157 hedge funds and large institutions have $722M invested in Ambac in 2018 Q3 according to their latest regulatory filings, with 19 funds opening new positions, 60 increasing their positions, 47 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
157
Holders Change
+7
Holders Change %
+4.67%
% of All Funds
3.6%
Holding in Top 10
3
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-40%
% of All Funds
0.07%
New
19
Increased
60
Reduced
47
Closed
10
Calls
$47.8M
Puts
$14.2M
Net Calls
+$33.6M
Net Calls Change
+$17.1M
Name Holding Trade Value Shares
Change
Shares
Change %
Arrowstreet Capital
51
Arrowstreet Capital
Massachusetts
$1.89M +$1.89M +92,584 New
Wells Fargo
52
Wells Fargo
California
$1.88M +$111K +5,426 +6%
TA
53
Teachers Advisors
New York
$1.78M +$66.1K +3,238 +4%
Nomura Holdings
54
Nomura Holdings
Japan
$1.73M -$455K -22,639 -21%
QOP
55
Quinn Opportunity Partners
Virginia
$1.61M
Swiss National Bank
56
Swiss National Bank
Switzerland
$1.61M
Citadel Advisors
57
Citadel Advisors
Florida
$1.55M +$871K +42,646 +128%
CA
58
Corrado Advisors
New Jersey
$1.55M -$196K -9,579 -11%
Prudential Financial
59
Prudential Financial
New Jersey
$1.51M -$702K -34,370 -32%
Two Sigma Investments
60
Two Sigma Investments
New York
$1.5M -$231K -11,321 -13%
California State Teachers Retirement System (CalSTRS)
61
California State Teachers Retirement System (CalSTRS)
California
$1.42M +$2.8K +137 +0.2%
Millennium Management
62
Millennium Management
New York
$1.4M -$3.28M -160,359 -70%
UBS Group
63
UBS Group
Switzerland
$1.35M +$160K +7,829 +13%
SFM
64
Systematic Financial Management
New Jersey
$1.35M +$1.35M +65,885 New
ASRS
65
Arizona State Retirement System
Arizona
$1.34M -$4.9K -240 -0.4%
Walleye Trading
66
Walleye Trading
New York
$1.33M -$107K -5,218 -7%
Simplex Trading
67
Simplex Trading
Illinois
$1.23M +$1.17M +57,146 +1,872%
Two Sigma Advisers
68
Two Sigma Advisers
New York
$1.18M -$2.06M -101,000 -64%
Canada Life
69
Canada Life
Manitoba, Canada
$1.17M
BIM
70
Bogle Investment Management
Massachusetts
$1.15M +$1.15M +56,255 New
AIMCA
71
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$1.15M
Wolverine Trading
72
Wolverine Trading
Illinois
$1.14M -$735K -36,010 -39%
Barclays
73
Barclays
United Kingdom
$1.11M +$768K +37,591 +224%
RA
74
Raffles Associates
New York
$1.02M
CRM
75
Capital Returns Management
New York
$982K -$2.53M -123,896 -72%