I wrote about such type of signal like Bollinger Bands Expansion. You can find the link below. It's a good way to open trades after period of low volatility and try to catch good price movement. Here is the sample of such signal. As you can see the Profit Level has been reached and we could have good profit, if we opened Long trades using 3 Entry Levels. Stop orders should be placed below Moving Averages with period 20 or 50. DMI and MACD confirmed breakout and using these indicator with Bollinger Bands together could produce good profit. Think about it )