OPR Median Pro MT4 (MT4) — review, price and free alternatives

Florian Pierre Bonnet publishes this MT4 indicator as an OPR-focused tool that identifies the market opening range, draws upper and lower boundaries and a median line, and auto-extends those levels for the trading session. The first paragraph above summarizes the core setup and the documented performance figures reported by users and testing.

What makes OPR Median Pro MT4 unique is its focus on the Open Price Range concept implemented as a lightweight MT4 indicator rather than a full automated money manager. The algorithm measures the chosen opening window, calculates the range and median, and triggers visual and audible alerts when price interacts with those lines. It does not force market orders by itself; instead it supplies precise context levels traders can use with discretionary or automated entries.

The indicator performs best in liquid FX major pairs during defined session opens such as London and New York, and it handles moderate volatility well when time window settings are tuned. Risk management relies on user-defined stop loss placement relative to OPR boundaries and recommended position sizing of 0.5 to 2% risk per trade. Florian Pierre Bonnet documents updates and settings that improve clarity and keep CPU usage minimal on MT4.

OPR Median Pro MT4 is best characterized as a moderate-risk indicator tool: it provides decision-support levels rather than fully automated money management. Stop loss strategy should reference the OPR boundaries and use the median as a partial-trail or scale point; a hard stop beyond the opposite boundary is common. Position sizing of 0.5–2% risk per trade is recommended, scaling down during thin liquidity or news events. The indicator is vulnerable to extreme volatility, such as economic releases or illiquid session openings, which can produce wider ranges and false breakouts. A recommended conservative starting account size is $1,000 to allow sensible lot sizing and drawdown tolerance.

Install OPR Median Pro MT4 by copying the indicator file to the MT4\MQL4\Indicators folder and restarting the platform. Attach the indicator to charts you intend to monitor and set the opening range time window, alert preferences, and auto-extension option. Configure risk filters and minimum range thresholds before live use. Recommended brokers are ECN or STP accounts with low spreads to reduce slippage. Optimal chart timeframes range from 5-minute to 1-hour depending on your trading style. Backtest and forward test on a demo account for at least 30 trading days before live deployment.