124 hedge funds and large institutions have $816M invested in Ambac in 2014 Q4 according to their latest regulatory filings, with 27 funds opening new positions, 36 increasing their positions, 33 reducing their positions, and 20 closing their positions.

Holders
124
Holders Change
+6
Holders Change %
+5.08%
% of All Funds
3.31%
Holding in Top 10
7
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+40%
% of All Funds
0.19%
New
27
Increased
36
Reduced
33
Closed
20
Calls
$54.5M
Puts
$13.8M
Net Calls
+$40.6M
Net Calls Change
+$17.9M
Name Market Value Shares Shares
Change
Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$54.9M 2,240,260 -65,200 -3%
CP
2
Centerbridge Partners
New York
$54.6M 2,228,114 +20,000 +0.9%
CCA
3
Canyon Capital Advisors
Texas
$53.3M 2,176,375 +16,800 +0.8%
Vanguard Group
4
Vanguard Group
Pennsylvania
$51.4M 2,099,183 -403,420 -16%
FTCM
5
Fir Tree Capital Management
New York
$49.2M 2,006,400
CIFMU
6
Childrens Investment Fund Management (UK)
United Kingdom
$48.7M 1,985,785
AGCJ
7
Alden Global Capital (Jersey)
Jersey
$40.9M 1,669,550 +274,498 +20%
WA
8
Whitebox Advisors
Minnesota
$36.1M 1,473,916 -46,163 -3%
CS
9
Credit Suisse
Switzerland
$33.9M 1,385,312 -110,872 -7%
Dimensional Fund Advisors
10
Dimensional Fund Advisors
Texas
$27.3M 1,112,501 +94,383 +9%
GC
11
GW Capital
Washington
$26.3M 1,073,929 -255,930 -19%
BIT
12
BlackRock Institutional Trust
California
$25.7M 1,050,101 +10,435 +1%
BFA
13
BlackRock Fund Advisors
California
$23.3M 952,305 +1,379 +0.1%
State Street
14
State Street
Massachusetts
$17.9M 729,452 -2,478 -0.3%
KCM
15
Key Colony Management
Arkansas
$17M 691,959 -96,282 -12%
Morgan Stanley
16
Morgan Stanley
New York
$16M 651,727 -221,151 -25%
Millennium Management
17
Millennium Management
New York
$13.6M 553,246 +268,556 +94%
SCI
18
Seneca Capital Investments
New York
$13.5M 549,912 +7,800 +1%
Renaissance Technologies
19
Renaissance Technologies
New York
$12.5M 511,500 -76,900 -13%
RA
20
Royce & Associates
New York
$12M 490,946 -144,500 -23%
Susquehanna International Group
21
Susquehanna International Group
Pennsylvania
$11.7M 478,852 +106,730 +29%
Northern Trust
22
Northern Trust
Illinois
$11.7M 476,953 -20,960 -4%
Deutsche Bank
23
Deutsche Bank
Germany
$10.4M 426,523 -125,803 -23%
SC
24
Sessa Capital
New York
$9.66M 394,149 +394,149 New
BTS
25
BB&T Securities
Virginia
$8.02M 32,748 +2,000 +7%