Pfizer
      
      
        
          PFE
        
        
      
    
  
          PFE
        
        
      2,239 hedge funds and large institutions have $154B invested in Pfizer in 2017 Q4 according to their latest regulatory filings, with 282 funds opening new positions, 858 increasing their positions, 861 reducing their positions, and 59 closing their positions.
New
  Increased
  Maintained
  Reduced
  Closed
  more first-time investments, than exits
New positions opened: | Existing positions closed:
more funds holding
Funds holding: →
more capital invested
Capital invested by funds: $ → $
more ownership
Funds ownership: →
0% less repeat investments, than reductions
Existing positions increased: 858 | Existing positions reduced: 861
7% less funds holding in top 10
Funds holding in top 10: 175 → 162 (-13)
27% less call options, than puts
Call options by funds: $937M | Put options by funds: $1.28B
    
      Holders
    
  
  
    
      
        
      
        2,239
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        162
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        $937M
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        $1.28B
      
    
      
    
  
Top Buyers
| 1 | +$441M | |
| 2 | +$414M | |
| 3 | +$310M | |
| 4 | 
      Vanguard Group
     
      
        Malvern,
      
      
        Pennsylvania
      
     | +$289M | 
| 5 | 
      Bank of New York Mellon
     
      
      
        New York
      
     | +$273M | 
Top Sellers
| 1 | -$595M | |
| 2 | -$437M | |
| 3 | -$261M | |
| 4 | 
      Citadel Advisors
     
      
        Miami,
      
      
        Florida
      
     | -$244M | 
| 5 | 
      Renaissance Technologies
     
      
      
        New York
      
     | -$167M |