125 hedge funds and large institutions have $579M invested in Ambac in 2015 Q2 according to their latest regulatory filings, with 21 funds opening new positions, 45 increasing their positions, 39 reducing their positions, and 17 closing their positions.

Holders
125
Holders Change
+3
Holders Change %
+2.46%
% of All Funds
3.37%
Holding in Top 10
6
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-25%
% of All Funds
0.16%
New
21
Increased
45
Reduced
39
Closed
17
Calls
$34.8M
Puts
$13M
Net Calls
+$21.8M
Net Calls Change
+$13.2M
Name Market Value Shares Shares
Change
Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$37.3M 2,240,260
CP
2
Centerbridge Partners
New York
$36.1M 2,170,514 -57,600 -3%
CCA
3
Canyon Capital Advisors
Texas
$35.4M 2,129,888 +219 +0%
Vanguard Group
4
Vanguard Group
Pennsylvania
$35.4M 2,129,703 -37,614 -2%
TCI Fund Management
5
TCI Fund Management
United Kingdom
$33M 1,985,785 +1,985,785 New
AGC
6
Alden Global Capital
Florida
$30.5M 1,835,150 +50,000 +3%
FTCM
7
Fir Tree Capital Management
New York
$30.5M 1,830,689 -147,019 -7%
Dimensional Fund Advisors
8
Dimensional Fund Advisors
Texas
$26M 1,559,991 +203,678 +15%
Susquehanna International Group
9
Susquehanna International Group
Pennsylvania
$23.4M 1,407,688 +1,153,339 +453%
CS
10
Credit Suisse
Switzerland
$22.5M 1,350,624 -65,203 -5%
WA
11
Whitebox Advisors
Minnesota
$16M 963,299 -247,857 -20%
BIT
12
BlackRock Institutional Trust
California
$15.9M 952,673 -90,964 -9%
BFA
13
BlackRock Fund Advisors
California
$15.6M 938,449 -13,777 -1%
TI
14
Tyrian Investments
New York
$14.9M 895,347 -253,048 -22%
Millennium Management
15
Millennium Management
New York
$13.4M 803,512 +455,968 +131%
State Street
16
State Street
Massachusetts
$13M 781,672 +14,960 +2%
Goldman Sachs
17
Goldman Sachs
New York
$12.3M 736,741 +139,469 +23%
RA
18
Royce & Associates
New York
$9.2M 552,988 +90,600 +20%
SC
19
Sessa Capital
New York
$9.15M 550,000 +102,922 +23%
GC
20
GW Capital
Washington
$8.5M 510,488 -541,643 -51%
Northern Trust
21
Northern Trust
Illinois
$7.75M 465,904 -21,075 -4%
RCM
22
Raging Capital Management
New Jersey
$7.56M 454,515 +454,515 New
Morgan Stanley
23
Morgan Stanley
New York
$7.36M 442,100 -7,562 -2%
KCM
24
Key Colony Management
Arkansas
$6.09M 365,940 -201,760 -36%
Invesco
25
Invesco
Georgia
$5.92M 355,971 +242,324 +213%