The volume of Aluminum MW U.S. Transaction Premium Platts (25MT) Futures is 0.
Open interest is the number of contracts held by traders in active positions — they're not closed or expired. For Aluminum MW U.S. Transaction Premium Platts (25MT) Futures this number is 2.70 K. You can use it to track a prevailing market trend and adjust your own strategy: declining open interest for Aluminum MW U.S. Transaction Premium Platts (25MT) Futures shows that traders are closing their positions, which means a weakening trend.