125 hedge funds and large institutions have $506M invested in Ambac in 2015 Q3 according to their latest regulatory filings, with 22 funds opening new positions, 52 increasing their positions, 33 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
125
Holders Change
Holders Change %
0%
% of All Funds
3.49%
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.17%
New
22
Increased
52
Reduced
33
Closed
22
Calls
$9.49M
Puts
$4.09M
Net Calls
+$5.4M
Net Calls Change
-$16.4M
Name Holding Trade Value Shares
Change
Shares
Change %
BCM
51
Bridgeway Capital Management
Texas
$1.22M -$579K -40,000 -32%
CCM
52
Century Capital Management
Massachusetts
$1.21M +$1.21M +83,655 New
California State Teachers Retirement System (CalSTRS)
53
California State Teachers Retirement System (CalSTRS)
California
$1.19M -$1.45K -100 -0.1%
AllianceBernstein
54
AllianceBernstein
Tennessee
$1.11M -$1.3K -90 -0.1%
GC
55
Guggenheim Capital
Illinois
$1.07M +$1.07M +74,013 New
Wellington Management Group
56
Wellington Management Group
Massachusetts
$1.07M +$795K +54,975 +289%
LPU
57
Lansdowne Partners (UK)
United Kingdom
$1.03M
CL
58
CSS LLC
Illinois
$1.01M +$92.6K +6,400 +10%
TA
59
Teachers Advisors
New York
$1.01M +$40.9K +2,828 +4%
PPA
60
Parametric Portfolio Associates
Washington
$974K +$672K +46,446 +222%
Norges Bank
61
Norges Bank
Norway
$967K -$57.9K -4,000 -6%
Prudential Financial
62
Prudential Financial
New Jersey
$964K +$964K +66,600 New
Swiss National Bank
63
Swiss National Bank
Switzerland
$864K +$109K +7,500 +14%
RhumbLine Advisers
64
RhumbLine Advisers
Massachusetts
$814K +$44K +3,040 +6%
EMG
65
Ellington Management Group
Connecticut
$721K +$721K +49,797 New
ARTA
66
A.R.T. Advisors
New York
$719K +$252K +17,447 +54%
Wells Fargo
67
Wells Fargo
California
$667K +$136K +9,376 +26%
HI
68
HBK Investments
Texas
$666K +$666K +46,053 New
New York State Common Retirement Fund
69
New York State Common Retirement Fund
New York
$595K -$86.7K -5,990 -13%
JPMorgan Chase & Co
70
JPMorgan Chase & Co
New York
$572K -$2.43M -168,158 -81%
JG
71
Jefferies Group
New York
$547K -$4.07M -281,425 -88%
MBTD
72
Mechanics Bank - Trust Department
California
$511K +$14.5K +1,000 +3%
RJFSA
73
Raymond James Financial Services Advisors
Florida
$509K +$509K +35,150 New
NFA
74
Nationwide Fund Advisors
Ohio
$500K
AQR Capital Management
75
AQR Capital Management
Connecticut
$492K +$216K +14,911 +78%