Build & Backtest Global ETF Portfolios
Multi-asset backtesting, retirement planning, FIRE calculator — transparent methodology, zero cost.
What Are You Deciding?
Pick your context. We'll take you to the right tool.
How would my portfolio have performed?
Backtest with real data, DCA, rebalancing, and up to 3 portfolios.
Open BacktesterAm I truly diversified?
Check overlap, correlation, and concentration across your ETFs.
Check OverlapHow much do I need to retire?
Nest egg calculator with the 4% rule and real projections.
CalculateWhat is modern portfolio theory?
Markowitz, diversification, correlation, efficient frontier — interactive guide.
Read GuideHow do fees really affect me?
See how a 0.50% vs 0.03% TER compounds over 30 years.
SimulateDCA or invest all at once?
Lump sum wins ~⅔ of the time. But DCA may suit your psychology.
CompareHow much passive income can I earn?
Project dividend income with DRIP, taxes, growth, and monthly contributions.
CalculateAll Tools
Analysis, simulators, and guides — grouped by function.
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Chilean Financial Tools
Net salary calculator, mortgage capacity, tax simulator, UF/USD live rates, AFP comparison and 45+ specialized tools for Chile.