115 hedge funds and large institutions have $592M invested in Ambac in 2013 Q3 according to their latest regulatory filings, with 34 funds opening new positions, 39 increasing their positions, 25 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
115
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
12
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$5.15M
Puts
$843K
Net Calls
Net Calls Change

Top Buyers

1 +$14.4M
2 +$11.8M
3 +$11.7M
4
BP
Boston Provident
New Jersey
+$10.4M
5
FS
Feinberg Stephen
+$8.7M
Name Holding Trade Value Shares
Change
Change in
Stake
1
$40.1M
2
$36.3M
3
$36M
4
$34.6M
5
$33.9M
6
$32.4M
7
$25.5M
8
$23.4M
9
$22.1M
10
$21.5M
11
$21.1M
12
$14.5M
13
$13.2M
14
$13M
15
$12.1M
16
$11.8M
17
$11.7M
18
$10.8M
19
$10.4M
20
$9.98M
21
$9.89M
22
$8.99M
23
$8.98M
24
$8.34M
25
$7.81M