125 hedge funds and large institutions have $996M invested in Ambac in 2014 Q2 according to their latest regulatory filings, with 18 funds opening new positions, 37 increasing their positions, 46 reducing their positions, and 26 closing their positions.

Holders
125
Holders Change
-9
Holders Change %
-6.72%
% of All Funds
3.6%
Holding in Top 10
8
Holding in Top 10 Change
-7
Holding in Top 10 Change %
-46.67%
% of All Funds
0.23%
New
18
Increased
37
Reduced
46
Closed
26
Calls
$16.9M
Puts
$12.4M
Net Calls
+$4.41M
Net Calls Change
-$42.2M
Name Market Value Shares Shares
Change
Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$68.7M 2,514,025 +47,313 +2%
CCA
2
Canyon Capital Advisors
Texas
$55M 2,013,641 +181,487 +10%
FTCM
3
Fir Tree Capital Management
New York
$54.8M 2,006,400
CP
4
Centerbridge Partners
New York
$54.7M 2,003,108
CIFMU
5
Childrens Investment Fund Management (UK)
United Kingdom
$54.2M 1,985,785
Fidelity Investments
6
Fidelity Investments
Massachusetts
$53.4M 1,956,360 +45,000 +2%
AGCJ
7
Alden Global Capital (Jersey)
Jersey
$50.9M 1,865,309
YCMGA
8
York Capital Management Global Advisors
New York
$43.7M 1,600,000 +400,000 +33%
GC
9
GW Capital
Washington
$38.3M 1,403,931 -214,422 -13%
BIT
10
BlackRock Institutional Trust
California
$29.4M 1,077,004 -1,348 -0.1%
BFA
11
BlackRock Fund Advisors
California
$26.6M 973,888 -4,483 -0.5%
LPU
12
Lansdowne Partners (UK)
United Kingdom
$26.2M 959,315 +959,315 New
ACM
13
Archer Capital Management
New York
$24.1M 883,492 +317,439 +56%
CS
14
Credit Suisse
Switzerland
$23.1M 846,340 +697,889 +470%
Dimensional Fund Advisors
15
Dimensional Fund Advisors
Texas
$22.2M 813,374 +444,363 +120%
KCM
16
Key Colony Management
Arkansas
$22.2M 812,341 -173,659 -18%
State Street
17
State Street
Massachusetts
$21.6M 790,389 +27,333 +4%
WA
18
Whitebox Advisors
Minnesota
$21.2M 777,296 +101,305 +15%
VCM
19
Venor Capital Management
New York
$20.9M 765,694 +25,000 +3%
Renaissance Technologies
20
Renaissance Technologies
New York
$16.5M 603,900 +170,100 +39%
RA
21
Royce & Associates
New York
$16.4M 600,691 +3,993 +0.7%
Morgan Stanley
22
Morgan Stanley
New York
$16.2M 592,575 +228,387 +63%
Northern Trust
23
Northern Trust
Illinois
$14.3M 525,052 -37,919 -7%
MCM
24
Maltese Capital Management
New York
$12.3M 450,300 -47,500 -10%
SCI
25
Seneca Capital Investments
New York
$11.5M 419,400 +419,400 New