116 hedge funds and large institutions have $520M invested in Ambac in 2018 Q1 according to their latest regulatory filings, with 17 funds opening new positions, 29 increasing their positions, 37 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
116
Holders Change
-2
Holders Change %
-1.69%
% of All Funds
2.66%
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.14%
New
17
Increased
29
Reduced
37
Closed
19
Calls
$14.7M
Puts
$4.28M
Net Calls
+$10.5M
Net Calls Change
-$14.2M
Name Holding Trade Value Shares
Change
Shares
Change %
LTFS
101
Ladenburg Thalmann Financial Services
Florida
$17K
APP
102
Avantax Planning Partners
Iowa
$12K +$12K +759 New
QT
103
Quantbot Technologies
New York
$12K +$12K +800 New
SPIA
104
Steward Partners Investment Advisory
New York
$10K
US Bancorp
105
US Bancorp
Minnesota
$7K -$6.91K -458 -50%
Bank of Montreal
106
Bank of Montreal
Ontario, Canada
$6K
Bessemer Group
107
Bessemer Group
New Jersey
$6K
WC
108
Whitney & Co
New York
$6K +$6K +354 New
AG
109
Advisor Group
Arizona
$3K -$2.46K -177 -45%
PNC Financial Services Group
110
PNC Financial Services Group
Pennsylvania
$2K
Royal Bank of Canada
111
Royal Bank of Canada
Ontario, Canada
$1K -$13K -600 -93%
LF
112
Lee Financial
Texas
$1K
CIG
113
Candlewood Investment Group
New York
$941 +$941 +60,000 New
TCI Fund Management
114
TCI Fund Management
United Kingdom
-$31.7M -1,985,785 Closed
HT
115
HAP Trading
New York
-$2.6M -162,530 Closed
SFM
116
Systematic Financial Management
New Jersey
-$1.47M -92,265 Closed
First Trust Advisors
117
First Trust Advisors
Illinois
-$844K -52,830 Closed
Arrowstreet Capital
118
Arrowstreet Capital
Massachusetts
-$799K -49,983 Closed
Prudential Financial
119
Prudential Financial
New Jersey
-$507K -31,704 Closed
SM
120
SG3 Management
Puerto Rico
-$479K -30,000 Closed
Squarepoint
121
Squarepoint
New York
-$322K -20,124 Closed
GC
122
Globeflex Capital
California
-$307K -19,188 Closed
Wellington Management Group
123
Wellington Management Group
Massachusetts
-$197K -12,333 Closed
D.E. Shaw & Co
124
D.E. Shaw & Co
New York
-$176K -11,018 Closed
GIA
125
Gargoyle Investment Advisor
New Jersey
-$175K -10,939 Closed