) On a particular day, there were 5,000 trades in a particular futures contract. This means that there were 2,500 buyers (going long) and 2,500 sellers (going short). Of the 2,500 buyers, 1,500 were closing out positions and 1,000 were entering into new positions. Of the 2,500 sellers, 1,000 were closing out positions and 1,500 were entering into new positions. What is the impact of the days trading on open interest?