PortfoliosLab logoPortfoliosLab logo
Vanguard Robo
Performance
Return for Risk
Dividends
Drawdowns
Volatility
Diversification

Asset Allocation


S&P 500 Index

Portfolio Optimizer

Find the right asset allocation for Vanguard Robo

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 Optimizer

Performance

Performance Chart

The chart shows the growth of an initial investment of $10,000 in Vanguard Robo, 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.


Loading charts...

Returns By Period

As of Jun 20, 2026, the Vanguard Robo returned 8.81% Year-To-Date and 9.43% of annualized return in the last 10 years.


Position1D1MYTD6M1Y3Y*5Y*10Y*
Benchmark
S&P 500 Index
0.00%-0.71%8.39%8.57%24.33%18.94%12.24%13.54%
Portfolio
Vanguard Robo
0.87%1.47%8.81%9.14%21.04%14.58%7.78%9.43%
BND
Vanguard Total Bond Market ETF
0.27%0.90%0.65%0.69%4.66%4.05%0.04%1.60%
BNDX
Vanguard Total International Bond ETF
0.08%1.01%1.21%1.40%2.25%4.33%0.43%1.74%
VTI
Vanguard Total Stock Market ETF
1.16%1.34%10.70%10.70%27.58%20.67%12.86%15.07%
VXUS
Vanguard Total International Stock ETF
1.17%3.05%15.66%16.85%34.05%18.62%9.33%10.00%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Monthly Returns

Based on dividend-adjusted daily data since Jun 4, 2013, Vanguard Robo's average daily return is +0.03%, while the average monthly return is +0.72%. At this rate, an investment would double in approximately 8.1 years.

Historically, 68% of months were positive and 32% were negative. The best month was Nov 2020 with a return of +8.3%, while the worst month was Mar 2020 at -10.1%. The longest winning streak lasted 15 consecutive months, and the longest losing streak was 4 months.

On a daily basis, Vanguard Robo closed higher 55% of trading days. The best single day was Mar 13, 2020 with a return of +6.0%, while the worst single day was Mar 12, 2020 at -8.0%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20262.19%1.72%-4.73%6.28%3.27%0.11%8.81%
20252.26%0.32%-2.30%0.70%3.59%3.53%0.61%2.33%2.59%1.54%0.34%0.52%17.11%
2024-0.10%2.51%2.49%-3.06%3.37%1.30%2.22%1.88%1.94%-2.12%3.10%-2.45%11.33%
20236.05%-2.87%2.72%1.08%-1.00%3.81%2.44%-2.08%-3.59%-2.31%7.32%4.63%16.60%
2022-3.79%-2.13%0.29%-6.58%0.43%-5.87%5.56%-3.69%-7.58%3.89%6.60%-3.40%-16.16%
2021-0.34%1.32%1.68%2.93%1.02%1.17%0.84%1.44%-3.05%3.38%-1.55%2.32%11.53%

Benchmark Metrics

Vanguard Robo has an annualized alpha of 0.71%, beta of 0.62, and R2 of 0.92 versus S&P 500 Index. Calculated based on daily prices since June 04, 2013.

  • This portfolio participated in 70.19% of S&P 500 Index downside but only 63.41% of its upside - more exposed to losses than it benefited from rallies.
  • Beta of 0.62 indicates this portfolio moves significantly less than S&P 500 Index - a genuinely defensive profile with reduced participation in both market rallies and downturns.

Alpha
0.71%
Beta
0.62
0.92
Upside Capture
63.41%
Downside Capture
70.19%

Expense Ratio

Vanguard Robo has an expense ratio of 0.04%, 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

Vanguard Robo ranks 52 for risk / return — on par with similar Portfolios. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.


Vanguard Robo Risk / Return Rank: 5252
Overall Rank
Vanguard Robo Sharpe Ratio Rank: 5050
Sharpe Ratio Rank
Vanguard Robo Sortino Ratio Rank: 5555
Sortino Ratio Rank
Vanguard Robo Omega Ratio Rank: 5757
Omega Ratio Rank
Vanguard Robo Calmar Ratio Rank: 4545
Calmar Ratio Rank
Vanguard Robo Martin Ratio Rank: 5252
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

Return / Risk — by metrics

The table below presents risk-adjusted performance metrics for Vanguard Robo 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.


PortfolioBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

2.16

1.94

+0.22

Sortino ratioReturn per unit of downside risk

3.05

2.65

+0.40

Omega ratioGain probability vs. loss probability

1.41

1.35

+0.05

Calmar ratioReturn relative to maximum drawdown

2.94

2.66

+0.28

Martin ratioReturn relative to average drawdown

12.62

11.86

+0.76


How much return does each position deliver for the risk it carries? Higher values mean better reward for the risk taken.

PositionRisk / Return RankSharpe ratioSortino ratioOmega ratioCalmar ratioMartin ratio
BND
Vanguard Total Bond Market ETF
36
1.271.911.221.775.10
BNDX
Vanguard Total International Bond ETF
18
0.660.951.120.772.13
VTI
Vanguard Total Stock Market ETF
68
2.152.911.393.0713.75
VXUS
Vanguard Total International Stock ETF
64
2.062.811.382.9411.32

Sharpe Ratio

The Sharpe ratio helps investors understand how much return they're getting for the level of risk taken. A higher Sharpe ratio indicates better risk-adjusted performance, meaning more reward for each unit of risk. Learn how to interpret the Sharpe ratio.

The current Vanguard Robo Sharpe ratio is 2.16 as of Jun 20, 2026 (the value is recalculated daily), calculated over the past 12 months.

Compared to the broad market, where average Sharpe ratios range from 1.66 to 2.57, this portfolio's current Sharpe ratio falls between the 25th and 75th percentiles. This indicates that its risk-adjusted performance is in line with the majority of portfolios, suggesting a balanced approach to risk and return—likely suitable for a wide range of investors.

The chart below shows the rolling Sharpe ratio of Vanguard Robo compared to the selected benchmark. This view highlights how the investment's risk-adjusted performance has changed over time.


Loading charts...

Dividends

Dividend yield

Vanguard Robo provided a 2.46% dividend yield over the last twelve months.


PositionTTM20252024202320222021202020192018201720162015
Portfolio2.46%2.64%2.68%2.60%2.24%2.17%1.81%2.50%2.62%2.23%2.32%2.31%
BND
Vanguard Total Bond Market ETF
3.95%3.86%3.67%3.09%2.60%2.12%2.38%2.72%2.81%2.54%2.51%2.57%
BNDX
Vanguard Total International Bond ETF
4.46%4.39%4.18%4.42%1.51%3.74%1.11%3.40%3.01%2.23%1.89%1.63%
VTI
Vanguard Total Stock Market ETF
1.02%1.12%1.27%1.44%1.66%1.21%1.42%1.78%2.04%1.71%1.92%1.98%
VXUS
Vanguard Total International Stock ETF
2.52%3.18%3.37%3.24%3.09%3.10%2.14%3.06%3.18%2.73%2.93%2.83%

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.


Loading charts...

Worst Drawdowns

The table below displays the maximum drawdowns of the Vanguard Robo. 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 Vanguard Robo was 23.50%, occurring on Mar 23, 2020. Recovery took 89 trading sessions.

The current Vanguard Robo drawdown is 0.37%.


Related event

Drawdown

Fall

Recovery

Underwater

COVID crash2020
-23.50%Mar 2020
1mo 2d4mo 8d
5mo 10dFeb 2020 - Jul 2020
Bear market2022
-22.82%Oct 2022
11mo 9d1y 4mo
2y 3moNov 2021 - Mar 2024
Rate-hike selloffLate 2018
-12.46%Dec 2018
10mo 29d3mo 12d
1y 2moJan 2018 - Apr 2019
2016 correction2016
-11.75%Feb 2016
9mo 20d5mo 4d
1y 2moApr 2015 - Jul 2016
2025 selloff2025
-10.73%Apr 2025
1mo 18d1mo 7d
2mo 25dFeb 2025 - May 2025

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


Loading charts...

Diversification

Diversification Metrics


Number of Effective Assets

The portfolio contains 4 assets, with an effective number of assets of 3.39, reflecting the diversification based on asset allocation. Your capital is well-distributed across most of your holdings, with only mild concentration in a few names. True diversification also depends on the correlations between assets — check the diversification ratio below.


Diversification Ratio
1Y
3Y
5Y
10Y
All Time
Diversification Ratio

1.11

1.16

1.16

1.15

1.15

The portfolio has a diversification ratio of 1.15, placing it in the bottom quartile across portfolios — positions are highly correlated. Consider adding assets from different classes or sectors to reduce risk.

Vanguard Robo correlation to the S&P 500 Index

Vanguard Robo has a 0.94 correlation to S&P 500 Index over the trailing 12 months. This section compares each holding's correlation to the benchmark and to the portfolio.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.94

Correlation (3Y)
Calculated over the trailing 3-year period

0.92

Correlation (5Y)
Calculated over the trailing 5-year period

0.93

Correlation (10Y)
Calculated over the trailing 10-year period

0.94

Correlation (All Time)
Calculated using the full available price history since Jun 4, 2013

0.94


Benchmark Correlations

Correlation vs. S&P 500 Index. VTI has the highest benchmark correlation at 0.99, while BND has the lowest at -0.00.

BND
-0.00
BNDX
0.02
VXUS
0.80
VTI
0.99

Portfolio Correlations

Correlation vs. Vanguard Robo. VTI has the highest portfolio correlation at 0.95, while BNDX has the lowest at 0.14.

BNDX
0.14
BND
0.14
VXUS
0.92
VTI
0.95

Asset Correlations Table

The table below displays the correlation coefficients between the individual components of the portfolio, the entire portfolio, and the chosen benchmark.

BNDBNDXVXUSVTI
BND1.000.730.05-0.00
BNDX0.731.000.040.02
VXUS0.050.041.000.80
VTI-0.000.020.801.00
The correlation results are calculated based on daily price changes starting from Jun 4, 2013
Diversification Analysis

Find what Vanguard Robo is missing

See which holdings overlap, where Vanguard Robo is concentrated, and which low-correlation assets could fill the gaps.

Analyze Diversification