S&P 500 Index Master Portfolio is a registered fund series of Master Investment Portfolio (series S000004285). Net assets $51.9B as of 2026-03-31. Index fund.
Showing 15 of 200 holdings by value.
| Holding | Ticker | Value | % of fund |
|---|---|---|---|
| NVIDIA Corp | — | $3.9B | 744.03% |
| Apple Inc | — | $3.4B | 654.14% |
| Microsoft Corp | — | $2.5B | 482.58% |
| Amazon.com Inc | — | $1.9B | 357.19% |
| Alphabet Inc | — | $1.5B | 293.93% |
| Broadcom Inc | — | $1.3B | 257.25% |
| Alphabet Inc | — | $1.2B | 235.53% |
| Meta Platforms Inc | — | $1.1B | 219.31% |
| Tesla Inc | — | $952.8M | 183.56% |
| Berkshire Hathaway Inc | — | $800.8M | 154.27% |
| JPMorgan Chase & Co | — | $722.8M | 139.24% |
| Eli Lilly & Co | — | $664.2M | 127.96% |
| Exxon Mobil Corp | — | $646.1M | 124.48% |
| Johnson & Johnson | — | $536.8M | 103.42% |
| iShares Core S&P 500 ETF | — | $504.5M | 97.18% |
| Report date | Net assets |
|---|---|
| 2026-03-31 | $51.9B |
| 2025-12-31 | $54.1B |
| 2025-09-30 | $52.6B |
| 2025-06-30 | $50.1B |
| 2025-03-31 | $45.1B |
| 2024-12-31 | $46.5B |
| 2024-09-30 | $45.2B |
| 2024-06-30 | $42.3B |