- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 37
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 29 listed it in both
- Shares listed
- 49,086,149
- combined, among listed positions
- Reported value
- $31.9bn
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 18 buyers (opened or added shares) and 23 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +640,487.
Managers listing SPY in Q1 2026
37 of 37 holders
Largest increases and reductions, by shares
Increases
- Jane Street Group LLCexisting position · 20,289,599 shares now+10,317,407
- Walleye Capital LLCexisting position · 1,636,152 shares now+1,393,628
- Tudor Investment Corpexisting position · 1,119,113 shares now+674,583
- Susquehanna International Group LLPexisting position · 10,645,680 shares now+632,633
- Squarepoint Ops LLCnew position · 243,417 shares now+243,417
Reductions
- D. E. Shaw & Co.existing position · 745,510 shares now-4,701,040
- Millennium Management LLCexisting position · 622,922 shares now-3,024,116
- Citadel Advisors LLCexisting position · 347,775 shares now-1,814,273
- Schonfeld Strategic Advisors LLCexisting position · 325,390 shares now-1,662,730
- Verition Fund Management LLCexisting position · 835,554 shares now-431,812
New positions and exits
New (4)
Exited (4)
- Man Group PLCwas $419m
- Renaissance Technologies LLCwas $99m
- Discovery Capital Management LLCwas $1.0m
- Woodline Partners LPwas $567k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2013 | 16 | $13.5bn | n.a. | n.a. |
| Q3 2013 | 14 | $8.0bn | n.a. | n.a. |
| Q4 2013 | 14 | $8.6bn | n.a. | n.a. |
| Q1 2014 | 17 | $8.3bn | n.a. | n.a. |
| Q2 2014 | 18 | $13.0bn | n.a. | n.a. |
| Q3 2014 | 17 | $14.8bn | n.a. | n.a. |
| Q4 2014 | 20 | $17.8bn | n.a. | n.a. |
| Q1 2015 | 19 | $15.6bn | n.a. | n.a. |
| Q2 2015 | 18 | $11.5bn | n.a. | n.a. |
| Q3 2015 | 15 | $11.4bn | n.a. | n.a. |
| Q4 2015 | 20 | $12.6bn | n.a. | n.a. |
| Q1 2016 | 23 | $13.6bn | n.a. | n.a. |
| Q2 2016 | 19 | $5.5bn | n.a. | n.a. |
| Q3 2016 | 25 | $8.9bn | n.a. | n.a. |
| Q4 2016 | 18 | $7.1bn | n.a. | n.a. |
| Q1 2017 | 18 | $7.7bn | n.a. | n.a. |
| Q2 2017 | 18 | $7.3bn | n.a. | n.a. |
| Q3 2017 | 20 | $6.8bn | n.a. | n.a. |
| Q4 2017 | 21 | $10.7bn | n.a. | n.a. |
| Q1 2018 | 21 | $9.0bn | n.a. | n.a. |
| Q2 2018 | 22 | $7.9bn | n.a. | n.a. |
| Q3 2018 | 22 | $7.9bn | n.a. | n.a. |
| Q4 2018 | 21 | $7.0bn | n.a. | n.a. |
| Q1 2019 | 17 | $6.6bn | n.a. | n.a. |
| Q2 2019 | 21 | $10.9bn | n.a. | n.a. |
| Q3 2019 | 26 | $11.1bn | n.a. | n.a. |
| Q4 2019 | 26 | $19.8bn | n.a. | n.a. |
| Q1 2020 | 26 | $15.2bn | n.a. | n.a. |
| Q2 2020 | 22 | $13.1bn | n.a. | n.a. |
| Q3 2020 | 24 | $13.1bn | n.a. | n.a. |
| Q4 2020 | 23 | $17.4bn | n.a. | n.a. |
| Q1 2021 | 24 | $13.8bn | n.a. | n.a. |
| Q2 2021 | 22 | $15.7bn | n.a. | n.a. |
| Q3 2021 | 24 | $16.6bn | n.a. | n.a. |
| Q4 2021 | 29 | $22.3bn | n.a. | n.a. |
| Q1 2022 | 22 | $17.3bn | n.a. | n.a. |
| Q2 2022 | 21 | $13.6bn | n.a. | n.a. |
| Q3 2022 | 29 | $14.0bn | n.a. | n.a. |
| Q4 2022 | 29 | $14.1bn | n.a. | n.a. |
| Q1 2023 | 25 | $15.8bn | n.a. | n.a. |
| Q2 2023 | 29 | $17.6bn | n.a. | n.a. |
| Q3 2023 | 28 | $27.8bn | n.a. | n.a. |
| Q4 2023 | 35 | $26.6bn | 24 | 11 |
| Q1 2024 | 30 | $25.9bn | 7 | 24 |
| Q2 2024 | 31 | $22.9bn | 17 | 13 |
| Q3 2024 | 32 | $28.2bn | 20 | 12 |
| Q4 2024 | 36 | $31.8bn | 21 | 17 |
| Q1 2025 | 32 | $27.0bn | 14 | 21 |
| Q2 2025 | 35 | $28.6bn | 16 | 21 |
| Q3 2025 | 34 | $25.4bn | 22 | 14 |
| Q4 2025 | 32 | $32.9bn | 25 | 14 |
| Q1 2026 | 32 | $31.8bn | 18 | 23 |
| Q2 2026 | 32 | $71.4bn | 24 | 19 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own SPY, latest filings →Back to the 13F Explorer →