125 hedge funds and large institutions have $506M invested in Ambac in 2015 Q3 according to their latest regulatory filings, with 22 funds opening new positions, 52 increasing their positions, 33 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
125
Holders Change
Holders Change %
0%
% of All Funds
3.49%
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.17%
New
22
Increased
52
Reduced
33
Closed
22
Calls
$9.49M
Puts
$4.09M
Net Calls
+$5.4M
Net Calls Change
-$16.4M
Name Holding Trade Value Shares
Change
Shares
Change %
TI
126
Tyrian Investments
New York
-$14.9M -895,347 Closed
GC
127
GW Capital
Washington
-$8.5M -510,488 Closed
GL
128
GLG LLC
New York
-$2.54M -152,368 Closed
SG Americas Securities
129
SG Americas Securities
New York
-$1.24M -74,473 Closed
VAM
130
Visium Asset Management
New York
-$1.21M -72,668 Closed
Los Angeles Capital Management
131
Los Angeles Capital Management
California
-$557K -33,478 Closed
D.E. Shaw & Co
132
D.E. Shaw & Co
New York
-$516K -31,000 Closed
MCP
133
Moab Capital Partners
New York
-$359K -21,562 Closed
ST
134
Spot Trading
Illinois
-$346K -20,823 Closed
VKH
135
Virtu KCG Holdings
New York
-$282K -16,962 Closed
KeyBank National Association
136
KeyBank National Association
Ohio
-$232K -13,942 Closed
VIA
137
Vident Investment Advisory
Georgia
-$203K -12,205 Closed
HIP
138
Hatteras Investment Partners
North Carolina
-$192K -11,563 Closed
Tudor Investment Corp
139
Tudor Investment Corp
Connecticut
-$180K -10,809 Closed
ProShare Advisors
140
ProShare Advisors
Maryland
-$171K -10,301 Closed
PAM
141
Panagora Asset Management
Massachusetts
-$152K -9,125 Closed
TRCT
142
Tower Research Capital (TRC)
New York
-$55K -3,287 Closed
FMA
143
FNY Managed Accounts
New York
-$33.3K -2,000 Closed
CAW
144
Cornerstone Advisors (Washington)
Washington
-$21K -1,275 Closed
BC
145
Bartlett & Co
Ohio
-$14K -868 Closed
FFC
146
First Financial Corp
Indiana
-$6K -361 Closed
CPA
147
Cowen Prime Advisors
New York
-$3K -200 Closed