146 hedge funds and large institutions have $628M invested in Ambac in 2017 Q1 according to their latest regulatory filings, with 28 funds opening new positions, 49 increasing their positions, 44 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
146
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
8
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$30.2M
Puts
$5.49M
Net Calls
Net Calls Change

Top Buyers

1 +$40M
2 +$15.8M
3 +$9.87M
4
Goldman Sachs
Goldman Sachs
New York
+$9.26M
5
AQR Capital Management
AQR Capital Management
Connecticut
+$8.46M

Top Sellers

1 -$24.3M
2 -$8.14M
3 -$6.33M
4
Vanguard Group
Vanguard Group
Pennsylvania
-$6.14M
5
AllianceBernstein
AllianceBernstein
Tennessee
-$4.05M
Name Holding Trade Value Shares
Change
Change in
Stake
1
$48.5M
2
$42.3M
3
$40.2M
4
$37.5M
5
$35.9M
6
$34.7M
7
$27.9M
8
$24.6M
9
$23.8M
10
$16.5M
11
$16.4M
12
$16.4M
13
$15.3M
14
$13.5M
15
$12.1M
16
$11.9M
17
$10.3M
18
$10.1M
19
$9.69M
20
$9.05M
21
$7.95M
22
$7.92M
23
$7.25M
24
$6.87M
25
$4.74M