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MBIA
MBI

133 hedge funds and large institutions have $153M invested in MBIA in 2026 Q1 according to their latest regulatory filings, with 31 funds opening new positions, 40 increasing their positions, 39 reducing their positions, and 15 closing their positions.

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New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding: →

more ownership

Funds ownership: →

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

11% less capital invested

Capital invested by funds: $171M → $153M (-$18.6M)

47% less call options, than puts

Call options by funds: $2.52M | Put options by funds: $4.74M

100% less funds holding in top 10

Funds holding in top 10: 1 → 0 (-1)

Holders
133
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
–
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.52M
Puts
$4.74M
Net Calls
Net Calls Change

Top Buyers

Rank Fund Capital Flow
1
+$6.55M
2
+$2.27M
3
+$2.11M
4
Renaissance Technologies
Renaissance Technologies
New York
+$1.71M
5
Toronto Dominion Bank
Toronto Dominion Bank
Ontario, Canada
+$1.48M

Top Sellers

Rank Fund Capital Flow
1
-$1.51M
2
-$833K
3
-$727K
4
Morgan Stanley
Morgan Stanley
New York
-$587K
5
Bank of America
Bank of America
North Carolina
-$495K
Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$20.1M
WHCM
2
Wolf Hill Capital Management
Connecticut
$15M
KBG
3
Kahn Brothers Group
New York
$12.2M
VCM
4
Vanguard Capital Management
Pennsylvania
$11.7M
V
5
ValueWorks
New York
$11.4M
HP
6
Hosking Partners
United Kingdom
$9.37M
Geode Capital Management
7
Geode Capital Management
Massachusetts
$6.42M
State Street
8
State Street
Massachusetts
$6.32M
TG
9
TCW Group
California
$6.14M
UBS Group
10
UBS Group
Switzerland
$3.94M
Cerity Partners
11
Cerity Partners
New York
$2.55M
Russell Investments Group
12
Russell Investments Group
United Kingdom
$2.54M
Renaissance Technologies
13
Renaissance Technologies
New York
$2.42M
Northern Trust
14
Northern Trust
Illinois
$2.39M
Charles Schwab
15
Charles Schwab
California
$2.17M
Tudor Investment Corp
16
Tudor Investment Corp
Connecticut
$2.06M
Goldman Sachs
17
Goldman Sachs
New York
$1.91M
CAM
18
Chou Associates Management
Ontario, Canada
$1.9M
VFT
19
Vanguard Fiduciary Trust
Pennsylvania
$1.84M
Jane Street
20
Jane Street
New York
$1.83M
WA
21
Whitebox Advisors
Minnesota
$1.8M
VPM
22
Vanguard Portfolio Management
Pennsylvania
$1.56M
Morgan Stanley
23
Morgan Stanley
New York
$1.5M
Toronto Dominion Bank
24
Toronto Dominion Bank
Ontario, Canada
$1.37M
Susquehanna International Group
25
Susquehanna International Group
Pennsylvania
$1.33M
1
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MBI Hedge Fund Activity: Q1 2026 in Review

133 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in MBIA (MBI) for Q1 2026, worth a combined $153M — down 11% from $171M a quarter earlier.

Buyers outnumbered sellers: 31 funds opened new MBI positions and 15 closed out — a net gain of 16 holders — while 40 added to existing stakes and 39 trimmed.

The largest buyer was Kahn Brothers Group, adding an estimated $6.55M. The largest seller was Susquehanna International Group, cutting an estimated $1.51M.

  • 133 institutional investors held MBIA (MBI) as of Q1 2026, up from 119 in Q4 2025.
  • Funds reported $153M of MBIA stock for Q1 2026, down 11% quarter-over-quarter.
  • 31 funds opened new MBIA positions in Q1 2026 and 15 closed out, a net change of +16 holders.
  • The largest MBIA buyer in Q1 2026 was Kahn Brothers Group, an estimated $6.55M added.
  • The largest MBIA seller in Q1 2026 was Susquehanna International Group, an estimated $1.51M sold.

Based on aggregated 13F filings for Q1 2026.