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ORGANIZATION AND BUSINESS (Details)
 12 Months Ended
Jun. 02, 2010
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
contract
$ / shares
shares
Dec. 31, 2023
$ / shares
Dec. 31, 2022
$ / shares
Dec. 31, 2021
$ / shares
May 31, 2010
shares
ORGANIZATION AND BUSINESS            
Number of successive valuation days   30 days        
Average daily percentage change in the price of the Benchmark Futures Contract considered   10.00%        
Number of contracts | contract   1,535        
Initially registered units of entity with sec           50,000,000
Net asset value per unit | $ / shares $ 50 $ 30.14 $ 27.39 $ 28.26 $ 20.87  
Initial stock units issued 200,000          
Initial units value issued | $ $ 10,000,000          
Creation Baskets            
ORGANIZATION AND BUSINESS            
Number of units per baskets   50,000        
Transaction fee | $   $ 350        
Units issued during period to authorized purchasers through distributors   50,000