Active Stock Master Portfolio
Data updated: 2026-05-28
C000012004 — Active Stock Master Portfolio data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Large Cap Blend / Core Equity · $2.98B AUM · 18.5% 1-yr return. From SEC regulatory filings.
C000012004 Fund Overview
Active Stock Master Portfolio is a US mutual fund managed by Master Investment Portfolio, categorised as United States Large 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: Master Investment Portfolio
- Category: United States Large Cap Blend / Core Equity
- Assets under management: $2.98B
- 1-year return: 18.5%
- SEC CIK: 0000915092
- SEC series ID: S000004282
- Share class ID: C000012004
C000012004 Holdings
Top 10 holdings of Active Stock Master Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Blackrock Cash Funds Treasury Sl Agency Shares | 7.63% |
| BlackRock Funds III | 6.27% |
| Citibank NA | 4.53% |
| NVIDIA Corp | 2.96% |
| Apple Inc | 2.64% |
| Taiwan Semiconductor Manufacturing Co Ltd | 2.10% |
| Microsoft Corp | 1.99% |
| Amazon.com Inc | 1.51% |
| Alphabet Inc | 1.29% |
| Broadcom Inc | 1.04% |
C000012004 Portfolio Allocation
Asset-class allocation of Active Stock Master Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 90.2% |
| Cash & Equivalents | 13.9% |
C000012004 Performance
Total returns for C000012004 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -3.5% |
| 1 year | 18.5% |
| 3 years (annualised) | 18.9% |
| 5 years (annualised) | 11.9% |
C000012004 Risk Information
Risk metrics for C000012004, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 9.8%
C000012004 Costs and Fees
- Brokerage commissions: 5.02 bps of average net assets (SEC N-CEN)
C000012004 Cashflows
Over the 12 months to 2026-03, Active Stock Master Portfolio had net outflows of $39.10M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $20.02M |
| 2026-02 | −$18.82M |
| 2026-01 | $5.49M |
| 2025-12 | $7.52M |
| 2025-11 | $1.74M |
| 2025-10 | $1.17M |
C000012004 Debt Constituents
No individual debt constituents are reported in Active Stock Master Portfolio's latest SEC N-PORT filing.
C000012004 Prospectus and SEC Filings
Official Active Stock Master Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Large 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.