HomePortfoliosWarren Buffett 90/10 portfolio

Warren Buffett 90/10 portfolio

This portfolio follows Warren Buffett's 90/10 investment advice, allocating 90% to a low-cost S&P 500 index fund and 10% to short-term government bonds. The strategy is designed for simplicity, broad market exposure, and low fees.

Optimize
Annual Rebalancing
USD
Moderate Risk
15.5yr backtest

Performance Summary

Total Return+532.86%
Annualized Return+12.66%
Volatility+13.92%
Sharpe Ratio0.77
Max Drawdown+30.44%

Holdings

Asset Allocation

Asset Class

Equity 90.0%Bonds 10.0%
Holdings Details
Warren Buffett 90/10 portfolio: 90% S&P500 ETF, 10% Treasury bonds. Simple, diversified, low-cost strategy for long-term wealth building with annual rebalancing
AssetTypeAllocationTER
CSPX.LSE
iShares Core S&P 500 UCITS ETF USD (Acc)IE00B5BMR087
ETF
90.0%0.07%
CBU3.LSE
iShares USD Treasury Bond 1-3yr UCITS ETF (Acc)IE00B3VWN179
ETF
10.0%0.07%
Total100.0%0.07%

Performance

Portfolio Value Over Time
Starting with $10,000 investment → now worth $63,286.36
Histogram of Monthly Returns
The portfolio had a positive return during 126 of the 187 months (67%)
Monthly Returns Heatmap
Best month: +9.8% • Worst month: -9.0% • Best year: 2013 (+31.0%) • Worst year: 2022 (-17.2%)
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026+0.6%-0.6%-5.7%+5.6%---------0.5%
2025+2.9%-3.2%-5.0%-0.5%+6.3%+4.7%+3.0%+1.1%+2.8%+2.7%+0.1%+0.8%+16.3%
2024+1.9%+3.6%+3.3%-3.0%+2.5%+5.3%+0.6%+1.3%+2.5%-0.2%+5.0%-1.5%+23.1%
2023+5.2%-1.3%+2.5%+1.7%+0.4%+5.9%+3.1%-1.1%-4.1%-2.9%+8.4%+5.0%+24.5%
2022-5.8%-1.6%+4.2%-7.1%-2.0%-7.3%+7.4%-2.4%-7.1%+5.1%+2.1%-2.7%-17.2%
2021+0.1%+2.7%+3.4%+4.7%+0.8%+1.8%+2.3%+2.9%-3.6%+5.3%-0.1%+3.8%+26.4%
2020+0.6%-8.7%-8.2%+9.3%+3.1%+2.0%+5.0%+7.0%-2.9%-2.9%+9.3%+3.5%+16.2%
2019+7.0%+3.2%+1.4%+3.5%-5.0%+5.7%+2.6%-2.6%+1.9%+1.6%+3.7%+2.4%+27.9%
2018+4.4%-2.6%-3.6%+1.6%+1.5%+1.0%+2.6%+2.8%+0.7%-6.2%+0.9%-7.3%-4.8%
2017+0.6%+4.1%+0.2%+0.8%+1.0%+0.8%+1.9%-0.1%+1.9%+2.3%+2.5%+2.0%+19.5%
2016-6.2%+2.0%+5.2%-0.3%+2.0%-0.4%+4.1%-0.1%+0.2%-1.5%+3.4%+2.1%+10.4%
2015-3.2%+4.8%-1.2%+1.0%+0.4%-1.7%+2.2%-4.9%-3.5%+8.4%-0.0%-1.0%+0.5%
2014-2.6%+4.0%+0.3%+0.5%+2.3%+2.1%-0.8%+3.0%-0.7%+1.5%+2.9%+0.6%+13.7%
2013+7.0%+1.5%+2.8%+1.6%+3.9%-2.4%+4.7%-3.2%+3.0%+4.5%+2.7%+1.6%+31.0%
2012+3.2%+4.1%+2.9%-0.6%-6.0%+3.8%+2.2%+1.8%+1.7%-1.8%+0.7%-1.3%+10.7%
2011+2.0%+3.1%+0.2%+2.2%-1.2%-2.0%-0.4%-9.0%-2.0%+9.8%-1.6%+2.2%+2.2%
2010---------+2.4%-0.4%+6.1%+8.2%
> +2%
0% to +2%
-2% to 0%
< -2%
Drawdown Analysis
Maximum drawdown: +30.44% • The longest drawdown period lasted for 1 year and 11 months and was between December 2021 and December 2023. It reached a trough of -22.4%.

Detailed Metrics

Returns
Total Return
+532.86%
Annualized Return
+12.66%
Avg Monthly Return
+1.06%
Risk
Volatility (Annual)
+13.92%
Max Drawdown
+30.44%
Positive Months
67%
Average Drawdown
-4.1%
Risk-Adjusted
Sharpe Ratio
0.77
Risk-free rate: 2.0%
Sortino Ratio
0.71
Downside risk adjusted
Return/Volatility
0.91
Calmar Ratio
0.42
Return/Max Drawdown
Ulcer Index
5.78
Drawdown depth & duration
Martin Ratio
0.02
Return/Ulcer Index
Backtest Configuration
Initial Investment
$10,000
Final Value
$63,286.36
Backtest Period
2010-10-18 to 2026-04-10
15.5 years
Rebalancing
annual
Base Currency
USD