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Note 8 - Financial Highlights
12 Months Ended
Dec. 31, 2017
Notes to Financial Statements  
Financial Highlights [Text Block]
8
-
Financial Highlights
 
The follow
ing financial highlights relate to investment performance and operations for a Share outstanding for the years ended
December 31, 2017,
2016
and
2015.
 
   
December 31,
 
   
2017
   
2016
   
2015
 
Net asset value per Share, beginning of year
  $
11.16
    $
10.25
    $
11.61
 
                         
Net investment loss
(a)
   
(0.03
)    
(0.03
)    
(0.03
)
Net realized and unrealized gain (loss)
(b)
   
1.32
     
0.94
     
(1.33
)
Net increase (decrease) in net assets from operations
   
1.29
     
0.91
     
(1.36
)
Net asset value per Share, end of year
  $
12.45
    $
11.16
    $
10.25
 
                         
Total return, at net asset value
(c)
   
11.56
%
   
8.88
%
   
(11.71
)%
                         
Ratio to average net assets:
                       
Net investment loss
   
(0.25
)%
   
(0.25
)%
   
(0.25
)%
Expenses
   
0.25
%
   
0.25
%
   
0.25
%
 

(a)
Based on average Shares outstanding during the period.
(b)
The amounts reported for a Share outstanding
may
not
accord with the change in aggregate gains and losses on investment for the period due to the timing of Trust Share transactions in relation to the fluctuating fair values of the Trust’s underlying investment.
(c)
Based on the change in net asset value of a Share during the period.