Expert Advisor Based on MACD-Histogram for MT4

Enter position -Long or short:

Macd signal cross over Macd AND price increased or decreased X percent from previous bar. This X percent should be changed for back-testing purpose and if x percent equals to zero this condition should be off.

As shown in the picture price should increase in order to increase allocation. Each arrow indicates one buy level.

Exit from position long or short.

Macd crosses signal or equity increases X percent or hits trailing stop loss(for equity)

Example: Macd crosses over it's signal and algo goes long and allocates 5% of the equity. Price of the instrument increases X percent algo buy another 5%. Algo keeps buying every graph's time interval. After allocation reaches to 50% algo hits profit level and exits the position. Algo waits for next macd signal cross for long or short positions. 

Allocation for each buy or sell signal should be changed for back test purposes. And allocation should be random amount to meet FIFO requirements. 5-5.5% per buy signal.