MBIA
MBI
121 hedge funds and large institutions have $183M invested in MBIA in 2025 Q3 according to their latest regulatory filings, with 23 funds opening new positions, 34 increasing their positions, 38 reducing their positions, and 13 closing their positions.
461% more call options, than puts
Call options by funds: $15.1M | Put options by funds: $2.69M
80% more capital invested
Capital invested by funds: $102M → $183M (+$81.5M)
77% more first-time investments, than exits
New positions opened: 23 | Existing positions closed: 13
9% more funds holding
Funds holding: 111 → 121 (+10)
2.22% more ownership
Funds ownership: 46.5% → 48.72% (+2.2%)
11% less repeat investments, than reductions
Existing positions increased: 34 | Existing positions reduced: 38
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
KBG
Kahn Brothers Group
New York
|
+$6.53M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$2.74M |
| 3 |
Jane Street
New York
|
+$1.42M |
| 4 |
PFMOSF
Philadelphia Financial Management of San Francisco
San Francisco,
California
|
+$1.34M |
| 5 |
Simplex Trading
Chicago,
Illinois
|
+$1.32M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
-$1.81M |
| 2 |
FCH
Freestone Capital Holdings
Seattle,
Washington
|
-$1.32M |
| 3 |
V
ValueWorks
New York
|
-$1M |
| 4 |
Morgan Stanley
New York
|
-$893K |
| 5 |
Two Sigma Investments
New York
|
-$487K |
MBI Hedge Fund Activity: Q3 2025 in Review
121 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in MBIA (MBI) for Q3 2025, worth a combined $183M — up 80% from $102M a quarter earlier.
Buyers outnumbered sellers: 23 funds opened new MBI positions and 13 closed out — a net gain of 10 holders — while 34 added to existing stakes and 38 trimmed.
The largest buyer was Kahn Brothers Group, opening a new position worth an estimated $6.53M. The largest seller was Marshall Wace, exiting entirely with an estimated $1.81M sold.
- 121 institutional investors held MBIA (MBI) as of Q3 2025, up from 111 in Q2 2025.
- Funds reported $183M of MBIA stock for Q3 2025, up 80% quarter-over-quarter.
- 23 funds opened new MBIA positions in Q3 2025 and 13 closed out, a net change of +10 holders.
- The largest MBIA buyer in Q3 2025 was Kahn Brothers Group, an estimated $6.53M added.
- The largest MBIA seller in Q3 2025 was Marshall Wace, an estimated $1.81M sold.
Based on aggregated 13F filings for Q3 2025.