S&P 500 Index Master Portfolio
Master Investment Portfolio
Index fund

Where this fund's issuers are based

91% of weight resolved to an issuer; bonds/private/foreign unresolved issuers excluded
As of March 31, 2026 · N-PORT

Click a bar to list the issuers behind it, ranked by portfolio weight.

State of incorporation (US issuers)

Principal office state (US)

Issuer principal offices

95% of portfolio weight mapped · dot area ∝ portfolio weight

Fund contact details

  • FundS&P 500 Index Master Portfolio
  • Trust / registrantMaster Investment Portfolio (CIK 915092)
  • Principal office 400 HOWARD STREET, SAN FRANCISCO, CA 94105
  • Phone617 937 5524

Machine-readable: JSON · Markdown. Programmatic access via the agent surface.