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CONTRACTS AND AGREEMENTS (Tables)
 3 Months Ended
Mar. 31, 2019
Contractors [Abstract]  
Brokerage Commissions
 
 
For the three months

ended

March 31, 2019
 
 
For the three months

ended

March 31, 2018
 
Total commissions accrued to brokers
 
$
271,564
 
 
$
445,015
 
Total commissions as annualized percentage of average total net assets
 
 
0.38
%
 
 
0.41
%
Commissions accrued as a result of rebalancing
 
$
217,217
 
 
$
321,081
 
Percentage of commissions accrued as a result of rebalancing
 
 
79.99
%
 
 
72.15
%
Commissions accrued as a result of creation and redemption activity
 
$
54,347
 
 
$
123,934
 
Percentage of commissions accrued as a result of creation and redemption activity
 
 
20.01
%
 
 
27.85
%