1, right! For example, if 1 short position and 1 long position are closed at the same time, the positions of futures contracts will increase. If 1 short and 1 long are combined at the same time, then the position will be reduced. When 1 short contract closing matches 1 short contract closing, the positions will not increase or decrease. When the closing position of 1 long contract is matched with the closing position of 1 long contract, the position will not increase or decrease. In each case, the turnover increased by 2 lots.

2. The margin of stock index futures is higher than that of commodity futures. The margin of stock index futures is generally 18%! For example, the futures index 1200 points (the fact is about 2900), and the margin is1200 * 300 *18% = 64800 yuan/hand. If it is a bull, the increase of one point is to earn 300 yuan, which is reflected in your available funds, and has nothing to do with the deposit before your settlement that day.