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 5 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.
CalculateWhat if I had invested years ago?
Replay any ETF with real data: final value, CAGR, and the drops you'd have survived.
Time-travelMy portfolio drifted — what do I trade?
Exact buy/sell orders to get back to target, or invest new money without selling.
RebalanceAll Tools
Analysis, simulators, and guides — grouped by function.
ETF Analysis
Financial Calculators
Nest Egg
How much to retire
Drawdown
How long it lasts
Compound Interest
Growth projections
FIRE
FI Number & Coast
Fee Drag
Cost of high fees
DCA vs Lump Sum
Timing comparison
Inflation
Purchasing power
Emergency Fund
Safety net
S&P 500
Returns since 1928
Dividend Income
DRIP, income goal, projections
Time Machine
What if you had invested?
Rebalancing
Exact trades to target
Withholding Tax
VOO vs CSPX, quantified
Chilean Financial Tools
Net salary calculator, mortgage capacity, tax simulator, UF/USD live rates, AFP comparison and 45+ specialized tools for Chile.