The London Open Indicator is a custom-built trading tool for NinjaTrader that marks the London session opening range, helping traders identify high-probability breakout levels. It highlights key price zones where institutional volume typically enters the market.

The indicator automatically plots the London session’s high, low, and mid-range levels. These areas often become breakout or reversal points. As price interacts with these zones, traders can spot trend continuation or exhaustion setups in real time.