iShares S&P 500 Index K
WFSPX
NASDAQ- -
USD
- -
- -
Capital Structure
FRC
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in mil. unless spec.Working Capital
FRC
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in mil. unless spec.Growth Rates
FRC
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in mil. unless spec.Quarterly Revenue
FRC
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in mil. unless spec.Quarterly Earnings Per Share
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in mil. unless spec.Quarterly Dividends Per Share
FRC
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in mil. unless spec.- Sector
- Financial Services
- Industry
- Asset Management
- Address
- San Francisco CA 94105 San Francisco CA United States of America 94105
- IPO Date
- Jul 2, 1993
- CIK
- 0000893818
- Website
- ishares.com
- Similar Companies
- Business
- iShares S&P 500 Index Fund Class K (WFSPX) is an open-end mutual fund managed by BlackRock Fund Advisors that seeks to provide investment results corresponding to the total return performance of the S&P 500 Index, comprising approximately 500 large-cap U.S. common stocks traded principally on the New York Stock Exchange or Nasdaq; the fund operates as a feeder fund, investing all of its assets in the S&P 500 Stock Master Portfolio of the Master Investment Portfolio (MIP), which employs a passive management strategy to replicate the index by holding securities in proportions matching their index weights. The fund offers Class K shares with a net expense ratio of 0.03%, a minimum initial investment of $5 million, daily pricing, and no front-end or deferred loads; its portfolio is heavily weighted toward technology (approximately 35.6%), financial services (13.2%), consumer cyclical (10.7%), communication services (10.5%), and healthcare (8.9%), with top holdings including NVIDIA Corporation (8.42%), Apple Inc. (6.83%), Microsoft Corporation (6.56%), Alphabet Inc. (5.03%), and Amazon.com Inc. (4.04%). Launched on July 30, 1993, and domiciled in the United States, the fund targets institutional and high-net-worth investors seeking large-blend exposure, with total net assets of approximately $54.1 billion and share class assets of $19.73 billion as of recent data. Headquartered in New York, NY, through BlackRock, the fund maintains operations primarily in the U.S. market, with over 99.6% allocation to U.S. stocks. In recent developments, the fund added new portfolio managers Peter Sietsema, Matt Waldron, and Steven White, each effective April 1, 2025, alongside existing manager Jennifer Hsui. It updated its investment policy to explicitly indicate a diversified status under the Investment Company Act of 1940 and made prospective changes to summary prospectuses effective June 30, 2025, including management and fee-related disclosures. The underlying S&P 500 Index underwent constituent changes in 2025, such as additions including Robinhood Markets and AppLovin, reflecting ongoing rebalancing that the fund mirrors through its master portfolio structure.