Westlake Corp
      
      
    
  318 hedge funds and large institutions have $4.33B invested in Westlake Corp in 2018 Q1 according to their latest regulatory filings, with 76 funds opening new positions, 92 increasing their positions, 124 reducing their positions, and 37 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 capital invested
Capital invested by funds: $ → $
0.21% less ownership
Funds ownership: 30.36% → 30.14% (-0.21%)
26% less repeat investments, than reductions
Existing positions increased: 92 | Existing positions reduced: 124
36% less funds holding in top 10
Funds holding in top 10: 11 → 7 (-4)
    
      Holders
    
  
  
    
      
        
      
        318
      
    
      
    
  
    
      Holding in Top 10
    
  
  
    
      
        
      
        7
      
    
      
    
  
    
      Calls
    
  
  
    
      
        
      
        $36.1M
      
    
      
    
  
    
      Puts
    
  
  
    
      
        
      
        $29.9M
      
    
      
    
  
Top Buyers
| 1 | +$64.2M | |
| 2 | +$42.8M | |
| 3 | +$41.5M | |
| 4 | 
    CGM
   
      Capital Growth Management
     
      
        Boston,
      
      
        Massachusetts
      
     | +$40M | 
| 5 | 
      Arrowstreet Capital
     
      
        Boston,
      
      
        Massachusetts
      
     | +$31.5M | 
Top Sellers
| 1 | -$55.9M | |
| 2 | -$51.7M | |
| 3 | -$47.4M | |
| 4 | 
      Ameriprise
     
      
        Minneapolis,
      
      
        Minnesota
      
     | -$44.1M | 
| 5 | 
      Wellington Management Group
     
      
        Boston,
      
      
        Massachusetts
      
     | -$43.2M |