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CONTRACTS AND AGREEMENTS (Tables)
 3 Months Ended
Mar. 31, 2018
Contractors [Abstract]  
Brokerage Commissions
 
 
For the three months
 
 
For the three months
 
 
 
ended
 
 
ended
 
 
 
March 31, 2018
 
 
March 31, 2017
 
Total commissions accrued to brokers
 
$
445,015
 
 
$
419,698
 
Total commissions as annualized percentage of average total net assets
 
 
0.41
%
 
 
0.34
%
Commissions accrued as a result of rebalancing
 
$
321,081
 
 
$
331,242
 
Percentage of commissions accrued as a result of rebalancing
 
 
72.15
%
 
 
78.92
%
Commissions accrued as a result of creation and redemption activity
 
$
123,934
 
 
$
88,456
 
Percentage of commissions accrued as a result of creation and redemption activity
 
 
27.85
%
 
 
21.08
%