Asset Allocation
| Position | Category/Sector | Target Weight |
|---|---|---|
TLT iShares 20+ Year Treasury Bond ETF | Government Bonds, Long-Term Bond | 20% |
SPY State Street SPDR S&P 500 ETF | S&P 500 | 20% |
^TNX Cboe 10-Year Treasury Note Yield Index | 20% | |
^TYX Treasury Yield 30 Years | 20% | |
BRK-B Berkshire Hathaway Inc. | Financial Services | 20% |
Find the right asset allocation for Base11
Add portfolio to the optimizer to find optimal allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio OptimizerPerformance
Performance Chart
The chart shows the growth of an initial investment of $10,000 in Base11, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends. The portfolio is rebalanced Every 3 months.
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Returns By Period
As of Jun 13, 2026, the Base11 returned 3.65% Year-To-Date and 12.01% of annualized return in the last 10 years.
| Position | 1D | 1M | YTD | 6M | 1Y | 3Y* | 5Y* | 10Y* |
|---|---|---|---|---|---|---|---|---|
Benchmark S&P 500 Index | 0.50% | -0.93% | 8.56% | 8.85% | 24.33% | 19.37% | 11.84% | 13.61% |
Portfolio Base11 | 0.41% | 0.25% | 3.65% | 3.65% | 6.56% | 10.35% | 13.94% | 12.01% |
| Portfolio components: | ||||||||
^TNX Cboe 10-Year Treasury Note Yield Index | 0.54% | 0.58% | 7.78% | 6.99% | 1.42% | 5.34% | 25.14% | 10.79% |
^TYX Treasury Yield 30 Years | 0.48% | -0.74% | 2.79% | 2.41% | 1.22% | 8.08% | 18.25% | 7.45% |
BRK-B Berkshire Hathaway Inc. | 0.71% | 1.07% | -2.67% | -2.06% | 0.35% | 13.30% | 11.27% | 13.22% |
SPY State Street SPDR S&P 500 ETF | 0.54% | -0.86% | 9.07% | 9.42% | 25.67% | 20.86% | 13.36% | 15.42% |
TLT iShares 20+ Year Treasury Bond ETF | -0.24% | 1.40% | 0.27% | 0.45% | 3.88% | -1.38% | -6.53% | -1.75% |
Monthly Returns
Based on dividend-adjusted daily data since Jul 26, 2002, Base11's average daily return is +0.03%, while the average monthly return is +0.65%. At this rate, an investment would double in approximately 8.9 years.
Historically, 62% of months were positive and 38% were negative. The best month was Feb 2021 with a return of +11.8%, while the worst month was Mar 2020 at -11.2%. The longest winning streak lasted 9 consecutive months, and the longest losing streak was 4 months.
On a daily basis, Base11 closed higher 53% of trading days. The best single day was Mar 10, 2020 with a return of +7.6%, while the worst single day was Mar 9, 2020 at -8.2%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -0.08% | -0.63% | -0.07% | 2.50% | 1.61% | 0.31% | 3.65% | ||||||
| 2025 | 1.41% | 0.14% | -0.11% | -0.45% | 1.70% | -0.59% | 0.71% | 1.21% | 0.32% | -0.74% | 1.13% | 0.48% | 5.27% |
| 2024 | 2.90% | 4.22% | 1.01% | 1.07% | 0.89% | -0.80% | 0.81% | 1.02% | -0.66% | 2.54% | 1.82% | 1.03% | 16.94% |
| 2023 | -0.49% | 1.42% | -1.50% | 1.39% | 0.97% | 3.62% | 2.36% | 1.14% | 1.95% | 0.60% | 0.28% | -1.54% | 10.55% |
| 2022 | 4.68% | 1.26% | 10.45% | 3.51% | -0.22% | -2.10% | 1.32% | 1.65% | 2.76% | 6.34% | 0.18% | -0.73% | 32.49% |
| 2021 | 5.07% | 11.78% | 8.64% | 0.70% | 0.36% | -2.85% | -3.12% | 2.33% | 2.13% | 1.83% | -3.27% | 4.26% | 30.28% |
Benchmark Metrics
Base11 has an annualized alpha of 3.04%, beta of 0.47, and R2 of 0.42 versus S&P 500 Index. Calculated based on daily prices since July 26, 2002.
- This portfolio participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (44.75%) than losses (37.39%) - typical of diversified or defensive assets.
- Beta of 0.47 may look defensive, but with R2 of 0.42 this portfolio is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this portfolio's risk.
- R2 of 0.42 means the benchmark explains less than half of this portfolio's behavior - treat beta with caution or consider switching to a more representative benchmark.
- Alpha
- 3.04%
- Beta
- 0.47
- R²
- 0.42
- Upside Capture
- 44.75%
- Downside Capture
- 37.39%
Expense Ratio
Base11 has an expense ratio of 0.05%, which is considered low. Below, you can find the expense ratios of the portfolio's funds side by side and easily compare their relative costs.
Return for Risk
Risk / Return Rank
Base11 ranks 30 for risk / return — below 30% of Portfolios on our site. The returns aren't fully compensating for the risk involved. This isn't necessarily a dealbreaker, but factor it into your decision — especially if you're risk-averse.
Return / Risk — by metrics
The table below presents risk-adjusted performance metrics for Base11 and compares them with S&P 500 Index.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| Portfolio | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | 1.38 | 1.86 | -0.48 |
| Sortino ratioReturn per unit of downside risk | 1.88 | 2.53 | -0.65 |
| Omega ratioGain probability vs. loss probability | 1.25 | 1.34 | -0.09 |
| Calmar ratioReturn relative to maximum drawdown | 2.95 | 2.53 | +0.42 |
| Martin ratioReturn relative to average drawdown | 7.84 | 11.37 | -3.53 |
How much return does each position deliver for the risk it carries? Higher values mean better reward for the risk taken.
| Position | Risk / Return Rank | Sharpe ratio | Sortino ratio | Omega ratio | Calmar ratio | Martin ratio |
|---|---|---|---|---|---|---|
^TNX Cboe 10-Year Treasury Note Yield Index | 17 | 0.20 | 0.38 | 1.04 | 0.25 | 0.45 |
^TYX Treasury Yield 30 Years | 20 | 0.23 | 0.41 | 1.05 | 0.29 | 0.62 |
BRK-B Berkshire Hathaway Inc. | 38 | -0.02 | 0.08 | 1.01 | -0.02 | -0.05 |
SPY State Street SPDR S&P 500 ETF | 67 | 1.98 | 2.68 | 1.36 | 2.74 | 12.39 |
TLT iShares 20+ Year Treasury Bond ETF | 13 | 0.30 | 0.50 | 1.06 | 0.38 | 0.92 |
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Dividends
Dividend yield
Base11 provided a 1.11% dividend yield over the last twelve months.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Portfolio | 1.11% | 1.10% | 1.10% | 0.96% | 0.86% | 0.54% | 0.60% | 0.80% | 0.93% | 0.85% | 0.93% | 0.93% |
| Portfolio components: | ||||||||||||
^TNX Cboe 10-Year Treasury Note Yield Index | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
^TYX Treasury Yield 30 Years | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
BRK-B Berkshire Hathaway Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SPY State Street SPDR S&P 500 ETF | 1.00% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
TLT iShares 20+ Year Treasury Bond ETF | 4.56% | 4.43% | 4.30% | 3.38% | 2.67% | 1.50% | 1.50% | 2.27% | 2.63% | 2.43% | 2.60% | 2.61% |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the Base11. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the Base11 was 34.70%, occurring on Apr 3, 2020. Recovery took 221 trading sessions.
The current Base11 drawdown is 0.57%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
COVID crash2020 | -34.70%Apr 2020 | 1y 5mo | 10mo 22d | 2y 4moOct 2018 - Feb 2021 |
Financial crisis2007–2009 | -28.56%Dec 2008 | 1y 19d | 1y 2mo | 2y 2moDec 2007 - Mar 2010 |
2011 correction2011 | -19.95%Sep 2011 | 7mo 15d | 1y 5mo | 2y 28dFeb 2011 - Mar 2013 |
2016 correction2016 | -12.88%Feb 2016 | 7mo 17d | 9mo 2d | 1y 4moJun 2015 - Nov 2016 |
2010 correction2010 | -12.47%Aug 2010 | 4mo 22d | 3mo 20d | 8mo 12dApr 2010 - Dec 2010 |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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Diversification
Diversification Metrics
Number of Effective Assets
The portfolio contains 5 assets, with an effective number of assets of 5.00, reflecting the diversification based on asset allocation. Your capital is spread almost evenly across your holdings, indicating a well-balanced allocation. Note that true diversification also depends on the correlations between assets — check the diversification ratio below.
Diversification Ratio
1Y | 3Y | 5Y | 10Y | All Time | |
|---|---|---|---|---|---|
Diversification Ratio | 2.62 | 2.27 | 1.97 | 1.57 | 1.65 |
The portfolio has a diversification ratio of 1.65, in line with the typical range across portfolios. There's room to improve by adding less correlated assets.
Base11 correlation to the S&P 500 Index
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.34 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.38 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.43 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.49 |
Correlation (All Time) Calculated using the full available price history since Jul 26, 2002 | 0.58 |
Benchmark Correlations
Correlation vs. S&P 500 Index. SPY has the highest benchmark correlation at 0.99, while TLT has the lowest at -0.25.
Asset Correlations Table
Find what Base11 is missing
See which holdings overlap, where Base11 is concentrated, and which low-correlation assets could fill the gaps.
Analyze Diversification