Monte Carlo simulation, deterministic projections, and 15 specialized calculators — a full planning suite built on 154 years of market data. We're building it now. The Investing Engine is live today.
Skip the generic calculators. Get institutional-grade analysis that actually accounts for market volatility, sequence risk, and the tax brackets you'll actually pay.
Bootstrap-resampled from historical years to preserve real stock-bond correlation. Up to 200 paths free, 10,000 on paid plans. See the probability of success, not a single optimistic projection.
Pull live prices, historical returns, and volatility automatically. Override any value. Every assumption is yours.
Watch the gap widen as assets compound at different rates.
Coast · Barista · Lean · Fat. Four variants, one calculator.
Model safe withdrawal rates with inflation. Know the floor, not just the average.
From inputs to insights in under two minutes.
Add assets by ticker. We pull current prices, historical returns, and volatility automatically. Override any value — every input is yours to edit.
~ 45 sec · 5+ tickersChoose a target retirement date (or explore a range). Set expected spending, inflation assumptions, contribution amounts, and claim age.
~ 30 sec · all editableGet instant deterministic projections or run Monte Carlo for full probability distributions. Click any number to see the math.
~ 800 ms · 10,000 paths