Ambac
      
      
        
          AMBC
        
        
      
    
  
          AMBC
        
        
      174 hedge funds and large institutions have $325M invested in Ambac in 2025 Q1 according to their latest regulatory filings, with 35 funds opening new positions, 53 increasing their positions, 59 reducing their positions, and 38 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more call options, than puts
Call options by funds: $ | Put options by funds: $
more funds holding in top 10
Funds holding in top 10: →
less first-time investments, than exits
New positions opened: | Existing positions closed:
less funds holding
Funds holding: →
6.83% less ownership
Funds ownership: 87.46% → 80.63% (-6.8%)
10% less repeat investments, than reductions
Existing positions increased: 53 | Existing positions reduced: 59
38% less capital invested
Capital invested by funds: $522M → $325M (-$197M)
    
      Holders
    
  
  
    
      
        
      
        174
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        4
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        $84.6M
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        $8.99M
      
    
      
    
  
Top Buyers
| 1 | +$6.33M | |
| 2 | +$4.57M | |
| 3 | +$3.72M | |
| 4 | 
      Jane Street
     
      
      
        New York
      
     | +$3.57M | 
| 5 | 
      Morgan Stanley
     
      
      
        New York
      
     | +$3.15M | 
Top Sellers
| 1 | -$26.8M | |
| 2 | -$8.64M | |
| 3 | -$7.46M | |
| 4 | 
      State Street
     
      
        Boston,
      
      
        Massachusetts
      
     | -$6.67M | 
| 5 | 
      Vanguard Group
     
      
        Malvern,
      
      
        Pennsylvania
      
     | -$4.86M | 
