Ampliación de la Base Complete Guide
What is Ampliación de la Base?
El Abanico Amplio Inferior es un patrón de reversión con sesgo alcista. Requiere al menos 20 barras para formarse. Este patrón es ampliamente reconocido en el análisis técnico y se puede encontrar en todos los mercados y marcos temporales.
Identification Rules
- Prior Trend: A clear and established downtrend must precede the formation of the pattern.
- Diverging Trendlines: The pattern must feature two diverging trendlines, with the top line sloping up and the bottom line sloping down.
- Peak and Valley Count: There must be at least two distinct higher highs and two distinct lower lows within the formation.
- Bullish Confirmation: The pattern is confirmed only when the price breaks and closes above the upper resistance trendline.
References
- Thomas N. Bulkowski (2005). Encyclopedia of Chart Patterns.
- Steve Nison (2001). Japanese Candlestick Charting Techniques.
FAQ
What is the typical volume profile for a Broadening Bottom?
Volume generally expands as the pattern develops, reflecting the increasing volatility and emotional intensity of the market participants.
How reliable is the Broadening Bottom according to Bulkowski?
It is quite reliable with a low break-even failure rate of 10% and an average rise of 27% in bull markets.
What is a 'partial decline' in this pattern?
A partial decline occurs when the price heads toward the lower trendline but turns up before reaching it; this is often a precursor to an upward breakout.
Why is this pattern considered difficult to trade?
The widening price swings can easily trigger stop-loss orders, making entry timing and risk management more challenging than with narrowing patterns.
More Analysis
Parts of this page (FAQ, introductions) are AI-assisted. Core data and statistics are algorithmically computed. All pattern definitions are human-reviewed.
Aviso legal: Esta página se basa en datos de mercado públicos y análisis técnico algorítmico. No constituye asesoramiento de inversión.
Data source: EODHD · © 2026 KlineVision AI