| 
                 
                    Closing price on 1/31/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.20 | 
                 
                
                    | High | 
                    4.40 | 
                 
                
                    | Low | 
                    4.20 | 
                     
                
                    | Volume | 
                    700 | 
                                 
                
                    | Split-adjusted Price | 
                    4.16 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVO Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/31/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.40
             | 
            
                4.30
             |                     
            
                4.16
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                1/30/2019
             | 
            
                +0.10 / +2.33%
             |             
            
                4.20
             |           
            
                4.40
             |               
            
                4.20
             |                           
            
                4.40
             | 
            
                4.38
             |                     
            
                4.16
             |                                 
            
                8,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.20
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.25
             |                     
            
                4.06
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/28/2019
             | 
            
                -0.10 / -2.27%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.06
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/25/2019
             | 
            
                -0.20 / -4.35%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.16
             |                                 
            
                18,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/24/2019
             | 
            
                +0.30 / +6.98%
             |             
            
                4.40
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.60
             | 
            
                4.51
             |                     
            
                4.34
             |                                 
            
                1,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/23/2019
             | 
            
                -0.20 / -4.44%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.20
             |                           
            
                4.30
             | 
            
                4.27
             |                     
            
                4.06
             |                                 
            
                17,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/22/2019
             | 
            
                +0.20 / +4.65%
             |             
            
                4.30
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.50
             | 
            
                4.39
             |                     
            
                4.25
             |                                 
            
                4,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/21/2019
             | 
            
                -0.20 / -4.44%
             |             
            
                4.30
             |           
            
                4.30
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.30
             |                     
            
                4.06
             |                                 
            
                13,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/18/2019
             | 
            
                +0.10 / +2.22%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.50
             |                     
            
                4.34
             |                                 
            
                6,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/17/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.46
             |                     
            
                4.25
             |                                 
            
                6,800
             |            
            
                 
             |                                       
         
    
        
            | 
                1/16/2019
             | 
            
                -0.10 / -2.17%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.25
             |                                 
            
                7,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/15/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.34
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                1/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.34
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/11/2019
             | 
            
                -0.10 / -2.17%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.59
             |                     
            
                4.25
             |                                 
            
                2,400
             |            
            
                 
             |                                       
         
    
        
            | 
                1/10/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.56
             |                     
            
                4.34
             |                                 
            
                11,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/9/2019
             | 
            
                -0.10 / -2.13%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.62
             |                     
            
                4.34
             |                                 
            
                13,200
             |            
            
                 
             |                                       
         
    
        
            | 
                1/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.80
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.70
             | 
            
                4.69
             |                     
            
                4.44
             |                                 
            
                4,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/7/2019
             | 
            
                +0.40 / +9.30%
             |             
            
                4.80
             |           
            
                4.80
             |               
            
                4.50
             |                           
            
                4.70
             | 
            
                4.75
             |                     
            
                4.44
             |                                 
            
                2,300
             |            
            
                 
             |                                       
         
    
        
            | 
                1/4/2019
             | 
            
                +0.10 / +2.22%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.00
             |                           
            
                4.60
             | 
            
                4.26
             |                     
            
                4.34
             |                                 
            
                27,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/3/2019
             | 
            
                -0.40 / -8.16%
             |             
            
                4.30
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.50
             | 
            
                4.53
             |                     
            
                4.25
             |                                 
            
                9,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                4.90
             |                     
            
                4.63
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2018
             | 
            
                +0.10 / +2.13%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.85
             |                     
            
                4.53
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2018
             | 
            
                +0.10 / +2.17%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.44
             |                                 
            
                100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2018
             | 
            
                -0.20 / -4.17%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.34
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2018
             | 
            
                +0.10 / +2.13%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.50
             |                           
            
                4.80
             | 
            
                4.68
             |                     
            
                4.53
             |                                 
            
                5,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/24/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.70
             |           
            
                4.80
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.71
             |                     
            
                4.44
             |                                 
            
                700
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2018
             | 
            
                -0.10 / -2.08%
             |             
            
                4.80
             |           
            
                4.80
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.73
             |                     
            
                4.44
             |                                 
            
                3,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2018
             | 
            
                +0.10 / +2.13%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.83
             |                     
            
                4.53
             |                                 
            
                3,900
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2018
             | 
            
                -0.10 / -2.08%
             |             
            
                4.80
             |           
            
                4.80
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.75
             |                     
            
                4.44
             |                                 
            
                1,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |