115 hedge funds and large institutions have $592M invested in Ambac in 2013 Q3 according to their latest regulatory filings, with 34 funds opening new positions, 39 increasing their positions, 25 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
115
Holders Change
+16
Holders Change %
+16.16%
% of All Funds
3.73%
Holding in Top 10
12
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-20%
% of All Funds
0.39%
New
34
Increased
39
Reduced
25
Closed
18
Calls
$5.15M
Puts
$843K
Net Calls
+$4.31M
Net Calls Change
+$4.29M
Name Holding Trade Value Shares
Change
Shares
Change %
Nomura Holdings
51
Nomura Holdings
Japan
$1.55M -$617K -34,000 -28%
California State Teachers Retirement System (CalSTRS)
52
California State Teachers Retirement System (CalSTRS)
California
$1.47M +$47K +2,592 +3%
APU
53
Alpine Partners USVI
U.S. Virgin Islands
$1.36M +$1.36M +75,000 New
AllianceBernstein
54
AllianceBernstein
Tennessee
$1.34M -$25.5K -1,406 -2%
AQR Capital Management
55
AQR Capital Management
Connecticut
$1.26M +$1.26M +69,700 New
Two Sigma Investments
56
Two Sigma Investments
New York
$1.25M +$1.25M +68,933 New
TA
57
Teachers Advisors
New York
$1.08M +$37.5K +2,067 +4%
RhumbLine Advisers
58
RhumbLine Advisers
Massachusetts
$1.05M +$7.24K +399 +0.7%
Bank of America
59
Bank of America
North Carolina
$959K -$4.2M -231,586 -81%
ARTA
60
A.R.T. Advisors
New York
$807K +$807K +44,536 New
Citadel Advisors
61
Citadel Advisors
Florida
$730K -$980K -54,062 -57%
NFA
62
Nationwide Fund Advisors
Ohio
$650K +$388K +21,385 +148%
MLICM
63
Metropolitan Life Insurance Company (MetLife)
New York
$635K -$69.9K -3,854 -10%
AIG
64
American International Group
New York
$547K +$546K +30,106 +51,907%
ProShare Advisors
65
ProShare Advisors
Maryland
$518K +$518K +28,550 New
BA
66
BlackRock Advisors
Delaware
$508K +$18.2K +1,004 +4%
DMK
67
David M. Knott
$461K
CCP
68
Cyrus Capital Partners
New York
$454K +$454K +25,000 New
ACM
69
Akanthos Capital Management
California
$453K +$453K +25,000 New
LOM
70
Loeb Offshore Management
New York
$449K +$85.8K +4,727 +24%
SM
71
Scoggin Management
New York
$444K +$444K +24,500 New
Goldman Sachs
72
Goldman Sachs
New York
$421K +$421K +23,222 New
MBTD
73
Mechanics Bank - Trust Department
California
$404K -$72.5K -4,000 -15%
SO
74
STRS Ohio
Ohio
$370K -$10.9K -600 -3%
NG
75
NatWest Group
United Kingdom
$363K -$744K -41,000 -67%