| 
                 
                    Closing price on 7/10/2018
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    4.80 | 
                 
                
                    | High | 
                    4.90 | 
                 
                
                    | Low | 
                    4.80 | 
                     
                
                    | Volume | 
                    14,000 | 
                                 
                
                    | Split-adjusted Price | 
                    4.37 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVO Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/10/2018
             | 
            
                0.00 / 0.00%
             |             
            
                4.80
             |           
            
                4.90
             |               
            
                4.80
             |                           
            
                4.80
             | 
            
                4.84
             |                     
            
                4.37
             |                                 
            
                14,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2018
             | 
            
                +0.10 / +2.13%
             |             
            
                4.70
             |           
            
                5.00
             |               
            
                4.70
             |                           
            
                4.80
             | 
            
                4.84
             |                     
            
                4.37
             |                                 
            
                8,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2018
             | 
            
                +0.10 / +2.17%
             |             
            
                4.70
             |           
            
                4.70
             |               
            
                4.70
             |                           
            
                4.70
             | 
            
                4.70
             |                     
            
                4.28
             |                                 
            
                6,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2018
             | 
            
                -0.40 / -8.00%
             |             
            
                4.90
             |           
            
                4.90
             |               
            
                4.40
             |                           
            
                4.60
             | 
            
                4.65
             |                     
            
                4.19
             |                                 
            
                20,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/4/2018
             | 
            
                +0.10 / +2.04%
             |             
            
                5.00
             |           
            
                5.00
             |               
            
                4.90
             |                           
            
                5.00
             | 
            
                4.95
             |                     
            
                4.55
             |                                 
            
                2,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2018
             | 
            
                -0.10 / -2.00%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                4.90
             |                           
            
                4.90
             | 
            
                5.00
             |                     
            
                4.46
             |                                 
            
                5,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2018
             | 
            
                -0.20 / -3.85%
             |             
            
                5.10
             |           
            
                5.20
             |               
            
                5.00
             |                           
            
                5.00
             | 
            
                5.04
             |                     
            
                4.55
             |                                 
            
                22,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2018
             | 
            
                -0.10 / -1.92%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.21
             |                     
            
                4.64
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2018
             | 
            
                -0.20 / -3.70%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.31
             |                     
            
                4.73
             |                                 
            
                8,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/27/2018
             | 
            
                +0.20 / +3.85%
             |             
            
                5.10
             |           
            
                5.40
             |               
            
                5.10
             |                           
            
                5.40
             | 
            
                5.25
             |                     
            
                4.92
             |                                 
            
                2,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2018
             | 
            
                -0.10 / -1.89%
             |             
            
                5.20
             |           
            
                5.20
             |               
            
                5.20
             |                           
            
                5.20
             | 
            
                5.20
             |                     
            
                4.73
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2018
             | 
            
                0.00 / 0.00%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.30
             |                     
            
                4.82
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2018
             | 
            
                0.00 / 0.00%
             |             
            
                5.40
             |           
            
                5.40
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.30
             |                     
            
                4.82
             |                                 
            
                3,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2018
             | 
            
                -0.20 / -3.64%
             |             
            
                5.30
             |           
            
                5.30
             |               
            
                5.00
             |                           
            
                5.30
             | 
            
                5.07
             |                     
            
                4.82
             |                                 
            
                6,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/20/2018
             | 
            
                +0.40 / +7.84%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.01
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2018
             | 
            
                0.00 / 0.00%
             |             
            
                5.20
             |           
            
                5.20
             |               
            
                4.90
             |                           
            
                5.10
             | 
            
                5.05
             |                     
            
                4.64
             |                                 
            
                10,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2018
             | 
            
                -0.20 / -3.77%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.10
             |                           
            
                5.10
             | 
            
                5.28
             |                     
            
                4.64
             |                                 
            
                15,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2018
             | 
            
                +0.10 / +1.89%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.30
             |                           
            
                5.40
             | 
            
                5.32
             |                     
            
                4.92
             |                                 
            
                6,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2018
             | 
            
                -0.10 / -1.85%
             |             
            
                5.30
             |           
            
                5.40
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.39
             |                     
            
                4.82
             |                                 
            
                5,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2018
             | 
            
                +0.10 / +1.89%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.40
             | 
            
                5.33
             |                     
            
                4.92
             |                                 
            
                2,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2018
             | 
            
                -0.20 / -3.64%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.30
             |                           
            
                5.30
             | 
            
                5.31
             |                     
            
                4.82
             |                                 
            
                21,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2018
             | 
            
                +0.10 / +1.85%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.50
             |                           
            
                5.50
             | 
            
                5.50
             |                     
            
                5.01
             |                                 
            
                3,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2018
             | 
            
                +0.10 / +1.85%
             |             
            
                5.50
             |           
            
                5.50
             |               
            
                5.30
             |                           
            
                5.50
             | 
            
                5.43
             |                     
            
                5.01
             |                                 
            
                12,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2018
             | 
            
                -0.20 / -3.57%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.40
             |                           
            
                5.40
             | 
            
                5.47
             |                     
            
                4.92
             |                                 
            
                20,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/6/2018
             | 
            
                0.00 / 0.00%
             |             
            
                5.50
             |           
            
                5.90
             |               
            
                5.40
             |                           
            
                5.60
             | 
            
                5.55
             |                     
            
                5.10
             |                                 
            
                15,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/5/2018
             | 
            
                -0.10 / -1.75%
             |             
            
                5.80
             |           
            
                5.80
             |               
            
                5.30
             |                           
            
                5.60
             | 
            
                5.63
             |                     
            
                5.10
             |                                 
            
                45,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2018
             | 
            
                -0.10 / -1.72%
             |             
            
                6.20
             |           
            
                6.20
             |               
            
                5.50
             |                           
            
                5.70
             | 
            
                5.80
             |                     
            
                5.19
             |                                 
            
                14,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2018
             | 
            
                +0.50 / +9.26%
             |             
            
                5.30
             |           
            
                5.90
             |               
            
                5.30
             |                           
            
                5.90
             | 
            
                5.84
             |                     
            
                5.37
             |                                 
            
                41,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2018
             | 
            
                -0.10 / -1.82%
             |             
            
                5.60
             |           
            
                5.60
             |               
            
                5.00
             |                           
            
                5.40
             | 
            
                5.22
             |                     
            
                4.92
             |                                 
            
                27,300
             |            
            
                 
             |                                       
         
    
        
            | 
                5/30/2018
             | 
            
                0.00 / 0.00%
             |             
            
                5.80
             |           
            
                5.90
             |               
            
                5.40
             |                           
            
                5.50
             | 
            
                5.59
             |                     
            
                5.01
             |                                 
            
                8,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |