Performance & Stability
        
        How Does the Use of LIS Waivers Impact the Measurement of Best Execution for Institutional Traders?
        
         
        
        
          
        
        
      
        
     
        
        LIS waivers complicate best execution measurement by moving large trades off-lit markets, requiring a shift to counterfactual TCA models.

 
  
  
  
  
 