| 
                 
                    Closing price on 4/17/2019
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.40 | 
                 
                
                    | High | 
                    4.40 | 
                 
                
                    | Low | 
                    4.40 | 
                     
                
                    | Volume | 
                    2,000 | 
                                 
                
                    | Split-adjusted Price | 
                    4.16 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVO Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                4/17/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.16
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                4/16/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.16
             |                                 
            
                5,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/12/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.38
             |                     
            
                4.16
             |                                 
            
                5,500
             |            
            
                 
             |                                       
         
    
        
            | 
                4/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.16
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/10/2019
             | 
            
                -0.10 / -2.22%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.16
             |                                 
            
                11,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/9/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.49
             |                     
            
                4.25
             |                                 
            
                14,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/8/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.48
             |                     
            
                4.25
             |                                 
            
                13,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.40
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.47
             |                     
            
                4.25
             |                                 
            
                7,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2019
             | 
            
                -0.10 / -2.17%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.40
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.25
             |                                 
            
                9,400
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2019
             | 
            
                +0.20 / +4.55%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.52
             |                     
            
                4.34
             |                                 
            
                4,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/2/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.49
             |                     
            
                4.16
             |                                 
            
                3,700
             |            
            
                 
             |                                       
         
    
        
            | 
                4/1/2019
             | 
            
                -0.10 / -2.22%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.30
             |                           
            
                4.40
             | 
            
                4.36
             |                     
            
                4.16
             |                                 
            
                69,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.25
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2019
             | 
            
                -0.10 / -2.17%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.50
             |                           
            
                4.50
             | 
            
                4.50
             |                     
            
                4.25
             |                                 
            
                8,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2019
             | 
            
                +0.20 / +4.55%
             |             
            
                4.40
             |           
            
                4.60
             |               
            
                4.40
             |                           
            
                4.60
             | 
            
                4.47
             |                     
            
                4.34
             |                                 
            
                5,900
             |            
            
                 
             |                                       
         
    
        
            | 
                3/26/2019
             | 
            
                +0.10 / +2.33%
             |             
            
                4.40
             |           
            
                4.40
             |               
            
                4.40
             |                           
            
                4.40
             | 
            
                4.40
             |                     
            
                4.16
             |                                 
            
                20,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/25/2019
             | 
            
                -0.30 / -6.52%
             |             
            
                4.50
             |           
            
                4.50
             |               
            
                4.30
             |                           
            
                4.30
             | 
            
                4.40
             |                     
            
                4.06
             |                                 
            
                26,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.50
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.57
             |                     
            
                4.34
             |                                 
            
                6,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/21/2019
             | 
            
                -0.10 / -2.13%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.60
             |                     
            
                4.34
             |                                 
            
                9,500
             |            
            
                 
             |                                       
         
    
        
            | 
                3/20/2019
             | 
            
                -0.20 / -4.08%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.60
             |                           
            
                4.70
             | 
            
                4.63
             |                     
            
                4.44
             |                                 
            
                21,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/19/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.70
             |           
            
                4.90
             |               
            
                4.70
             |                           
            
                4.90
             | 
            
                4.88
             |                     
            
                4.63
             |                                 
            
                1,100
             |            
            
                 
             |                                       
         
    
        
            | 
                3/18/2019
             | 
            
                -0.10 / -2.00%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                5.05
             |                     
            
                4.63
             |                                 
            
                52,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/15/2019
             | 
            
                +0.50 / +10.87%
             |             
            
                4.50
             |           
            
                5.10
             |               
            
                4.50
             |                           
            
                5.10
             | 
            
                4.95
             |                     
            
                4.82
             |                                 
            
                121,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/14/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.00
             |           
            
                4.60
             |               
            
                4.00
             |                           
            
                4.60
             | 
            
                4.49
             |                     
            
                4.34
             |                                 
            
                16,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/13/2019
             | 
            
                -0.10 / -2.13%
             |             
            
                4.60
             |           
            
                4.60
             |               
            
                4.50
             |                           
            
                4.60
             | 
            
                4.56
             |                     
            
                4.34
             |                                 
            
                11,400
             |            
            
                 
             |                                       
         
    
        
            | 
                3/12/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.44
             |                                 
            
                5,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/11/2019
             | 
            
                0.00 / 0.00%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.44
             |                                 
            
                17,300
             |            
            
                 
             |                                       
         
    
        
            | 
                3/8/2019
             | 
            
                +0.10 / +2.17%
             |             
            
                4.60
             |           
            
                4.70
             |               
            
                4.60
             |                           
            
                4.70
             | 
            
                4.68
             |                     
            
                4.44
             |                                 
            
                2,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/7/2019
             | 
            
                -0.20 / -4.17%
             |             
            
                4.80
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.60
             | 
            
                4.69
             |                     
            
                4.34
             |                                 
            
                12,200
             |            
            
                 
             |                                       
         
    
        
            | 
                3/6/2019
             | 
            
                +0.30 / +6.67%
             |             
            
                4.60
             |           
            
                4.80
             |               
            
                4.60
             |                           
            
                4.80
             | 
            
                4.64
             |                     
            
                4.53
             |                                 
            
                15,400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |