We are live on ! Find out more

111 hedge funds and large institutions have $102M invested in MBIA in 2025 Q2 according to their latest regulatory filings, with 8 funds opening new positions, 44 increasing their positions, 35 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed

55% more call options, than puts

Call options by funds: $387K | Put options by funds: $250K

26% more repeat investments, than reductions

Existing positions increased: 44 | Existing positions reduced: 35

2.26% less ownership

Funds ownership: 48.76%46.5% (-2.3%)

8% less funds holding

Funds holding: 120111 (-9)

17% less capital invested

Capital invested by funds: $122M → $102M (-$20.7M)

50% less first-time investments, than exits

New positions opened: 8 | Existing positions closed: 16

100% less funds holding in top 10

Funds holding in top 10: 10 (-1)

Holders
111
Holders Change
-9
Holders Change %
-7.5%
% of All Funds
1.46%
Holding in Top 10
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
New
8
Increased
44
Reduced
35
Closed
16
Calls
$387K
Puts
$250K
Net Calls
+$137K
Net Calls Change
-$673K
Name Holding Trade Value Shares
Change
Change in
Stake
Bank of New York Mellon
26
Bank of New York Mellon
New York
$582K +$5.16K +1,163 +0.9%
Renaissance Technologies
27
Renaissance Technologies
New York
$580K +$242K +54,500 +69%
N
28
Nuveen
North Carolina
$524K -$116K -26,174 -18%
State of Wisconsin Investment Board
29
State of Wisconsin Investment Board
Wisconsin
$517K +$103K +23,227 +24%
BCM
30
Bluefin Capital Management
New York
$493K +$50.8K +11,457 +11%
JP Morgan Chase
31
JP Morgan Chase
New York
$471K -$242K -54,457 -33%
T. Rowe Price Associates
32
T. Rowe Price Associates
Maryland
$441K +$5.58K +1,257 +1%
Two Sigma Advisers
33
Two Sigma Advisers
New York
$430K -$57.7K -13,000 -12%
NS
34
NBC Securities
Alabama
$426K +$68.1K +15,349 +19%
Jane Street
35
Jane Street
New York
$420K +$189K +42,669 +79%
CM
36
Caption Management
Oklahoma
$411K -$19.9K -4,489 -5%
BCM
37
Bridgeway Capital Management
Texas
$347K
Russell Investments Group
38
Russell Investments Group
United Kingdom
$339K +$2.9K +654 +0.8%
AllianceBernstein
39
AllianceBernstein
Tennessee
$333K +$25.3K +5,700 +8%
Barclays
40
Barclays
United Kingdom
$332K +$141K +31,679 +71%
Tudor Investment Corp
41
Tudor Investment Corp
Connecticut
$318K -$41K -9,234 -11%
SFI
42
Susquehanna Fundamental Investments
Pennsylvania
$307K -$256K -57,740 -45%
RhumbLine Advisers
43
RhumbLine Advisers
Massachusetts
$303K +$16.1K +3,626 +5%
TI
44
Trexquant Investment
Connecticut
$274K -$401K -90,422 -59%
Squarepoint
45
Squarepoint
New York
$259K +$154K +34,758 +140%
D.E. Shaw & Co
46
D.E. Shaw & Co
New York
$254K -$123K -27,640 -32%
Royal Bank of Canada
47
Royal Bank of Canada
Ontario, Canada
$254K +$219K +49,277 +533%
FNBT
48
FineMark National Bank & Trust
Florida
$217K +$222K +50,000 New
Simplex Trading
49
Simplex Trading
Illinois
$209K -$117K -26,348 -35%
XT
50
XTX Topco
Cayman Islands
$208K +$81.2K +18,301 +62%

MBI Hedge Fund Activity: Q2 2025 in Review

111 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in MBIA (MBI) for Q2 2025, worth a combined $102M — down 17% from $122M a quarter earlier.

Sellers outnumbered buyers: 16 funds closed out of MBI and 8 opened new positions — a net loss of 8 holders — while 35 trimmed existing stakes and 44 added.

The largest buyer was Marshall Wace, adding an estimated $1.2M. The largest seller was Wolf Hill Capital Management, cutting an estimated $3.79M.

  • 111 institutional investors held MBIA (MBI) as of Q2 2025, down from 120 in Q1 2025.
  • Funds reported $102M of MBIA stock for Q2 2025, down 17% quarter-over-quarter.
  • 8 funds opened new MBIA positions in Q2 2025 and 16 closed out, a net change of -8 holders.
  • The largest MBIA buyer in Q2 2025 was Marshall Wace, an estimated $1.2M added.
  • The largest MBIA seller in Q2 2025 was Wolf Hill Capital Management, an estimated $3.79M sold.

Based on aggregated 13F filings for Q2 2025.