146 hedge funds and large institutions have $628M invested in Ambac in 2017 Q1 according to their latest regulatory filings, with 28 funds opening new positions, 49 increasing their positions, 44 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
146
Holders Change
-4
Holders Change %
-2.67%
% of All Funds
3.64%
Holding in Top 10
8
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.2%
New
28
Increased
49
Reduced
44
Closed
26
Calls
$30.2M
Puts
$5.49M
Net Calls
+$24.7M
Net Calls Change
+$12.2M
Name Holding Trade Value Shares
Change
Shares
Change %
LCM
151
Landscape Capital Management
New Jersey
-$752K -33,400 Closed
AL
152
Airain Ltd
Guernsey
-$692K -30,752 Closed
Squarepoint
153
Squarepoint
New York
-$558K -24,800 Closed
CEP
154
Chicago Equity Partners
Illinois
-$529K -23,500 Closed
D.E. Shaw & Co
155
D.E. Shaw & Co
New York
-$493K -21,900 Closed
Los Angeles Capital Management
156
Los Angeles Capital Management
California
-$420K -18,663 Closed
AP
157
AHL Partners
United Kingdom
-$280K -12,442 Closed
Jane Street
158
Jane Street
New York
-$275K -12,213 Closed
MBTD
159
Mechanics Bank - Trust Department
California
-$270K -12,000 Closed
Principal Financial Group
160
Principal Financial Group
Iowa
-$248K -11,029 Closed
SO
161
STRS Ohio
Ohio
-$236K -10,500 Closed
BCM
162
Bayesian Capital Management
New York
-$231K -10,273 Closed
MA
163
Montag & Associates
Georgia
-$225K -10,000 Closed
Mackenzie Financial
164
Mackenzie Financial
Ontario, Canada
-$219K -9,750 Closed
CSS
165
Cubist Systematic Strategies
Connecticut
-$211K -9,364 Closed
RG
166
Rathbones Group
United Kingdom
-$203K -9,009 Closed
CCMH
167
Cornerstone Capital Management Holdings
New York
-$118K -5,300 Closed
CTC
168
Central Trust Company
Missouri
-$30K -1,330 Closed
PHK
169
Point72 Hong Kong
Hong Kong
-$15K -647 Closed
SEI Investments
170
SEI Investments
Pennsylvania
-$2K -95 Closed