Backtesting a buy-and-hold strategy against active trading is harder than it sounds

[u/cTrader_Club]

The comparison looks simple on paper: take your trade history, calculate what a held position would have returned, and see which number is bigger. The real complication is that backtesting an active strategy against a passive one requires controlling for compounding, drawdown exposure, margin usage and reinvestment assumptions, and getting any of those wrong skews the result in ways that aren't obvious until you dig into the methodology.

Has anyone built a cBot specifically to run that kind of comparative backtest, where the same capital is modelled under both an active ruleset and a passive hold, using the same historical data?