双布林线橡皮筋 (Double Bollinger Rubber Band)

Here is a trading idea based off extreme movements away from bollinger bands. Tge name comes from the fact that price tends to snap back to the mean just like a rubber band being stretched

I have looked at it only on GJ and GU.

Setup: On a 1 hour GJ chart, add bollinger bands (14) with deviation of 1 (red) and again with deviation of 2 (navy), both set to the close.

Sell signal: Price crosses the uppermost navy BB Once it has moved 20 pips away from the BB, enter at market. Stop placed 20 pips above the sell. Exit when price touches the upper red BB.

Buy signal: Price crosses the lower navy BB. Once it has moved 20 pips away from the BB, enter at market. Stop placed 20 pips below the buy. Exit when price touches the lower red BB.

This appears to work quite well when price is trending and spikes out of its range and upon the first breakout following a BB sqeeze (ie when the BB have narrowed then expand as price explosively moves signalling a trend).

Avoid when price is trending strongly in either direction (hugging the navy BBs making successive highs/lows.