Tools

Risk-first tools on the same engine and the same metric definitions as the model pages.

• Backtest — any mix of tickers, calendar rebalancing, total-return data; growth and underwater charts, drawdown anatomy, calendar-year returns, the model pages' metric definitions.
• Portfolio review — your holdings by account, what they cost all-in, what switching would cost in tax, and how the paths compare against a three-fund and the registry.
• Diversifier — how much of X helps portfolio Y, across the whole weight curve, and whether that weight is stable. Coming.
• Retirement projection — cashflows by age in today's dollars, income phases, Social Security and pension; funded or not, max spending, earliest retirement, balance and income charts.
• Retirement stress test — the same plan replayed over every historical start month of any portfolio or registry model, in real terms: start dates survived, worst start, fan of outcomes. On the projection page.

History tools accept tickers or asset ids (for example us_large:60, us_bond:40); extended history represents a ticker by its asset's chain before its own first trading day.