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Vanguard Short-Term Bond Index Fund Institutional ...
Performance
Return for Risk
Dividends
Drawdowns
Volatility

Fund Info

ISIN
US9219377770
CUSIP
921937777
Issuer
Vanguard
Inception Date
Sep 27, 2011
Min. Investment
$5,000,000
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

Performance Chart

The chart shows the growth of an initial investment of $10,000 in Vanguard Short-Term Bond Index Fund Institutional Shares, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.


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S&P 500 Index

Returns By Period

Vanguard Short-Term Bond Index Fund Institutional Shares (VBITX) has returned -0.32% so far this year and 3.67% over the past 12 months. Over the last ten years, VBITX has returned 1.87% per year, falling short of the S&P 500 Index benchmark, which averaged 12.16% annually.


Vanguard Short-Term Bond Index Fund Institutional Shares

1D
0.20%
1M
-1.25%
YTD
-0.32%
6M
0.87%
1Y
3.67%
3Y*
3.99%
5Y*
1.51%
10Y*
1.87%

Benchmark (S&P 500 Index)

1D
2.91%
1M
-5.09%
YTD
-4.63%
6M
-2.39%
1Y
16.33%
3Y*
16.69%
5Y*
10.18%
10Y*
12.16%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Monthly Returns

Based on dividend-adjusted daily data since Sep 27, 2011, VBITX's average daily return is +0.16%, while the average monthly return is +0.14%. At this rate, your investment would double in approximately 41.3 years.

Historically, 61% of months were positive and 39% were negative. The best month was Mar 2023 with a return of +1.9%, while the worst month was Mar 2022 at -1.9%. The longest winning streak lasted 11 consecutive months, and the longest losing streak was 9 months.

On a daily basis, VBITX closed higher 32% of trading days. The best single day was Sep 21, 2017 with a return of +374.1%, while the worst single day was Sep 22, 2017 at -78.9%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.15%0.79%-1.25%-0.32%
20250.51%0.98%0.52%0.90%-0.25%0.81%-0.06%1.12%0.23%0.43%0.52%0.24%6.11%
20240.36%-0.64%0.47%-0.83%0.99%0.68%1.50%0.98%0.97%-1.06%0.40%-0.08%3.77%
20231.28%-1.25%1.91%0.30%-0.51%-0.61%0.31%0.22%-0.38%-0.20%1.77%1.56%4.43%
2022-1.04%-0.59%-1.89%-0.98%0.70%-0.87%1.02%-1.35%-1.77%-0.26%1.38%-0.04%-5.61%
2021-0.09%-0.46%-0.26%0.29%0.19%-0.19%0.38%-0.09%-0.28%-0.47%-0.10%-0.11%-1.18%

Benchmark Metrics

Vanguard Short-Term Bond Index Fund Institutional Shares has an annualized alpha of 49.10%, beta of -0.07, and R² of 0.00 versus S&P 500 Index. Calculated based on daily prices since September 28, 2011.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (5.85%) than losses (1.20%) — typical of diversified or defensive assets.
  • Beta of -0.07 may look defensive, but with R² of 0.00 this fund 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 fund's risk.
  • R² of 0.00 means this fund moves largely independently of S&P 500 Index — capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

Alpha
49.10%
Beta
-0.07
0.00
Upside Capture
5.85%
Downside Capture
1.20%

Expense Ratio

VBITX has an expense ratio of 0.05%, which is considered low.


Return for Risk

Risk / Return Rank

VBITX ranks 89 for risk / return — in the top 89% of mutual funds on our site. This means strong returns relative to risk — exactly what professional investors look for. Well-suited for investors who want to maximize return per unit of risk.


VBITX Risk / Return Rank: 8989
Overall Rank
VBITX Sharpe Ratio Rank: 8686
Sharpe Ratio Rank
VBITX Sortino Ratio Rank: 9292
Sortino Ratio Rank
VBITX Omega Ratio Rank: 8484
Omega Ratio Rank
VBITX Calmar Ratio Rank: 9292
Calmar Ratio Rank
VBITX Martin Ratio Rank: 9090
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 present risk-adjusted performance metrics for Vanguard Short-Term Bond Index Fund Institutional Shares (VBITX) and compare them to a chosen benchmark (S&P 500 Index).


VBITXBenchmarkDifference

Sharpe ratio

Return per unit of total volatility

1.71

0.90

+0.81

Sortino ratio

Return per unit of downside risk

2.80

1.39

+1.42

Omega ratio

Gain probability vs. loss probability

1.35

1.21

+0.14

Calmar ratio

Return relative to maximum drawdown

2.79

1.40

+1.39

Martin ratio

Return relative to average drawdown

10.38

6.61

+3.77

Explore VBITX risk-adjusted metrics in detail

Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.

Dividends

Dividend History

Vanguard Short-Term Bond Index Fund Institutional Shares provided a 3.62% dividend yield over the last twelve months, with an annual payout of $0.37 per share. The fund has been increasing its distributions for 4 consecutive years.


1.50%2.00%2.50%3.00%3.50%4.00%$0.00$0.10$0.20$0.30$0.4020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.37$0.40$0.34$0.20$0.15$0.13$0.20$0.24$0.21$0.18$0.16$0.15

Dividend yield

3.62%3.85%3.39%1.99%1.48%1.24%1.80%2.26%2.03%1.69%1.52%1.44%

Monthly Dividends

The table displays the monthly dividend distributions for Vanguard Short-Term Bond Index Fund Institutional Shares. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.04$0.03$0.00$0.07
2025$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.04$0.40
2024$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.34
2023$0.02$0.02$0.02$0.00$0.02$0.02$0.02$0.02$0.02$0.00$0.02$0.03$0.20
2022$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.02$0.15
2021$0.00$0.00$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.04$0.13

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 Vanguard Short-Term Bond Index Fund Institutional Shares. 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 Short-Term Bond Index Fund Institutional Shares was 79.18%, occurring on May 16, 2018. The portfolio has not yet recovered.

The current Vanguard Short-Term Bond Index Fund Institutional Shares drawdown is 74.94%.


Depth

Start

To Bottom

Bottom

To Recover

End

Total

-79.18%Sep 22, 2017163May 16, 2018
-76.38%Aug 25, 201718Sep 20, 20171Sep 21, 201719
-1.83%Jul 6, 2016115Dec 15, 2016115Jun 2, 2017230
-1.49%May 3, 201387Sep 5, 201352Nov 18, 2013139
-1.04%Oct 5, 201560Dec 29, 201521Jan 29, 201681

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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