133 hedge funds and large institutions have $499M invested in Ambac in 2021 Q3 according to their latest regulatory filings, with 20 funds opening new positions, 37 increasing their positions, 44 reducing their positions, and 12 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

less ownership

Funds ownership:

12% less capital invested

Capital invested by funds: $564M → $499M (-$65.7M)

16% less repeat investments, than reductions

Existing positions increased: 37 | Existing positions reduced: 44

50% less funds holding in top 10

Funds holding in top 10: 42 (-2)

Holders
133
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$5.75M
Puts
$2.58M
Net Calls
Net Calls Change

Top Sellers

1 -$24.3M
2 -$5.66M
3 -$5.11M
4
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$4.51M
5
BlackRock
BlackRock
New York
-$2.85M
Name Holding Trade Value Shares
Change
Change in
Stake
1
$90.6M
2
$69.6M
3
$29.5M
4
$27.8M
5
$27.1M
6
$22.2M
7
$21.3M
8
$19.5M
9
$14.1M
10
$13.9M
11
$11.4M
12
$10.7M
13
$10.1M
14
$8.51M
15
$7.08M
16
$6.92M
17
$6.27M
18
$6.23M
19
$5.92M
20
$5.33M
21
$4.69M
22
$4.51M
23
$3.74M
24
$3.6M
25
$3.29M