Choosing MetaTrader 5 Tick Modes for Expert Advisor Testing

Summary

This overview explains how MetaTrader 5’s Strategy Tester simulates price changes and why the chosen tick mode affects an Expert Advisor’s test. In Every tick mode, the tester builds a detailed sequence from minute-bar open, high, low, and close points, while the exact historical order and timing of intermediate prices are not known. The 1 Minute OHLC mode reduces the sequence to those four prices, and Open prices only calls the Expert Advisor at the start of each testing bar.

The article illustrates how coarse simulation can create unrealistic results when a strategy exploits the assumed ordering of OHLC prices. It recommends checking unusually strong results in a more detailed mode. Open prices only is presented as a fast option for strategies that decide and trade at bar opens without relying on intrabar stops or pending orders; it also has restrictions on data access and execution features. A standard moving average Expert Advisor is reported to produce matching balance graphs across modes in the example. The text also surveys tester behavior beyond tick generation, so its guidance is specific to the described platform and historical simulation setup.

Key ideas

• Every tick mode simulates a more detailed price path but takes longer than simplified modes.
• Minute OHLC mode omits intermediate ticks and can reward strategies that exploit its fixed price sequence.
• Open prices only suits strategies that make decisions at bar openings and avoid intrabar order behavior.
• Suspiciously strong results from simplified modes should be checked with more detailed tick simulation.
• Open prices only restricts access to lower or non-multiple timeframes and certain execution features.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.