NO.PZ2020012001000017
问题如下:
Suppose that on a particular day there are 3,000 trades in a futures contract. Of the buyers in those 3,000 trades, 1,800 were closing out positions and 1,200 were taking new positions. Of the sellers in those 3,000 trades, 1,400 were closing out positions and 1,600 were taking new positions. What is the change in open interest during the day? Does it increase or decrease?
解释:
The open interest goes down by 200. This is because there are 1,200 new long positions and 1,400 long positions are closed out (with short trades). Alternatively, there are 1,800 new short positions and 1,600 are closed out (with long trades).
市场总量是剩下1600是吗