Asset Allocation
| Position | Category/Sector | Target Weight |
|---|---|---|
VIIIX Vanguard Institutional Index Fund Institutional Plus Shares | S&P 500, Large Cap Blend Equities | 50% |
VMCIX Vanguard Mid-Cap Index Fund Institutional Shares | Mid Cap Blend Equities | 50% |
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Performance Chart
The chart shows the growth of an initial investment of $10,000 in 401a_d, 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 401a_d returned 9.03% Year-To-Date and 13.59% 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 401a_d | 1.81% | 0.28% | 9.03% | 8.65% | 21.83% | 18.66% | 10.54% | 13.59% |
| Portfolio components: | ||||||||
VIIIX Vanguard Institutional Index Fund Institutional Plus Shares | 1.75% | -1.31% | 8.59% | 8.94% | 25.18% | 21.47% | 13.48% | 15.51% |
VMCIX Vanguard Mid-Cap Index Fund Institutional Shares | 1.86% | 1.98% | 9.39% | 8.27% | 18.41% | 15.77% | 7.58% | 11.62% |
Monthly Returns
Based on dividend-adjusted daily data since May 21, 1998, 401a_d's average daily return is +0.04%, while the average monthly return is +0.88%. At this rate, an investment would double in approximately 6.6 years.
Historically, 63% of months were positive and 37% were negative. The best month was Apr 2020 with a return of +13.6%, while the worst month was Oct 2008 at -19.4%. The longest winning streak lasted 9 consecutive months, and the longest losing streak was 5 months.
On a daily basis, 401a_d closed higher 54% of trading days. The best single day was Oct 13, 2008 with a return of +11.7%, while the worst single day was Mar 16, 2020 at -12.3%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1.77% | 1.30% | -5.40% | 9.10% | 3.69% | -1.16% | 9.03% | ||||||
| 2025 | 3.61% | -1.59% | -4.80% | -0.81% | 5.89% | 4.55% | 2.13% | 1.78% | 2.63% | 0.69% | 0.35% | -0.12% | 14.77% |
| 2024 | -0.15% | 5.18% | 3.73% | -4.42% | 3.85% | 1.52% | 2.63% | 2.48% | 2.34% | -0.67% | 7.08% | -4.13% | 20.48% |
| 2023 | 7.12% | -2.57% | 1.07% | 0.41% | -1.09% | 7.49% | 3.37% | -2.59% | -4.83% | -3.41% | 9.56% | 6.08% | 21.12% |
| 2022 | -6.52% | -2.01% | 3.22% | -8.39% | -0.07% | -8.83% | 9.42% | -3.53% | -9.54% | 8.31% | 5.87% | -5.56% | -18.41% |
| 2021 | -0.77% | 4.01% | 3.36% | 5.08% | 0.76% | 2.07% | 1.83% | 3.02% | -4.40% | 6.81% | -1.61% | 4.20% | 26.61% |
Benchmark Metrics
401a_d has an annualized alpha of 2.51%, beta of 1.01, and R2 of 0.97 versus S&P 500 Index. Calculated based on daily prices since May 21, 1998.
- This portfolio captured 109.76% of S&P 500 Index gains but only 97.72% of its losses - a favorable profile for investors.
- This portfolio generated an annualized alpha of 2.51% versus S&P 500 Index - delivering returns beyond what market exposure alone would predict.
- With beta of 1.01 and R2 of 0.97, this portfolio moves broadly in line with S&P 500 Index - much of its variation is explained by market exposure rather than independent behavior.
- Alpha
- 2.51%
- Beta
- 1.01
- R²
- 0.97
- Upside Capture
- 109.76%
- Downside Capture
- 97.72%
Expense Ratio
401a_d has an expense ratio of 0.03%, 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
401a_d ranks 39 for risk / return — below 39% 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 401a_d 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 | 1.74 | 1.86 | -0.12 |
| Sortino ratioReturn per unit of downside risk | 2.40 | 2.53 | -0.13 |
| Omega ratioGain probability vs. loss probability | 1.31 | 1.34 | -0.03 |
| Calmar ratioReturn relative to maximum drawdown | 2.59 | 2.53 | +0.05 |
| Martin ratioReturn relative to average drawdown | 11.18 | 11.37 | -0.19 |
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 |
|---|---|---|---|---|---|---|
VIIIX Vanguard Institutional Index Fund Institutional Plus Shares | 65 | 1.97 | 2.67 | 1.36 | 2.74 | 12.45 |
VMCIX Vanguard Mid-Cap Index Fund Institutional Shares | 34 | 1.38 | 1.97 | 1.24 | 2.15 | 8.09 |
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Dividends
Dividend yield
401a_d provided a 1.92% dividend yield over the last twelve months.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Portfolio | 1.92% | 1.82% | 2.58% | 2.09% | 2.50% | 2.95% | 2.26% | 2.17% | 2.14% | 1.60% | 1.92% | 1.97% |
| Portfolio components: | ||||||||||||
VIIIX Vanguard Institutional Index Fund Institutional Plus Shares | 2.48% | 2.11% | 3.66% | 2.66% | 3.39% | 4.79% | 3.07% | 2.86% | 2.45% | 1.84% | 2.38% | 2.47% |
VMCIX Vanguard Mid-Cap Index Fund Institutional Shares | 1.37% | 1.52% | 1.49% | 1.51% | 1.60% | 1.12% | 1.45% | 1.48% | 1.83% | 1.36% | 1.46% | 1.48% |
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 401a_d. 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 401a_d was 56.70%, occurring on Mar 9, 2009. Recovery took 539 trading sessions.
The current 401a_d drawdown is 1.95%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
Financial crisis2007–2009 | -56.70%Mar 2009 | 1y 7mo | 2y 1mo | 3y 9moJul 2007 - Apr 2011 |
Dot-com crash2000–2002 | -39.47%Oct 2002 | 2y 1mo | 2y 1mo | 4y 2moSep 2000 - Nov 2004 |
COVID crash2020 | -36.54%Mar 2020 | 1mo 2d | 5mo 6d | 6mo 8dFeb 2020 - Aug 2020 |
Bear market2022 | -25.21%Oct 2022 | 9mo 18d | 1y 3mo | 2y 1moDec 2021 - Feb 2024 |
1998 bear market1998 | -22.40%Oct 1998 | 2mo 20d | 2mo 16d | 5mo 6dJul 1998 - Dec 1998 |
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 2 assets, with an effective number of assets of 2.00, 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 | 1.04 | 1.03 | 1.02 | 1.01 | 1.01 |
The portfolio has a diversification ratio of 1.01, placing it in the bottom quartile across portfolios — positions are highly correlated. Consider adding assets from different classes or sectors to reduce risk.
401a_d correlation to the S&P 500 Index
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.94 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.95 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.97 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.97 |
Correlation (All Time) Calculated using the full available price history since May 21, 1998 | 0.97 |
Benchmark Correlations
Correlation vs. S&P 500 Index. VIIIX has the highest benchmark correlation at 1.00, while VMCIX has the lowest at 0.91.
Asset Correlations Table
Find what 401a_d is missing
See which holdings overlap, where 401a_d is concentrated, and which low-correlation assets could fill the gaps.
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