| 
                 
                    Closing price on 2/26/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    19.00 | 
                 
                
                    | High | 
                    19.00 | 
                 
                
                    | Low | 
                    19.00 | 
                     
                
                    | Volume | 
                    1,100 | 
                                 
                
                    | Split-adjusted Price | 
                    16.29 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
POT Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                2/26/2018
             | 
            
                -1.90 / -9.09%
             |             
            
                19.00
             |           
            
                19.00
             |               
            
                19.00
             |                           
            
                19.00
             | 
            
                19.00
             |                     
            
                16.29
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                20.90
             |           
            
                20.90
             |               
            
                20.90
             |                           
            
                20.90
             | 
            
                20.90
             |                     
            
                17.92
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/22/2018
             | 
            
                +0.90 / +4.50%
             |             
            
                20.90
             |           
            
                20.90
             |               
            
                20.90
             |                           
            
                20.90
             | 
            
                20.90
             |                     
            
                17.92
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                2/21/2018
             | 
            
                +1.80 / +9.89%
             |             
            
                16.50
             |           
            
                20.00
             |               
            
                16.40
             |                           
            
                20.00
             | 
            
                16.52
             |                     
            
                17.15
             |                                 
            
                3,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/13/2018
             | 
            
                0.00 / 0.00%
             |             
            
                18.20
             |           
            
                18.20
             |               
            
                18.20
             |                           
            
                18.20
             | 
            
                18.20
             |                     
            
                15.61
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/12/2018
             | 
            
                0.00 / 0.00%
             |             
            
                18.20
             |           
            
                18.20
             |               
            
                18.20
             |                           
            
                18.20
             | 
            
                18.20
             |                     
            
                15.61
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/9/2018
             | 
            
                +0.10 / +0.55%
             |             
            
                18.20
             |           
            
                18.20
             |               
            
                18.00
             |                           
            
                18.20
             | 
            
                18.14
             |                     
            
                15.61
             |                                 
            
                3,400
             |            
            
                 
             |                                       
         
    
        
            | 
                2/8/2018
             | 
            
                -1.90 / -9.50%
             |             
            
                18.10
             |           
            
                18.10
             |               
            
                18.10
             |                           
            
                18.10
             | 
            
                18.10
             |                     
            
                15.52
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/7/2018
             | 
            
                0.00 / 0.00%
             |             
            
                20.00
             |           
            
                20.00
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                17.15
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                2/6/2018
             | 
            
                0.00 / 0.00%
             |             
            
                20.00
             |           
            
                20.00
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                17.15
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/5/2018
             | 
            
                +0.80 / +4.17%
             |             
            
                20.20
             |           
            
                20.20
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.04
             |                     
            
                17.15
             |                                 
            
                52,029
             |            
            
                 
             |                                       
         
    
        
            | 
                2/2/2018
             | 
            
                +0.20 / +1.00%
             |             
            
                20.20
             |           
            
                20.20
             |               
            
                20.20
             |                           
            
                20.20
             | 
            
                20.20
             |                     
            
                16.46
             |                                 
            
                520
             |  
            
                 
             |                                                              
             
    
        			
            | 
                2/1/2018
             | 
            
                -0.70 / -3.38%
             |             
            
                20.00
             |           
            
                20.00
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                16.30
             |                                 
            
                51,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/31/2018
             | 
            
                +0.70 / +3.50%
             |             
            
                20.80
             |           
            
                20.80
             |               
            
                20.70
             |                           
            
                20.70
             | 
            
                20.72
             |                     
            
                16.87
             |                                 
            
                1,404
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/30/2018
             | 
            
                -0.10 / -0.50%
             |             
            
                20.10
             |           
            
                20.10
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.03
             |                     
            
                16.30
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/29/2018
             | 
            
                -0.40 / -1.95%
             |             
            
                20.10
             |           
            
                20.50
             |               
            
                20.10
             |                           
            
                20.10
             | 
            
                20.11
             |                     
            
                16.38
             |                                 
            
                20,732
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/26/2018
             | 
            
                +0.50 / +2.50%
             |             
            
                20.00
             |           
            
                20.50
             |               
            
                20.00
             |                           
            
                20.50
             | 
            
                20.02
             |                     
            
                16.71
             |                                 
            
                2,100
             |            
            
                 
             |                                       
         
    
        
            | 
                1/25/2018
             | 
            
                -0.40 / -1.96%
             |             
            
                20.10
             |           
            
                20.60
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.10
             |                     
            
                16.30
             |                                 
            
                25,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/24/2018
             | 
            
                +0.20 / +0.99%
             |             
            
                20.10
             |           
            
                20.40
             |               
            
                20.10
             |                           
            
                20.40
             | 
            
                20.15
             |                     
            
                16.63
             |                                 
            
                18,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/23/2018
             | 
            
                0.00 / 0.00%
             |             
            
                20.20
             |           
            
                20.20
             |               
            
                20.20
             |                           
            
                20.20
             | 
            
                20.20
             |                     
            
                16.46
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/22/2018
             | 
            
                -0.80 / -3.81%
             |             
            
                20.20
             |           
            
                20.20
             |               
            
                20.20
             |                           
            
                20.20
             | 
            
                20.20
             |                     
            
                16.46
             |                                 
            
                21,137
             |            
            
                 
             |                                       
         
    
        
            | 
                1/19/2018
             | 
            
                +0.80 / +3.96%
             |             
            
                21.00
             |           
            
                21.00
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                17.12
             |                                 
            
                1,955
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/18/2018
             | 
            
                -0.80 / -3.81%
             |             
            
                20.20
             |           
            
                20.20
             |               
            
                20.20
             |                           
            
                20.20
             | 
            
                20.20
             |                     
            
                16.46
             |                                 
            
                140
             |            
            
                 
             |                                       
         
    
        
            | 
                1/17/2018
             | 
            
                0.00 / 0.00%
             |             
            
                21.00
             |           
            
                21.00
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                17.12
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/16/2018
             | 
            
                0.00 / 0.00%
             |             
            
                21.00
             |           
            
                21.00
             |               
            
                21.00
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                17.12
             |                                 
            
                856
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2018
             | 
            
                +1.00 / +5.00%
             |             
            
                20.00
             |           
            
                21.00
             |               
            
                20.00
             |                           
            
                21.00
             | 
            
                20.75
             |                     
            
                17.12
             |                                 
            
                2,364
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2018
             | 
            
                -0.50 / -2.44%
             |             
            
                20.00
             |           
            
                20.00
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                16.30
             |                                 
            
                108
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2018
             | 
            
                -0.10 / -0.49%
             |             
            
                20.60
             |           
            
                20.60
             |               
            
                20.50
             |                           
            
                20.50
             | 
            
                20.51
             |                     
            
                16.71
             |                                 
            
                1,064
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2018
             | 
            
                +0.60 / +3.00%
             |             
            
                19.60
             |           
            
                20.60
             |               
            
                19.60
             |                           
            
                20.60
             | 
            
                20.28
             |                     
            
                16.79
             |                                 
            
                598
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2018
             | 
            
                -1.00 / -4.76%
             |             
            
                20.00
             |           
            
                20.00
             |               
            
                20.00
             |                           
            
                20.00
             | 
            
                20.00
             |                     
            
                16.30
             |                                 
            
                1,100
             |  
            
                 
             |                                                              
             
    
         
    
    
 |