The blue line is PCMA - middle of a .
The lime line = PCMA - the shift parameter (%).
Red line = PCMA + the shift parameter (%).
Strategy uses limit orders. For opening of positions and for closing of positions.
If the price is lower than the lime line - opens a long position.
If the price is higher than the red line - opens a short position.
The position is closed on the blue line. Long and short.