115 hedge funds and large institutions have $507M invested in Ambac in 2016 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 41 increasing their positions, 37 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
115
Holders Change
-12
Holders Change %
-9.45%
% of All Funds
3.07%
Holding in Top 10
4
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-20%
% of All Funds
0.11%
New
10
Increased
41
Reduced
37
Closed
21
Calls
$678K
Puts
$550K
Net Calls
+$128K
Net Calls Change
+$415K
Name Holding Trade Value Shares
Change
Shares
Change %
Zurich Cantonal Bank
101
Zurich Cantonal Bank
Switzerland
$19K
LTFS
102
Ladenburg Thalmann Financial Services
Florida
$18K +$2.04K +127 +13%
CLOS
103
Compagnie Lombard Odier SCmA
Switzerland
$14K
IIC
104
Integrated Investment Consultants
Michigan
$11K +$11K +709 New
Simplex Trading
105
Simplex Trading
Illinois
$10K -$279K -18,127 -97%
Creative Planning
106
Creative Planning
Kansas
$10K
Bessemer Group
107
Bessemer Group
New Jersey
$8K +$1.85K +120 +30%
MFS
108
MSI Financial Services
Massachusetts
$7K
US Bancorp
109
US Bancorp
Minnesota
$6K +$3.05K +198 +104%
PNC Financial Services Group
110
PNC Financial Services Group
Pennsylvania
$5K +$175 +10 +4%
Geode Capital Management
111
Geode Capital Management
Massachusetts
$4.87K -$7 -459 -0.1%
WCBA
112
Weaver C. Barksdale & Associates
Tennessee
$4K
CFS
113
Commonwealth Financial Services
West Virginia
$3K
Royal Bank of Canada
114
Royal Bank of Canada
Ontario, Canada
$2K -$1.03K -74 -34%
BNP Paribas Financial Markets
115
BNP Paribas Financial Markets
France
$174 -$228K -14,439 -100%
Acadian Asset Management
116
Acadian Asset Management
Massachusetts
-$1.54M -109,037 Closed
MC
117
Menta Capital
California
-$1.17M -82,875 Closed
LPU
118
Lansdowne Partners (UK)
United Kingdom
-$1M -71,185 Closed
CEP
119
Chicago Equity Partners
Illinois
-$508K -36,035 Closed
ARTA
120
A.R.T. Advisors
New York
-$384K -27,320 Closed
SCA
121
Secor Capital Advisors
New York
-$303K -21,483 Closed
AL
122
Airain Ltd
Guernsey
-$299K -21,238 Closed
FRM
123
Fox Run Management
Connecticut
-$255K -18,100 Closed
ACI
124
AMP Capital Investors
Australia
-$248K -17,406 Closed
CSS
125
Cubist Systematic Strategies
Connecticut
-$227K -16,095 Closed