STATE STREET SPDR S&P 500 ETF (SPY) — Institutional Holders & Hedge Fund Ownership
STATE STREET SPDR S&P 500 ETF (SPY) institutional ownership: 17 hedge funds and institutional investors, holding 2.2M shares ($1.44B), as of Q1 2026, per SEC Form 13F-HR filings.
Quarterly 13F filings reveal which hedge funds, family offices, and institutional investors hold STATE STREET SPDR S&P 500 ETF (SPY) — and how their positions changed versus the prior quarter. The data covers every 13F filer that disclosed a SPY position — top holders by portfolio weight, biggest quarterly buyers and sellers, and positioning shifts.
The top SPY shareholders by portfolio weight are Trustees of Columbia University in the City of New York (99.97%), Stanford University (5.60%), and Miller Value Partners (5.10%). In Q1 2026, Stanford University made the largest position increase (+5.60%).
Top 10 Institutional Holders of STATE STREET SPDR S&P 500 ETF (SPY) — Q1 2026
| # | Fund | Shares | Market Value | Portfolio Weight |
|---|---|---|---|---|
| 1 | Trustees of Columbia University in the City of New York | 1,369,552 | $890.7M | 99.97% |
| 2 | Stanford University | 73,085 | $47.5M | 5.60% |
| 3 | Miller Value Partners | 30,044 | $19.5M | 5.10% |
| 4 | George Kaiser Family Foundation | 39,583 | $25.7M | 2.92% |
| 5 | Pentwater Capital Management | 580,000 | $377.2M | 2.68% |
| 6 | Meritage Group | 51,554 | $33.5M | 1.27% |
| 7 | University of Illinois Foundation | 4,995 | $3.3M | 0.67% |
| 8 | EMORY UNIVERSITY | 831 | $540K | 0.20% |
| 9 | Mairs & Power | 27,180 | $17.7M | 0.18% |
| 10 | UTIMCO - The University of Texas | 1,878 | $1.2M | 0.18% |
- 17Hedge funds holding
- 2,217,528Shares held (disclosed)
- $1.44B13F market value
- 0.18%Median portfolio weight
Ownership History
Quarter-by-quarter share count, market value, and portfolio conviction weight (up to 5 of the heaviest weight-by-portfolio funds) of SPY. Sourced from 13F filings; reflects long equity positions only.
Quarter-over-Quarter ActivityQ1 2026
The biggest weight-increase and weight-decrease changes among funds that hold SPY. Deltas compare the selected filing to the previous reporting quarter.
Top buyers
- Stanford University+5.60% · +73,085 shares
- Miller Value Partners+5.10% · +30,044 shares
- Pentwater Capital Management+2.63% · +570,000 shares
Top sellers
- University of Illinois Foundation-47.79% · -201,303 shares
- Hillman Capital Management-2.86% · -6,676 shares
- Yacktman Asset Management-0.27% · -28,323 shares
Options Activity
- Total calls755,000 (+250,000)
- Total puts6,713,900 (+525,400)
Ownership Statistics
- Funds holding
- 17
- Median weight
- 0.18%
- Largest holder
- Trustees of Columbia University in the City of New York · 99.97%
- Smallest holder
- Harris Associates · 0.01%
- Shares held
- 2,217,528 (+656,827)
All Institutional HoldersSortable · searchable
All institutional investors (Max 50) holding SPY in the selected quarter. Click a fund name to drill into its full 13F portfolio.
| 1 | Trustees of Columbia University in the City of New York | 1,369,552 | $890.7M | 99.97% |
| 2 | Stanford University | 73,085 | $47.5M | 5.60% |
| 3 | Miller Value Partners | 30,044 | $19.5M | 5.10% |
| 4 | George Kaiser Family Foundation | 39,583 | $25.7M | 2.92% |
| 5 | Pentwater Capital Management | 580,000 | $377.2M | 2.68% |
| 6 | Meritage Group | 51,554 | $33.5M | 1.27% |
| 7 | University of Illinois Foundation | 4,995 | $3.3M | 0.67% |
| 8 | EMORY UNIVERSITY | 831 | $540.4K | 0.20% |
| 9 | Mairs & Power | 27,180 | $17.7M | 0.18% |
| 10 | UTIMCO - The University of Texas | 1,878 | $1.2M | 0.18% |
| 11 | Senator | 3,000 | $2.0M | 0.09% |
| 12 | Giverny Capital | 2,474 | $1.6M | 0.06% |
| 13 | Yacktman Asset Management | 3,768 | $2.5M | 0.03% |
| 14 | Patient Capital Management | 1,115 | $725.6K | 0.03% |
| 15 | Polen Capital Management | 3,757 | $2.4M | 0.02% |
| 16 | First Eagle Investment Management | 17,000 | $11.1M | 0.01% |
| 17 | Harris Associates | 7,712 | $5.0M | 0.01% |
Methodology & FAQ
Methodology: How We Track SPY Institutional Holdings
Our data is systematically aggregated directly from quarterly Form 13F-HR disclosures submitted to the U.S. Securities and Exchange Commission (SEC).
- Who Must File (Reporting Threshold): This dataset includes filings from U.S. institutional investment managers, hedge funds, mutual funds, university endowments, and family offices managing at least $100 million in Section 13(f) securities (including equities, options, convertibles, ETFs, and warrants).
- What is Included (Data Scope): We capture long positions in Section 13(f) securities for STATE STREET SPDR S&P 500 ETF (SPY). By SEC regulation, 13F filings do not require the disclosure of short positions, non-U.S. holdings, or OTC derivatives. Listed options are excluded from portfolio weight calculations to ensure comparability across filers.
- Portfolio Weight Explained (Metric Definition): “Portfolio Weight” shows how much of a fund's total reported 13F portfolio value (excluding listed options) is allocated to SPY on the specific reporting date.
- How to Use This Data (Interpretation): Quarter-over-quarter changes in shares and portfolio weight reflect a combination of active trading and market price movements. These are descriptive metrics of fund allocation, not explicit buy or sell signals.
How do you measure hedge fund conviction and institutional concentration in SPY?
We evaluate fund conviction by looking at portfolio weight rather than just absolute share count. By tracking how the largest holders —such as Trustees of Columbia University in the City of New York , Stanford University , and Miller Value Partners as of Q1 2026— change their position sizing quarter-over-quarter, we help investors distinguish between deliberate position sizing changes and passive mark-to-market drift.
Does the SPY ownership data include short interest or options?
SEC Form 13F mandates the disclosure of long positions in Section 13(f) securities, which includes equities and listed options (put and call contracts), but excludes short interest, swaps, and OTC derivatives by regulatory design. On this platform, listed options are excluded from portfolio weight calculations to ensure comparability across filers.
Are family offices and university endowments included in this SPY data?
Yes. In addition to traditional hedge funds and large asset managers, any institutional entity exercising investment discretion over at least $100 million in Section 13(f) securities must file a Form 13F. This explicitly includes single-family offices and university endowments. If a qualifying family office or endowment holds SPY stock, their allocation is systematically aggregated alongside traditional fund data.
When is the institutional ownership data updated, and is there a reporting lag?
Institutional investment managers are required to file their Form 13F within 45 days after the end of a calendar quarter (the standard “T+45” window). Our platform re-ingests new filings from the SEC EDGAR database on a nightly cycle, typically within 24–48 hours of publication, providing a point-in-time snapshot of reported consensus positioning for SPY as of each filing date.