Idea by: Iurii Tokman.

MQL5 code by: Vladimir Karputov.

The EA does not use any indicators - only the current price and the OHLC of zero bar (the rightmost bar in the chart).

Working algorithm: As soon as the price rolls down from the High at the Rollback rate distance and we are within the new bar - it is a signal to open a BUY position; if the price moves above the Low at the Rollback rate distance and we are within the new bar - it is a signal to open a SELL position.

In the parameters, you can enable trailing and reversing signals for opening positions.

Inputs

• Lots - position volume;
• Stop Loss - Stop Loss;
• Take Profit - Take Profit;
• Trailing Stop - trailing;
• Trailing Step - trailing step;
• Timeframe - timeframe, from which OHLC and bar opening time are taken;
• Rollback rate - rollback from the price;
• Reverse signal - reverse flag of signals for opening positions;
• magic number - unique identifier for the EA.

Test results (parameter "Balance max") for all symbols on D1 in the "Every tick based on real ticks" from 2018.01.01 to 2018.05.10: