118 hedge funds and large institutions have $544M invested in Ambac in 2017 Q4 according to their latest regulatory filings, with 22 funds opening new positions, 34 increasing their positions, 39 reducing their positions, and 23 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
118
Holders Change
-2
Holders Change %
-1.67%
% of All Funds
2.68%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.14%
New
22
Increased
34
Reduced
39
Closed
23
Calls
$28.8M
Puts
$4.16M
Net Calls
+$24.6M
Net Calls Change
+$80.8M
Name Holding Trade Value Shares
Change
Shares
Change %
Susquehanna International Group
26
Susquehanna International Group
Pennsylvania
$4.47M +$3.61M +225,866 +420%
HA
27
Harbor Advisors
Florida
$3.89M
CC
28
CQS Cayman
Cayman Islands
$3.83M +$3.83M +239,645 New
GCM
29
Gator Capital Management
Florida
$3.79M +$3.79M +237,316 New
Two Sigma Investments
30
Two Sigma Investments
New York
$3.77M +$3.27M +204,900 +659%
PPA
31
Parametric Portfolio Associates
Washington
$3.62M -$376K -23,540 -9%
Barrow, Hanley, Mewhinney & Strauss
32
Barrow, Hanley, Mewhinney & Strauss
Texas
$3.38M +$940K +58,855 +39%
Bank of New York Mellon
33
Bank of New York Mellon
New York
$3.3M -$109K -6,849 -3%
PAM
34
Panagora Asset Management
Massachusetts
$2.7M +$1.79M +112,104 +198%
Nomura Holdings
35
Nomura Holdings
Japan
$2.61M -$1.89M -119,332 -42%
HT
36
HAP Trading
New York
$2.6M +$2.6M +162,530 New
Morgan Stanley
37
Morgan Stanley
New York
$2.55M +$1.1M +68,800 +76%
Two Sigma Advisers
38
Two Sigma Advisers
New York
$2.47M +$2.47M +154,838 New
Connor, Clark & Lunn Investment Management (CC&L)
39
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$2.44M -$1.57M -98,133 -39%
DMK
40
David M. Knott
$2.32M
TCIM
41
TIAA CREF Investment Management
New York
$2.25M -$1.75M -109,718 -44%
CA
42
Corrado Advisors
New Jersey
$2.21M +$5.83K +365 +0.3%
PCM
43
Proxima Capital Management
New York
$1.92M +$1.92M +120,130 New
GCP
44
GSA Capital Partners
United Kingdom
$1.88M +$70.4K +4,405 +4%
Hotchkis & Wiley Capital Management
45
Hotchkis & Wiley Capital Management
California
$1.84M +$1.67M +104,182 +975%
BCM
46
Bridgeway Capital Management
Texas
$1.53M -$799K -50,000 -34%
SFM
47
Systematic Financial Management
New Jersey
$1.47M +$171K +10,695 +13%
Wells Fargo
48
Wells Fargo
California
$1.39M +$25.8K +1,617 +2%
TA
49
Teachers Advisors
New York
$1.28M +$35.2K +2,204 +3%
Russell Investments Group
50
Russell Investments Group
United Kingdom
$1.24M -$1.03M -65,050 -45%