Spot Gold London Opening Range Expansion, Long–Short

Hypothesis

Derived by the Research Lead from je-suis-tm's London Breakout backtest: test whether London opening participation extends a breakout of the preceding hour's range on spot gold. Source: https://github.com/je-suis-tm/quant-trading/blob/611b73f2c3f577ac5b28aaa19ac8c43d3236c7a5/London%20Breakout%20backtest.py. Use XAUUSD.SPOTMETAL 5-MINUTE bars and Europe/London local time, including DST. This is a research-only gold adaptation, not a reproduction of the source's GBPUSD results. Orders execute at completed signal-bar closes; protective stops trigger intrabar in the platform. No next-session-open fills or exchange-hosted protection are required.