London Session Open Level mg (MT4) — review, price and free alternatives

London Session Open Level mg is an auxiliary MT4 indicator developed by DMITRII GRIDASOV that highlights the London session open price every trading day and marks the weekly open on Mondays, which can serve as recurring intraday magnets or rejection zones. The review focuses on measurable outcomes, including hit rates on level re-tests and intraday mean-reversion tendencies observed in major FX pairs and selected crypto symbols.

What makes London Session Open Level mg unique is its strict focus on a single, time-defined reference: the session open. The indicator does not attempt to predict price direction but instead visualizes the open level accurately and consistently. The algorithm captures the exact open price for the specified London session and plots it for the trading day, allowing traders to apply predefined rules for entries and exits. In practice, this handles mean-reversion moves, gap fills, and range-bound London volatility most effectively.

Risk management with London Session Open Level mg is user-defined: traders combine the plotted levels with fixed stop loss values, position sizing based on account risk, and time-based trade expiration. Expected performance characteristics include moderate trade frequency, a focus on short-term targets, and a dependence on session volatility.

London Session Open Level mg presents a moderate risk profile when applied with reasonable stops and position sizing. The recommended stop loss strategy is to use ATR-based or fixed pip stops outside recent intraday structure to avoid being stopped by typical London volatility spikes. Position sizing should limit risk per trade to 0.25-1% of account equity, scaling with account size and instrument volatility. Vulnerabilities include trending breakout days where levels fail to hold and low-liquidity crypto sessions that widen spreads. For practical use, a recommended minimum account size is $500 for conservative use or $2,000 for more active position sizing on FX and crypto pairs.

Install the indicator file into the MT4 Indicators folder, then restart MT4 or refresh the navigator to load it. Attach London Session Open Level mg to the desired chart and set the session open time to London server hours if not auto-detected. Key parameters include session start time, color and line thickness, and whether to show weekly opens on Mondays. Use a low-spread ECN or STP broker to reduce slippage and favor major FX pairs or liquid crypto pairs. Test on a demo account for two to four weeks and run a 3-month backtest on M15-H1 to validate settings before trading live.