lower lows, indicating expanding volatility.
  3. Two diverging trendlines can be drawn: an upward-sloping upper trendline connecting the higher highs, and a downward-sloping lower trendline connecting the lower lows.
  4. The pattern should typically span a minimum of 20 bars (or approximately three weeks, as per Bulkowski's observations) to be considered valid.

References

  • Thomas N. Bulkowski (2005). Encyclopedia of Chart Patterns.
  • Steve Nison (2001). Japanese Candlestick Charting Techniques.

FAQ

What is the typical success rate of a Broadening Top in predicting a bearish reversal?

According to Thomas Bulkowski's extensive research, Broadening Tops have a high probability of predicting a bearish reversal, with approximately 93% of breakouts occurring to the downside. This makes it a strong indicator for trend reversal, though its performance in meeting specific price targets is lower.

How does volume typically behave during the formation of a Broadening Top pattern?

Volume during the formation of a Broadening Top tends to be erratic, but often shows an overall increase as the pattern develops. This is particularly noticeable on the downswings, reflecting increasing market participation, indecision, and growing distribution by sellers.

What is the average price decline after a confirmed Broadening Top breakout?

Based on Bulkowski's analysis, the average price decline after a confirmed downward breakout from a Broadening Top pattern is approximately 19%. It's important to note that this is an average, and actual declines can vary significantly.

How long does a Broadening Top typically take to form?

While the minimum duration for recognition is often cited as 20 bars, Bulkowski's research suggests that Broadening Tops typically take at least three weeks to form. However, they can extend for several months, indicating a prolonged period of market indecision and increasing volatility.

Are there any common pitfalls or false signals associated with Broadening Tops?

흔한 함정은 조기 진입입니다. 해당 패턴의 내재적 변동성으로 인해 가격이 크게 변동할 수 있습니다. 하단 추세선 아래로의 확정적인 돌파를 기다리는 것이 중요합니다. 또한, 돌파 레벨로의 되돌림(throwback) 또는 풀백(pullback)이 흔히 발생하며(약 66%의 경우 발생), 예상하지 못할 경우 트레이더를 오도할 수 있습니다.

More Analysis

확장형 천정 시장 스캔관련 패턴관련 지표
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Reviewed by KlineVision Research Team, CFA Charterholder, 10+ years quantitative research· 2026년 4월 23일

Parts of this page (FAQ, introductions) are AI-assisted. Core data and statistics are algorithmically computed. All pattern definitions are human-reviewed.

Data source: EODHD · Last updated: 2026년 4월 23일

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Data source: EODHD · © 2026 KlineVision AI