Mid-Cap Index Portfolio
Data updated: 2026-05-28
C000012160 — Mid-Cap Index Portfolio data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Mid Cap Blend / Core Equity · $3.17B AUM · 0.17% expense ratio · 12.6% 1-yr return. From SEC regulatory filings.
C000012160 Fund Overview
Mid-Cap Index Portfolio is a US mutual fund managed by Vanguard Variable Insurance Funds, categorised as United States Mid Cap Blend / Core Equity. 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: United States Mid Cap Blend / Core Equity
- Assets under management: $3.17B
- 1-year return: 12.6%
- SEC CIK: 0000857490
- SEC series ID: S000004404
- Share class ID: C000012160
C000012160 Holdings
Top 10 holdings of Mid-Cap Index Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Vertiv Holdings Co | 1.04% |
| Howmet Aerospace Inc | 1.01% |
| Western Digital Corp | 1.00% |
| Constellation Energy Corp | 0.94% |
| Seagate Technology Holdings PLC | 0.93% |
| Quanta Services Inc | 0.89% |
| SLB Ltd | 0.84% |
| Cummins Inc | 0.81% |
| Valero Energy Corp | 0.80% |
| Phillips 66 | 0.79% |
C000012160 Portfolio Allocation
Asset-class allocation of Mid-Cap Index Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.7% |
| Cash & Equivalents | 0.2% |
C000012160 Performance
Total returns for C000012160 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.6% |
| 1 year | 12.6% |
| 3 years (annualised) | 12.5% |
| 5 years (annualised) | 6.8% |
C000012160 Risk Information
Risk metrics for C000012160, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 10.1%
C000012160 Costs and Fees
C000012160 costs about $17 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.17%
- Gross expense ratio: 0.17%
- Portfolio turnover: 22%
- Brokerage commissions: 0.28 bps of average net assets (SEC N-CEN)
C000012160 Cashflows
Over the 12 months to 2026-03, Mid-Cap Index Portfolio had net inflows of $177.85M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $208.00M |
| 2026-02 | −$22.96M |
| 2026-01 | −$7.47M |
| 2025-12 | −$6.23M |
| 2025-11 | −$8.65M |
| 2025-10 | −$15.36M |
C000012160 Debt Constituents
No individual debt constituents are reported in Mid-Cap Index Portfolio's latest SEC N-PORT filing.
C000012160 Prospectus and SEC Filings
Official Mid-Cap Index Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Mid Cap Blend / Core Equity 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.