STATE STR SPDR S&P 500 ETF T (SPY) Institutional Ownership & Top Holders
The most recent SEC Form 13F filings (Q2 2026) show 18 hedge funds and institutional investors holding a combined 2.1M shares of STATE STR SPDR S&P 500 ETF T (SPY), valued at $1.6B. The median portfolio weight is 0.2%.
Quarterly institutional ownership changes in SPY show net selling, with the combined position decreasing by 1.2M shares (36.9%) from the previous quarter.
Among 13F filers, the funds with the highest portfolio allocation to SPY are Trustees of Columbia University in the City of New York (98.7% of its 13F portfolio), Naman Capital (57.2%), and Passaic Partners (34.4%). In Q2 2026, Naman Capital made the largest position increase (+24.2%), while RK Capital Management made the largest reduction (-15.3%).
Top 10 Institutional Holders in STATE STR SPDR S&P 500 ETF T (SPY), Ranked by Portfolio Weight
Based on the latest SEC Form 13F filings (Q2 2026).
| # | Fund | Shares | Market Value | Portfolio Weight |
|---|---|---|---|---|
| 1 | Trustees of Columbia University in the City of New York | 618,565 | $461.9M | 98.7% |
| 2 | Naman Capital | 247,568 | $184.9M | 57.2% |
| 3 | Passaic Partners | 481,148 | $359.3M | 34.4% |
| 4 | JANA | 342,965 | $256.1M | 13.5% |
| 5 | Senator | 246,000 | $183.7M | 6.7% |
| 6 | George Kaiser Family Foundation | 71,473 | $53.4M | 5.1% |
| 7 | ParaFi Capital | 1,961 | $1.5M | 0.5% |
| 8 | EMORY UNIVERSITY | 861 | $643K | 0.4% |
| 9 | ThornTree Capital Partners | 2,401 | $1.8M | 0.2% |
| 10 | Pentwater Capital Management | 40,000 | $29.9M | 0.2% |
- 18Institutional investors
- 2,076,754Shares held (disclosed)
- $1.6B13F market value
- 0.2%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 ActivityQ2 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
- Naman Capital+24.2% · +65,123 shares
- Senator+6.6% · +243,000 shares
- George Kaiser Family Foundation+2.2% · +31,890 shares
Top sellers
- RK Capital Management-15.3% · -9,686 shares
- One William Street Capital Management-9.4% · -7,500 shares
- BRIGADE CAPITAL MANAGEMENT-6.9% · -15,000 shares
Options Activity
- Total calls5,260,000 (-275,000)
- Total puts11,302,300 (-4,435,900)
Ownership Statistics
- Funds holding
- 18
- Median weight
- 0.2%
- Largest holder
- Trustees of Columbia University in the City of New York · 98.7%
- Smallest holder
- Harris Associates · 0.0%
- Shares held
- 2,076,754 (-1,214,115)
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 | 618,565 | $461.9M | 98.7% |
| 2 | Naman Capital | 247,568 | $184.9M | 57.2% |
| 3 | Passaic Partners | 481,148 | $359.3M | 34.4% |
| 4 | JANA | 342,965 | $256.1M | 13.5% |
| 5 | Senator | 246,000 | $183.7M | 6.7% |
| 6 | George Kaiser Family Foundation | 71,473 | $53.4M | 5.1% |
| 7 | ParaFi Capital | 1,961 | $1.5M | 0.5% |
| 8 | EMORY UNIVERSITY | 861 | $643.0K | 0.4% |
| 9 | ThornTree Capital Partners | 2,401 | $1.8M | 0.2% |
| 10 | Pentwater Capital Management | 40,000 | $29.9M | 0.2% |
| 11 | UTIMCO - The University of Texas | 1,878 | $1.4M | 0.2% |
| 12 | Giverny Capital | 2,294 | $1.7M | 0.1% |
| 13 | Mairs & Power | 8,279 | $6.2M | 0.1% |
| 14 | Yacktman Asset Management | 3,558 | $2.7M | 0.0% |
| 15 | Patient Capital Management | 1,060 | $791.6K | 0.0% |
| 16 | Polen Capital Management | 4,018 | $3.0M | 0.0% |
| 17 | RK Capital Management | 577 | $430.9K | 0.0% |
| 18 | Harris Associates | 2,148 | $1.6M | 0.0% |
Institutional Investor Count Over Time
Number of institutional investors disclosing a long position in STATE STR SPDR S&P 500 ETF T (SPY) each reporting quarter. Sourced from SEC Form 13F-HR filings.
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: 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: We capture long positions in Section 13(f) securities for STATE STR SPDR S&P 500 ETF T (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.
- 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: 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 , Naman Capital , and Passaic Partners as of Q2 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.