ProShares UltraPro Short S&P 500
SPXU
44 hedge funds and large institutions have $87.5M invested in ProShares UltraPro Short S&P 500 in 2026 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 8 increasing their positions, 4 reducing their positions, and 13 closing their positions.
100% more repeat investments, than reductions
Existing positions increased: 8 | Existing positions reduced: 4
91% more capital invested
Capital invested by funds: $45.8M → $87.5M (+$41.7M)
85% more first-time investments, than exits
New positions opened: 24 | Existing positions closed: 13
29% more funds holding
Funds holding: 34 → 44 (+10)
7.42% more ownership
Funds ownership: 5.66% → 13.08% (+7.4%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
11% less call options, than puts
Call options by funds: $120M | Put options by funds: $134M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
IMC Chicago
Chicago,
Illinois
|
+$16M |
| 2 |
RAM
Revere Asset Management
Dallas,
Texas
|
+$8.77M |
| 3 |
HF
HRT Financial
New York
|
+$5.87M |
| 4 |
Jane Street
New York
|
+$3.53M |
| 5 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$3.35M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
QC
Quadrature Capital
London,
United Kingdom
|
-$5.75M |
| 2 |
G
Gainplan
Bloomfield Hills,
Michigan
|
-$2.49M |
| 3 |
FTUS
Flow Traders U.S.
New York
|
-$1.81M |
| 4 |
GS
GTS Securities
Miami,
Florida
|
-$1.6M |
| 5 |
CCM
Capstone Capital Management
Hong Kong,
|
-$497K |
SPXU Hedge Fund Activity: Q1 2026 in Review
44 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in ProShares UltraPro Short S&P 500 (SPXU) for Q1 2026, worth a combined $87.5M — up 91% from $45.8M a quarter earlier.
Buyers outnumbered sellers: 24 funds opened new SPXU positions and 13 closed out — a net gain of 11 holders — while 8 added to existing stakes and 4 trimmed.
The largest buyer was IMC Chicago, opening a new position worth an estimated $16M. The largest seller was Quadrature Capital, exiting entirely with an estimated $5.75M sold.
- 44 institutional investors held ProShares UltraPro Short S&P 500 (SPXU) as of Q1 2026, up from 34 in Q4 2025.
- Funds reported $87.5M of ProShares UltraPro Short S&P 500 stock for Q1 2026, up 91% quarter-over-quarter.
- 24 funds opened new ProShares UltraPro Short S&P 500 positions in Q1 2026 and 13 closed out, a net change of +11 holders.
- The largest ProShares UltraPro Short S&P 500 buyer in Q1 2026 was IMC Chicago, an estimated $16M added.
- The largest ProShares UltraPro Short S&P 500 seller in Q1 2026 was Quadrature Capital, an estimated $5.75M sold.
Based on aggregated 13F filings for Q1 2026.