MBIA
MBI
120 hedge funds and large institutions have $172M invested in MBIA in 2025 Q4 according to their latest regulatory filings, with 17 funds opening new positions, 40 increasing their positions, 35 reducing their positions, and 17 closing their positions.
1,516% more call options, than puts
Call options by funds: $9.37M | Put options by funds: $580K
14% more repeat investments, than reductions
Existing positions increased: 40 | Existing positions reduced: 35
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0% more first-time investments, than exits
New positions opened: 17 | Existing positions closed: 17
1% less funds holding
Funds holding: 121 → 120 (-1)
1.27% less ownership
Funds ownership: 48.72% → 47.45% (-1.3%)
6% less capital invested
Capital invested by funds: $183M → $172M (-$11.6M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Tudor Investment Corp
Stamford,
Connecticut
|
+$1.47M |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$1.29M |
| 3 |
WHCM
Wolf Hill Capital Management
Greenwich,
Connecticut
|
+$799K |
| 4 |
Renaissance Technologies
New York
|
+$591K |
| 5 |
Walleye Capital
New York
|
+$582K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$2.82M |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$2.12M |
| 3 |
PFMOSF
Philadelphia Financial Management of San Francisco
San Francisco,
California
|
-$1.58M |
| 4 |
Simplex Trading
Chicago,
Illinois
|
-$1.36M |
| 5 |
GCP
GSA Capital Partners
London,
United Kingdom
|
-$996K |
MBI Hedge Fund Activity: Q4 2025 in Review
120 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in MBIA (MBI) for Q4 2025, worth a combined $172M — down 6.3% from $183M a quarter earlier.
Fund positioning in MBI was balanced in Q4 2025: 17 funds opened new positions, 17 closed out, 40 added to existing stakes and 35 trimmed.
The largest buyer was Tudor Investment Corp, adding an estimated $1.47M. The largest seller was UBS Group, cutting an estimated $2.82M.
- 120 institutional investors held MBIA (MBI) as of Q4 2025, down from 121 in Q3 2025.
- Funds reported $172M of MBIA stock for Q4 2025, down 6.3% quarter-over-quarter.
- 17 funds opened new MBIA positions in Q4 2025 and 17 closed out, a net change of 0 holders.
- The largest MBIA buyer in Q4 2025 was Tudor Investment Corp, an estimated $1.47M added.
- The largest MBIA seller in Q4 2025 was UBS Group, an estimated $2.82M sold.
Based on aggregated 13F filings for Q4 2025.