Total Bond Market Index Portfolio
Data updated: 2026-05-28
C000012151 — Total Bond Market Index Portfolio data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Intermediate Total / Aggregate Bond · $5.45B AUM · 0.14% expense ratio · 4.1% 1-yr return. From SEC regulatory filings.
C000012151 Fund Overview
Total Bond Market Index Portfolio is a US mutual fund managed by Vanguard Variable Insurance Funds, categorised as Intermediate Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Vanguard Variable Insurance Funds
- Category: Intermediate Total / Aggregate Bond
- Assets under management: $5.45B
- 1-year return: 4.1%
- SEC CIK: 0000857490
- SEC series ID: S000004395
- Share class ID: C000012151
C000012151 Holdings
Top 10 holdings of Total Bond Market Index Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Vanguard Cmt Funds-Vanguard Market Liquidity Fund | 1.08% |
| United States Treasury Note/Bond | 0.41% |
| United States Treasury Note/Bond | 0.41% |
| United States Treasury Note/Bond | 0.40% |
| United States Treasury Note/Bond | 0.40% |
| United States Treasury Note/Bond | 0.40% |
| United States Treasury Note/Bond | 0.39% |
| United States Treasury Note/Bond | 0.39% |
| United States Treasury Note/Bond | 0.38% |
| United States Treasury Note/Bond | 0.37% |
C000012151 Portfolio Allocation
Asset-class allocation of Total Bond Market Index Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 77.5% |
| Securitized | 21.2% |
| Cash & Equivalents | 1.1% |
C000012151 Performance
Total returns for C000012151 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.0% |
| 1 year | 4.1% |
| 3 years (annualised) | 3.5% |
| 5 years (annualised) | 0.2% |
C000012151 Risk Information
Risk metrics for C000012151, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.4%
C000012151 Costs and Fees
C000012151 costs about $14 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.14%
- Gross expense ratio: 0.14%
- Portfolio turnover: 45%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
C000012151 Cashflows
Over the 12 months to 2026-03, Total Bond Market Index Portfolio had net inflows of $723.80M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $166.20M |
| 2026-02 | −$44.04M |
| 2026-01 | $338.79M |
| 2025-12 | $49.14M |
| 2025-11 | $10.58M |
| 2025-10 | $19.65M |
C000012151 Debt Constituents
Largest debt holdings of Total Bond Market Index Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury Note/Bond | 0.41% |
| United States Treasury Note/Bond | 0.41% |
| United States Treasury Note/Bond | 0.40% |
| United States Treasury Note/Bond | 0.40% |
| United States Treasury Note/Bond | 0.40% |
| United States Treasury Note/Bond | 0.39% |
| United States Treasury Note/Bond | 0.39% |
| United States Treasury Note/Bond | 0.38% |
| United States Treasury Note/Bond | 0.37% |
| United States Treasury Note/Bond | 0.36% |
C000012151 Prospectus and SEC Filings
Official Total Bond Market Index Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Intermediate Total / Aggregate Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.