Interactive Brokers
      
      
        
          IBKR
        
        
      
    
  
          IBKR
        
        
      737 hedge funds and large institutions have $15.5B invested in Interactive Brokers in 2025 Q1 according to their latest regulatory filings, with 137 funds opening new positions, 263 increasing their positions, 256 reducing their positions, and 88 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more first-time investments, than exits
New positions opened: | Existing positions closed:
more call options, than puts
Call options by funds: $ | Put options by funds: $
more funds holding
Funds holding: →
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
0.28% more ownership
Funds ownership: 343.63% → 343.91% (+0.28%)
8% less capital invested
Capital invested by funds: $16.9B → $15.5B (-$1.43B)
27% less funds holding in top 10
Funds holding in top 10: 30 → 22 (-8)
    
      Holders
    
  
  
    
      
        
      
        737
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        22
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        $391M
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        $305M
      
    
      
    
  
Top Buyers
| 1 | +$222M | |
| 2 | +$113M | |
| 3 | +$68.9M | |
| 4 | 
      Two Sigma Advisers
     
      
      
        New York
      
     | +$63.3M | 
| 5 | 
      KBC Group
     
      
        Brussels,
      
      
        Belgium
      
     | +$62.1M | 
Top Sellers
| 1 | -$297M | |
| 2 | -$148M | |
| 3 | -$119M | |
| 4 | 
      Wellington Management Group
     
      
        Boston,
      
      
        Massachusetts
      
     | -$84.5M | 
| 5 | 
    FFM
   
      Fullerton Fund Management
     
      
      
        Singapore
      
     | -$69.1M | 
 
 
