Japan "Lost Decades" stress test — 1990–2020
VAS / VGS / JGB portfolio · Waterfall Rebalancing Strategy
The scenario: Applying 1990–2020 Japanese conditions to your 30/40/30 portfolio.
It utilizes a "Buy the Laggard" algorithm: surplus income tops up the cash buffer first,
then buys whichever asset class has fallen furthest below its target percentage.
Adjust your portfolio settings
Asset allocation — must total 100%
Portfolio total value 1990–2020 (incl. cash buffer)
Your portfolio (Rebalancing)
Pure Nikkei-only reference
Starting value
Annual spend actually taken ($'000)
Cash buffer balance over time ($'000)
Year-by-year detail
| Year |
Phase |
VAS ret. |
VGS ret. |
JGB ret. |
Portfolio value |
ETF distributions |
Cash buffer |
Total income |
Spend taken |
Reinvested (Laggard) |
Tax paid |