150 hedge funds and large institutions have $738M invested in Ambac in 2016 Q4 according to their latest regulatory filings, with 41 funds opening new positions, 44 increasing their positions, 30 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
150
Holders Change
+30
Holders Change %
+25%
% of All Funds
3.76%
Holding in Top 10
8
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+33.33%
% of All Funds
0.2%
New
41
Increased
44
Reduced
30
Closed
10
Calls
$17.4M
Puts
$4.9M
Net Calls
+$12.5M
Net Calls Change
+$10.9M
Name Holding Trade Value Shares
Change
Shares
Change %
CG
101
Cutler Group
California
$383K +$383K +17,030 New
GIA
102
Gargoyle Investment Advisor
New Jersey
$354K -$208K -9,226 -37%
AIM
103
Acrospire Investment Management
Illinois
$354K +$48.7K +2,164 +16%
Wolverine Trading
104
Wolverine Trading
Illinois
$326K +$326K +14,468 New
FNBT
105
FineMark National Bank & Trust
Florida
$293K
AP
106
AHL Partners
United Kingdom
$280K +$280K +12,442 New
Jane Street
107
Jane Street
New York
$275K +$275K +12,213 New
MBTD
108
Mechanics Bank - Trust Department
California
$270K -$524K -23,282 -66%
Capstone Investment Advisors
109
Capstone Investment Advisors
New York
$251K +$251K +11,167 New
Nisa Investment Advisors
110
Nisa Investment Advisors
Missouri
$250K
Legal & General Group
111
Legal & General Group
United Kingdom
$249K +$101K +4,487 +68%
Principal Financial Group
112
Principal Financial Group
Iowa
$248K +$9.94K +442 +4%
BlackRock
113
BlackRock
New York
$237K
SO
114
STRS Ohio
Ohio
$236K +$236K +10,500 New
Tudor Investment Corp
115
Tudor Investment Corp
Connecticut
$236K +$236K +10,500 New
BCM
116
Bayesian Capital Management
New York
$231K +$231K +10,273 New
MA
117
Montag & Associates
Georgia
$225K +$225K +10,000 New
CCM
118
Chilton Capital Management
Texas
$225K +$225K +10,000 New
Mackenzie Financial
119
Mackenzie Financial
Ontario, Canada
$219K +$219K +9,750 New
CSS
120
Cubist Systematic Strategies
Connecticut
$211K +$211K +9,364 New
BG
121
BlackRock Group
United Kingdom
$208K
RG
122
Rathbones Group
United Kingdom
$203K +$203K +9,009 New
BNP Paribas Financial Markets
123
BNP Paribas Financial Markets
France
$185K +$89K +3,957 +92%
Ohio Public Employees Retirement System (OPERS)
124
Ohio Public Employees Retirement System (OPERS)
Ohio
$151K -$35.8K -1,595 -19%
CCMH
125
Cornerstone Capital Management Holdings
New York
$118K +$118K +5,300 New