Bollinger Bands Cross Signal - MetaTrader 5 Script | Forex Indicator Download - MT4/MT5 Resources

This custom indicator combines Bollinger Bands with clear Buy/Sell Arrow on the chart.
It automatically detects the price Cross over the lower rail line or Below the upper track and draw the arrow accordingly.
The goal is to help traders quickly identify Potential reversal points On the edge of market volatility.

This indicator calculates Bollinger Bands Use built-in iBands functionality.

Buy signal (blue arrow) → When the price closes below the lower track on the previous candle and then close on it On the next candle.

Sell ​​signal (red arrow) → When the price closes Above the upper track on the previous candle and then close under it On the next candle.

Signal appears Only once per direction Avoid repeated arrows in the same action until the opposite signal is triggered.

this Bollinger Bands Can be shown or hidden according to user preference.

Clear buy/sell arrows directly on the chart.

Optional display Bollinger upper, middle and lower lines.

Applicable to all symbols and time range .

use No redrawing Logic (the signal is confirmed after the close of the candle).

Easy to customize parameters.

attached Add indicators to your charts.

put BB_Period and BB_bias Depending on your trading style.

pay attention to blue arrow Near the lower limit (potential buy) and red arrow Close to upper limit (potential sell).

Combined with other confirmations e.g. trend filter or candlestick pattern to obtain higher accuracy.

works well Sideways or range markets Prices frequently hit Bollinger Bands.

exist Strongly trending markets , consider using it with a trend filter (such as a moving average) to avoid counter-trend signals.

Always test settings against your preferred trading symbols and timeframes.

This indicator is a technical analysis tools And there is no guarantee of profit.
used with appropriate risk management and other trading strategies.

Attachment download

📎 bollinger_band_signal.mq5 (12.13 KB)

Source: MQL5 #62377