The Bollinger Squeeze Basic Indicator is an advanced volatility and momentum-based trading tool designed for MetaTrader 4 (MT4) and MetaTrader 5 (MT5) platforms. It combines three powerful technical concepts — Momentum, Bollinger Bands, and the Keltner Channel — to help traders identify periods of low volatility and anticipate potential breakout movements.

The indicator is displayed in a separate indicator window and consists of a momentum histogram along with a series of colored dots on the zero line, visually representing the relationship between Bollinger Bands and the Keltner Channel.

How the Indicator Works
The Bollinger Squeeze Basic Indicator operates on two analytical layers:

Momentum Analysis
The histogram shows both the direction and strength of the current trend:

• Dark green bars – Rising momentum above the zero line (strong uptrend)
• Light green bars – Falling momentum above the zero line (weakening uptrend)
• Dark red bars – Rising momentum below the zero line (strong downtrend)
• Light red bars – Falling momentum below the zero line (weakening downtrend)

This color-coded structure helps traders assess not only trend direction, but also trend quality and exhaustion.

Volatility Squeeze Detection
A sequence of colored squares plotted along the zero line reflects the interaction between Bollinger Bands and the Keltner Channel:

• Blue squares – Bollinger Bands are inside the Keltner Channel, indicating low volatility and a sideways market
• Red squares – Bollinger Bands are outside the Keltner Channel, indicating high volatility and a trending market

This volatility filter allows traders to clearly distinguish between consolidation phases and trend expansion phases.

Trading Concept
The core idea behind the Bollinger Squeeze Basic Indicator is simple yet effective:

• Wait for a squeeze phase (blue squares), where volatility contracts and price moves sideways
• Prepare for breakout entries when the squares switch from blue to red
• Use the momentum histogram to confirm trend direction and strength
• Exit trades when momentum weakens or begins to reverse

This approach helps traders avoid entering during low-probability ranging markets and instead focus on high-momentum breakout opportunities.

Input Parameters
The indicator includes flexible settings to suit different markets and trading styles:

• MaxBars (default: 300) – Number of bars used for calculations
• BB_Period (default: 20) – Period for Bollinger Bands
• BB_Deviation (default: 2.0) – Bollinger Bands deviation
• Keltner_Period (default: 20) – Period for Keltner Channel
• Keltner_Factor (default: 1.5) – Keltner Channel multiplier
• Momentum_Period (default: 12) – Period for Momentum calculation

Alert System
The indicator supports multiple alert types triggered by changes in the Bollinger/Keltner state:

• MetaTrader native pop-up alerts
• Email alerts
• Mobile push notifications

Traders can choose whether alerts are triggered on the previous closed candle or the current forming candle.

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