Vanguard Total Bond Market Index Fund Investor Shares (VBMFX) Fund Overview
Educational signal · not a buy or sell recommendation · How to read this
Beta 1.00: the stock has moved roughly in step with the S&P 500.
For informational purposes only. Not financial advice. Machine-generated analysis by Stock Expert AI — model gemini-2.0-flash, generated Mar 18, 2026. Editorial oversight is systemic, not page-by-page. Editorially accountable: Sedat ANAK, Founder and Editor-in-Chief. Data sources: Financial Modeling Prep, Yahoo Finance, SEC EDGAR
Quick AnswerVanguard Total Bond Market Index Fund Investor Shares (VBMFX) trades at $9.22. Vanguard Total Bond Market Index Fund (VBMFX) tracks the performance of a broad range of investment-grade U.S. bonds.
Price as of · Last analyzed: Mar 18, 2026Analyst Coverage for VBMFX: VBMFX does not currently have published analyst price targets in our coverage universe. This is common for smaller-cap names with limited Wall Street coverage.
Vanguard Total Bond Market Index Fund Investor Shares Company Overview
Vanguard Total Bond Market Index Fund mirrors the performance of the U.S. investment-grade bond market, encompassing government, corporate, and international dollar-denominated bonds. It offers investors diversified exposure to fixed-income securities, focusing on maturities greater than one year and maintaining a beta of 1.00.
What Is the Investment Thesis for VBMFX?
VBMFX offers a straightforward investment thesis centered on mirroring the performance of the broad U.S. investment-grade bond market. The fund's primary value driver is its ability to provide diversified exposure to a wide array of fixed-income securities, including government, corporate, and mortgage-backed bonds. A key growth catalyst is the continued demand for passive investment strategies, as investors seek low-cost, diversified exposure to asset classes. With a beta of 1.00, VBMFX is expected to move in line with the overall bond market. However, potential risks include interest rate fluctuations, which can impact bond values, and credit spread widening, which can negatively affect corporate bond performance.
Based on FMP financials and quantitative analysis
VBMFX Key Highlights
VBMFX tracks the Bloomberg Barclays U.S. Aggregate Float Adjusted Index, providing broad market exposure.
- The fund invests in investment-grade bonds, mitigating credit risk.
- VBMFX uses a sampling strategy to replicate the index, offering cost-effective management.
- At least 80% of the fund's assets are invested in bonds held in the index, ensuring high correlation.
- The fund's beta is 1.00, indicating its price movements generally mirror the overall bond market.
Who Are VBMFX's Competitors?
VBMFX is benchmarked below against 3 industry peers on price, market cap, and our AI MoonshotScore.
| Company | Price | Change | Market Cap | MoonshotScore |
|---|---|---|---|---|
| AGG iShares Core U.S. Aggregate Bond ETF | $94.25 | -0.18% | $133B | — |
| BND Vanguard Total Bond Market ETF | $69.94 | -0.21% | $385B | — |
| FXNAX Fidelity U.S. Bond Index Fund | $9.98 | -0.20% | $67.2B | — |
AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance
What Are VBMFX's Key Strengths?
Low expense ratio
- Broad diversification
- Passive investment strategy
- Strong brand reputation
What Are VBMFX's Weaknesses?
Vulnerable to interest rate risk
- Limited upside potential compared to equities
- Tracking error relative to the index
- No active management to mitigate risks
What Are the Key Risks for VBMFX?
Rising interest rates could negatively impact bond values.
- Credit spread widening could reduce returns on corporate bonds.
- Inflation could erode the real value of fixed income investments.
- Changes in the composition of the underlying index could affect fund performance.
What Are VBMFX's Competitive Advantages?
- Low cost structure: VBMFX offers a competitive expense ratio, making it a noteworthy option for cost-conscious investors.
- Brand reputation: Vanguard is a well-respected and trusted name in the investment management industry.
- Scale: VBMFX benefits from Vanguard's large asset base, allowing it to achieve economies of scale.
- Index tracking: The fund's passive approach provides a predictable and transparent investment strategy.
What Does VBMFX Do?
The Vanguard Total Bond Market Index Fund (VBMFX) is designed to track the performance of the Bloomberg Barclays U.S. Aggregate Float Adjusted Index, a benchmark representing a wide spectrum of public, investment-grade, taxable, fixed income securities in the United States. These securities include U.S. government, corporate, and international dollar-denominated bonds, alongside mortgage-backed and asset-backed securities. The fund focuses on bonds with maturities of more than one year, providing investors with exposure to intermediate and long-term fixed-income assets. VBMFX employs a sampling strategy, selecting investments to replicate the index's overall characteristics. At least 80% of the fund's assets are consistently invested in bonds held within the index, ensuring a high degree of correlation with the target benchmark. The fund's objective is to provide a return that closely matches the index, offering a cost-effective way to access the broad U.S. investment-grade bond market.
What Products and Services Does VBMFX Offer?
- Tracks the performance of the Bloomberg Barclays U.S. Aggregate Float Adjusted Index.
- Invests in a diversified portfolio of U.S. investment-grade bonds.
- Includes government, corporate, and mortgage-backed securities.
- Focuses on bonds with maturities of more than one year.
- Employs a sampling strategy to replicate the index.
- Maintains at least 80% of its assets in index bonds.
How Does VBMFX Make Money?
- Generates revenue through management fees charged to investors.
- Aims to replicate the performance of the underlying bond index.
- Offers a low-cost, passive investment strategy.
- Provides diversified exposure to the U.S. investment-grade bond market.
What Industry Does VBMFX Operate In?
VBMFX operates within the fixed income market, which is influenced by macroeconomic factors such as interest rates, inflation, and economic growth. The competitive landscape includes other bond index funds and actively managed bond funds. VBMFX's strength lies in its low-cost, passive approach, appealing to investors seeking broad market exposure. The fund's performance is closely tied to the overall health and stability of the U.S. bond market. Demand for bond funds generally increases during periods of economic uncertainty or when investors seek to diversify their portfolios.
Who Are VBMFX's Key Customers?
- Individual investors seeking fixed income exposure.
- Institutional investors looking for diversified bond portfolios.
- Retirement savers seeking stable returns and capital preservation.
- Financial advisors building client portfolios.
Research confidence
Thin evidence — scoring coverage unknown. Treat this as a starting point, not a conclusion.
- ● Scoring coverage unknown
- ● Price is current
- ● No filing on record
- ● No analyst coverage
- ● This is a fund, not an operating company
MoonshotScore History
Recorded daily since 2026-08-23 · 41 snapshots
| 2026-08-23 | 46 |
| 2026-08-31 | 46 |
| 2026-09-08 | 46 |
| 2026-09-16 | 46 |
| 2026-09-24 | 46 |
| 2026-10-04 | 46 |
What changed?
The score has stayed at 46.
Over the same 30 days the stock moved -2.7%.
VBMFX Financials
Bull Case vs Bear Case
Bull Case
- Low expense ratio
- Broad diversification
- Passive investment strategy
- Strong brand reputation
Bear Case
- Vulnerable to interest rate risk
- Limited upside potential compared to equities
- Tracking error relative to the index
- No active management to mitigate risks
AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · March 2026
VBMFX Latest News
-
A 1-Point Rise in Bond Yields Could Swamp BND’s 4.7% Yield
24/7 Wall St. · Sep 17, 2026
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BND’s 0.03% Fee Hides the Real Cost: Every Dollar of Its 4% Yield Is Taxed as Ordinary Income
24/7 Wall St. · Aug 31, 2026
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The Bond ETF Tax Mistake Costing Retirees With a $1 Million 60/40 Portfolio ~$6,600 a Year
24/7 Wall St. · Aug 29, 2026
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We Put $750,000 Into an Annuity for a Guaranteed $4,200 Monthly Check. Then Realized We Wiped Out Our Children’s $610,000 Inheritance
24/7 Wall St. · Aug 27, 2026
VBMFX Analyst Consensus
Consensus Rating
Aggregated Buy/Hold/Sell recommendations collected by Financial Modeling Prep for VBMFX.
Price Targets
Wall Street price target analysis for VBMFX.
VBMFX MoonshotScore
MoonshotScore is Stock Expert AI's proprietary 0-100 research rating, not a buy or sell recommendation. No MoonshotScore is published for VBMFX; grades run from A+ (80-100) to F (below 30).
Classification
Industry Fixed IncomeLatest News
A 1-Point Rise in Bond Yields Could Swamp BND’s 4.7% Yield
BND’s 0.03% Fee Hides the Real Cost: Every Dollar of Its 4% Yield Is Taxed as Ordinary Income
The Bond ETF Tax Mistake Costing Retirees With a $1 Million 60/40 Portfolio ~$6,600 a Year
We Put $750,000 Into an Annuity for a Guaranteed $4,200 Monthly Check. Then Realized We Wiped Out Our Children’s $610,000 Inheritance
What Investors Ask About Vanguard Total Bond Market Index Fund Investor Shares (VBMFX)
What does Vanguard Total Bond Market Index Fund do?
Vanguard Total Bond Market Index Fund (VBMFX) is a passively managed fund designed to mirror the performance of the Bloomberg Barclays U.S. Aggregate Float Adjusted Index.
What do analysts say about VBMFX stock?
VBMFX is generally viewed as a stable and reliable investment option for those seeking broad exposure to the U.S. investment-grade bond market. Analysts often highlight its low expense ratio and strong tracking performance as key advantages. The fund's beta of 1.00 suggests that its price movements closely mirror the overall bond market.
What are the main risks for VBMFX?
The primary risk for VBMFX is interest rate risk. As interest rates rise, the value of existing bonds in the fund's portfolio can decline, leading to potential losses for investors. Another risk is credit risk, although VBMFX primarily invests in investment-grade bonds, which have a lower risk of default.
Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.
Official Resources
MoonshotScore is not published for this security.
Data provided for informational purposes only.
- The information provided is based on available data and general knowledge of the fund and its underlying index.
- Investment decisions should be based on individual circumstances and risk tolerance.