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Portfolio & Compare
Pick 2–6 saved systems to compare side by side and blend into one portfolio — all over a common window so the comparison is fair.
Choose systems
Leave blank to use a fair common window: the latest start any selected system needs, through the earliest end they share. Overrides only apply within those safe bounds.
Equity curves (cumulative BSP P/L, level stakes)
Side by side
Return correlation
Month-by-month BSP P/L. Low / negative (green) = the systems win at different times — that's what smooths a portfolio.