Four Rules for a Fair Comparison
Both assets need the same start date, end date, currency and cash-flow rule. Bitcoin trades continuously while gold follows different market hours, so use the nearest common valid observation.
Return Is Not Enough
Bitcoin produced much higher returns in some long windows but exposed investors to much larger interim losses. Gold has lower volatility, a different liquidity structure and potential physical custody cost. Maximum drawdown, recovery time and the worst annual result matter as much as final return.
Different Portfolio Roles
Bitcoin is a high-volatility digital asset with a limited history. Gold is a non-cash-flow-producing defensive commodity with a long monetary history. They are not direct substitutes; horizon and loss capacity determine suitability.
Run a Better Test
- Use ten rolling windows instead of one start date
- Compare lump sum and monthly DCA separately
- Add spread, custody and tax costs
- Recalculate in real purchasing-power terms
How Should You Use the Result?
This analysis is designed to make assumptions visible and reproducible, not to declare one universal winner. Change the amount, start date, currency and contribution frequency in the calculator to see how sensitive the outcome is. Review the worst window as carefully as the best one before making a decision.
A real investment can differ because of execution price, bid-ask spread, commission, tax, product expenses and the data provider's closing-time convention. The figures are therefore a gross historical comparison, not a personal return or a forecast.
