Exhibit 11.1
Redwood Trust, Inc.
Computation of Per Share Earnings

                             
        Twelve Months   Twelve Months   Twelve Months
        Ended   Ended   Ended
        December 31, 2003   December 31, 2002   December 31, 2001
       
 
 
Basic:
                       
 
Average common shares outstanding
    17,759,346       15,177,449       10,163,581  
 
 
   
     
     
 
   
Total
    17,759,346       15,177,449       10,163,581  
 
 
   
     
     
 
 
Net Income
  $ 131,713,361     $ 53,893,217     $ 30,162,747  
 
 
   
     
     
 
 
Per Share Amount
  $ 7.42     $ 3.55     $ 2.97  
 
 
   
     
     
 
Diluted:
                       
 
Average common shares outstanding
    17,759,346       15,177,449       10,163,581  
 
Net effect of dilutive stock options outstanding during the period — based on the treasury stock method
    827,303       481,174       311,183  
 
 
   
     
     
 
   
Total
    18,586,649       15,658,623       10,474,764  
 
 
   
     
     
 
 
Net Income
  $ 131,713,361     $ 53,893,217     $ 30,162,747  
 
 
   
     
     
 
 
Per Share Amount
  $ 7.09     $ 3.44     $ 2.88