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ISIN
US9219371088
CUSIP
921937108
Issuer
Vanguard
Inception Date
Dec 11, 1986
Min. Investment
$3,000
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

VBMFX Performance Chart

Vanguard Total Bond Market Index Fund (VBMFX) is up 0.1% since the beginning of the year. VBMFX is currently trading at $10 per share. Investors who bought $1,000 worth of VBMFX shares 5 years ago would now be looking at an investment worth $996.


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S&P 500 Index

Returns By Period

Vanguard Total Bond Market Index Fund (VBMFX) has returned 0.06% so far this year and 4.02% over the past 12 months. Over the last ten years, VBMFX has returned 1.38% per year, falling short of the S&P 500 Index benchmark, which averaged 13.71% annually.


Vanguard Total Bond Market Index Fund

1D
-0.31%
1M
0.65%
YTD
0.06%
6M
0.39%
1Y
4.02%
3Y*
3.82%
5Y*
-0.08%
10Y*
1.38%

Benchmark (S&P 500 Index)

1D
-1.44%
1M
-1.45%
YTD
7.60%
6M
6.59%
1Y
22.24%
3Y*
19.20%
5Y*
11.54%
10Y*
13.71%
*Multi-year figures are annualized to reflect compound growth (CAGR)

VBMFX Monthly Returns History

Based on dividend-adjusted daily data since Dec 11, 1986, VBMFX's average daily return is +0.02%, while the average monthly return is +0.36%. At this rate, an investment would double in approximately 16.1 years.

Historically, 65% of months were positive and 35% were negative. The best month was Nov 2023 with a return of +4.5%, while the worst month was Sep 2022 at -4.2%. The longest winning streak lasted 11 consecutive months, and the longest losing streak was 6 months.

On a daily basis, VBMFX closed higher 44% of trading days. The best single day was Oct 22, 1987 with a return of +4.2%, while the worst single day was Mar 17, 2020 at -1.7%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.22%1.53%-1.70%0.12%0.33%-0.41%0.06%
20250.64%2.09%0.01%0.42%-0.71%1.57%-0.30%1.16%1.04%0.63%0.62%-0.29%7.05%
2024-0.23%-1.39%0.82%-2.44%1.70%0.93%2.31%1.33%1.31%-2.44%1.14%-1.76%1.15%
20233.19%-2.55%2.56%0.55%-1.09%-0.37%-0.05%-0.58%-2.49%-1.57%4.51%3.70%5.62%
2022-2.17%-1.13%-2.82%-3.85%0.58%-1.50%2.31%-2.77%-4.18%-1.38%3.69%-0.61%-13.25%
2021-0.95%-1.65%-1.38%0.96%0.24%0.77%1.21%-0.20%-0.91%-0.03%0.33%-0.41%-2.04%

Benchmark Metrics

Vanguard Total Bond Market Index Fund has an annualized alpha of 4.56%, beta of -0.01, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since December 11, 1986.

  • This fund captured 12.95% of S&P 500 Index gains and tended to rise during its downturns (downside capture of -3.10%) - a profile typical of hedging or uncorrelated assets.
  • Beta of -0.01 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
4.56%
Beta
-0.01
0.00
Upside Capture
12.95%
Downside Capture
-3.10%

Expense Ratio

VBMFX has an expense ratio of 0.15%, which is considered low.


Return for Risk

Risk / Return Rank

VBMFX ranks 17 for risk / return — in the bottom 17% of mutual funds on our site. This means you're taking on significantly more risk than the returns justify. Consider whether the potential upside is worth the volatility, or explore alternatives with better risk / return profiles.


VBMFX Risk / Return Rank: 1717
Overall Rank
VBMFX Sharpe Ratio Rank: 1717
Sharpe Ratio Rank
VBMFX Sortino Ratio Rank: 1717
Sortino Ratio Rank
VBMFX Omega Ratio Rank: 1616
Omega Ratio Rank
VBMFX Calmar Ratio Rank: 1919
Calmar Ratio Rank
VBMFX Martin Ratio Rank: 1717
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 Total Bond Market Index Fund (VBMFX) and compare them to 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.


VBMFXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

-0.69

Sortino ratioReturn per unit of downside risk

-0.80

Omega ratioGain probability vs. loss probability

1.19

1.32

-0.13

Calmar ratioReturn relative to maximum drawdown

1.46

2.46

-0.99

Martin ratioReturn relative to average drawdown

4.14

10.92

-6.78

Dividends

Dividend History

Vanguard Total Bond Market Index Fund provided a 3.88% 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.


2.00%2.50%3.00%3.50%$0.00$0.10$0.20$0.30$0.4020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.37$0.37$0.34$0.29$0.24$0.19$0.27$0.29$0.26$0.26$0.26$0.29

Dividend yield

3.88%3.76%3.57%2.99%2.49%1.72%2.31%2.63%2.47%2.45%2.43%2.71%

Monthly Dividends

The table displays the monthly dividend distributions for Vanguard Total Bond Market Index Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.03$0.03$0.03$0.03$0.03$0.00$0.16
2025$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.37
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$0.02$0.02$0.02$0.03$0.03$0.02$0.03$0.03$0.03$0.29
2022$0.02$0.02$0.03$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.24
2021$0.00$0.00$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.03$0.19

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 Total Bond Market Index Fund. 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 Total Bond Market Index Fund was 19.08%, occurring on Oct 24, 2022. The portfolio has not yet recovered.

The current Vanguard Total Bond Market Index Fund drawdown is 3.21%.


Related event

Drawdown

Fall

Recovery

Underwater

Bear market2022
-19.08%Oct 2022
2y 2mo
5y 10moAug 2020 - now
Black Monday1987
-12.84%Oct 1987
8mo 26d3y 1mo
3y 9moJan 1987 - Nov 1990
COVID crash2020
-6.53%Mar 2020
10d2mo 23d
3mo 3dMar 2020 - Jun 2020
1994 pullback1994
-6.46%May 1994
6mo 23d9mo 26d
1y 4moOct 1993 - Mar 1995
Financial crisis2007–2009
-5.43%Oct 2008
1mo 20d1mo 17d
3mo 7dSep 2008 - Dec 2008

Drawdown Indicators


VBMFXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-19.08%

-56.78%

+37.70%

Max Drawdown (1Y)

Largest decline over 1 year

-2.91%

-9.10%

+6.19%

Max Drawdown (3Y)

Largest decline over 3 years

-6.02%

-18.90%

+12.88%

Max Drawdown (5Y)

Largest decline over 5 years

-18.24%

-25.43%

+7.19%

Max Drawdown (10Y)

Largest decline over 10 years

-19.08%

-33.92%

+14.84%

Current Drawdown

Current decline from peak

-3.21%

-3.21%

0.00%

Average Drawdown

Average peak-to-trough decline

-2.70%

-10.71%

+8.01%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.03%

2.04%

-1.01%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

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Add Vanguard Total Bond Market Index Fund to a portfolio and analyze allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.

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