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 %
Walleye Trading
126
Walleye Trading
New York
-$223K -15,799 Closed
SKK
127
Shepherd Kaplan Krochuk
Massachusetts
-$200K -14,197 Closed
AG
128
Aperio Group
California
-$195K -13,838 Closed
PP
129
Paloma Partners
Connecticut
-$194K -13,819 Closed
ProShare Advisors
130
ProShare Advisors
Maryland
-$164K -11,670 Closed
VKH
131
Virtu KCG Holdings
New York
-$149K -10,598 Closed
TCMG
132
TSP Capital Management Group
New Jersey
-$145K -10,000 Closed
PAM
133
Panagora Asset Management
Massachusetts
-$26K -1,814 Closed
TRCT
134
Tower Research Capital (TRC)
New York
-$8K -572 Closed
AFP
135
Ausdal Financial Partners
Iowa
-$6K -443 Closed
QI
136
QS Investors
New York
-$4K -300 Closed