The volume of EURO STOXX Banks Futures is 9.87 K.
Open interest is the number of contracts held by traders in active positions — they're not closed or expired. For EURO STOXX Banks Futures this number is 1.30 M. You can use it to track a prevailing market trend and adjust your own strategy: declining open interest for EURO STOXX Banks Futures shows that traders are closing their positions, which means a weakening trend.