125 hedge funds and large institutions have $579M invested in Ambac in 2015 Q2 according to their latest regulatory filings, with 21 funds opening new positions, 45 increasing their positions, 39 reducing their positions, and 17 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
125
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$34.8M
Puts
$13M
Net Calls
Net Calls Change

Top Buyers

1 +$19.2M
2 +$7.59M
3 +$7.56M
4
Invesco
Invesco
Georgia
+$4.03M
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$3.39M
Name Holding Trade Value Shares
Change
Change in
Stake
1
$37.3M
2
$36.1M
3
$35.4M
4
$35.4M
5
$33M
6
$30.5M
7
$30.5M
8
$26M
9
$23.4M
10
$22.5M
11
$16M
12
$15.9M
13
$15.6M
14
$14.9M
15
$13.4M
16
$13M
17
$12.3M
18
$9.2M
19
$9.15M
20
$8.49M
21
$7.75M
22
$7.56M
23
$7.36M
24
$6.09M
25
$5.92M