125 hedge funds and large institutions have $996M invested in Ambac in 2014 Q2 according to their latest regulatory filings, with 18 funds opening new positions, 37 increasing their positions, 46 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
125
Holders Change
-9
Holders Change %
-6.72%
% of All Funds
3.6%
Holding in Top 10
8
Holding in Top 10 Change
-7
Holding in Top 10 Change %
-46.67%
% of All Funds
0.23%
New
18
Increased
37
Reduced
46
Closed
26
Calls
$16.9M
Puts
$12.4M
Net Calls
+$4.41M
Net Calls Change
-$42.2M
Name Holding Trade Value Shares
Change
Shares
Change %
CC
126
Caspian Capital
New York
-$9.71M -312,846 Closed
Two Sigma Investments
127
Two Sigma Investments
New York
-$6.35M -204,753 Closed
HT
128
HAP Trading
New York
-$3.81M -122,800 Closed
CCM
129
Cortex Capital Management
Texas
-$3.1M -100,000 Closed
BCM
130
BlueMar Capital Management
Florida
-$2.73M -87,900 Closed
NPGCU
131
Napier Park Global Capital (US)
New York
-$2.39M -77,141 Closed
CCP
132
Cyrus Capital Partners
New York
-$916K -29,527 Closed
PP
133
PDT Partners
New York
-$901K -29,030 Closed
BCMU
134
BlueCrest Capital Management (UK)
Guernsey
-$636K -20,500 Closed
CPSAC
135
Chas P. Smith & Associates (CPS)
Florida
-$625K -20,130 Closed
LPC
136
Loeb Partners Corp
New York
-$465K -15,000 Closed
PIP
137
Palisades Investment Partners
California
-$413K -13,300 Closed
CIBC World Market
138
CIBC World Market
Ontario, Canada
-$399K -12,874 Closed
NG
139
NatWest Group
United Kingdom
-$310K -10,000 Closed
GC
140
Guggenheim Capital
Illinois
-$230K -7,424 Closed
T
141
TradeWorx
New Jersey
-$228K -7,334 Closed
Tudor Investment Corp
142
Tudor Investment Corp
Connecticut
-$215K -6,942 Closed
DC
143
Deere & Company
Illinois
-$215K -6,931 Closed
HighTower Advisors
144
HighTower Advisors
Illinois
-$211K -6,800 Closed
PCM
145
Prelude Capital Management
New York
-$208K -6,700 Closed
NES
146
New England Securities
New York
-$11K -354 Closed
ACM
147
Antonetti Capital Management
Florida
-$9K -300 Closed
TRCT
148
Tower Research Capital (TRC)
New York
-$9K -300 Closed
FMT
149
First Mercantile Trust
Tennessee
-$7K -239 Closed
EWM
150
Edge Wealth Management
New York
-$3K -100 Closed