Warren Buffett 90/10 Portfolio
Buffett's advice for his own estate - 90% in a low-cost S&P 500 fund, 10% in short-term Treasuries.
S&P 500 Backfill (estimated to 1871)1871-02-28 → 2026-06-30Estimated from 1871 to SPY's 1993 inception using the S&P 500 total-return index (Robert Shiller), minus the fund's expense ratio, then chain-linked to the real SPY fund. The dashed part of the chart is estimated - an index proxy, not the fund's real record.
%
backfill estimated before SPY's 1993 inception, from the S&P 500 total-return index (Robert Shiller).
Short-Term Treasury Backfill (1-3yr, estimated to 1976)1976-07-31 → 2026-06-30Estimated from 1976 to SHY's 2002 inception using the 2-year Treasury yield (FRED), modeled as a constant-maturity bond, minus the fund's expense ratio, then chain-linked to the real SHY fund. The dashed part of the chart is estimated - an index proxy, not the fund's real record.
%
backfill estimated before SHY's 2002 inception, from the 2-year Treasury yield (FRED), modeled as a constant-maturity bond.
Total 100%
Data window Warren Buffett 90/10 Portfolio: 1976-07-31 → 2026-06-30 · start: SHYX
Dashed = estimated before the fund existed (reconstructed from its tracked index): SHYX from 1976-07-31 · SP500X from 1871-02-28
Portfolio growth
Warren Buffett 90/10 Portfolio
CAGR11.20%
Max Drawdown-45.71%Feb 2009
Volatility12.49%
Sharpe0.59
Final balance$2,017,307
Total return20073.07%
Drawdown
Annual returns
More statistics
| Warren Buffett 90/10 Portfolio | |
|---|---|
| Total Return | 20073.07% |
| Sortino | 0.81 |
| Best Year | 35.23% |
| Worst Year | -32.79% |
| Positive Months | 65.00% |
| Annualized Return (mean) | 11.44% |