ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
52 hedge funds and large institutions have $72.3M invested in ProShares Trust UltraShort Lehman 20+ Year Treasury in 2025 Q4 according to their latest regulatory filings, with 13 funds opening new positions, 13 increasing their positions, 12 reducing their positions, and 9 closing their positions.
64% more call options, than puts
Call options by funds: $39.2M | Put options by funds: $23.8M
44% more first-time investments, than exits
New positions opened: 13 | Existing positions closed: 9
1.84% more ownership
Funds ownership: 26.04% → 27.88% (+1.8%)
8% more repeat investments, than reductions
Existing positions increased: 13 | Existing positions reduced: 12
0% more funds holding
Funds holding: 52 → 52 (0)
29% less capital invested
Capital invested by funds: $102M → $72.3M (-$30.1M)
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| 1 |
CM
CastleKnight Management
New York
|
+$3.25M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$2.97M |
| 3 |
HF
HRT Financial
New York
|
+$2.69M |
| 4 |
QC
Quadrature Capital
London,
United Kingdom
|
+$2.63M |
| 5 |
EF
Empowered Funds
Havertown,
Pennsylvania
|
+$2.08M |
Top Sellers
TBT Hedge Fund Activity: Q4 2025 in Review
52 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in ProShares Trust UltraShort Lehman 20+ Year Treasury (TBT) for Q4 2025, worth a combined $72.3M — down 29% from $102M a quarter earlier.
Buyers outnumbered sellers: 13 funds opened new TBT positions and 9 closed out — a net gain of 4 holders — while 13 added to existing stakes and 12 trimmed.
The largest buyer was CastleKnight Management, adding an estimated $3.25M. The largest seller was Renaissance Technologies, cutting an estimated $5.72M.
- 52 institutional investors held ProShares Trust UltraShort Lehman 20+ Year Treasury (TBT) as of Q4 2025, unchanged from Q3 2025.
- Funds reported $72.3M of ProShares Trust UltraShort Lehman 20+ Year Treasury stock for Q4 2025, down 29% quarter-over-quarter.
- 13 funds opened new ProShares Trust UltraShort Lehman 20+ Year Treasury positions in Q4 2025 and 9 closed out, a net change of +4 holders.
- The largest ProShares Trust UltraShort Lehman 20+ Year Treasury buyer in Q4 2025 was CastleKnight Management, an estimated $3.25M added.
- The largest ProShares Trust UltraShort Lehman 20+ Year Treasury seller in Q4 2025 was Renaissance Technologies, an estimated $5.72M sold.
Based on aggregated 13F filings for Q4 2025.