1708 means that this contract 17 enters the delivery month in August, and then it will involve the last trading day, delivery period, position restrictions and so on.
Second, taking Shanghai Aluminum as an example, aluminum futures:
① The last trading day is 15 of the contract delivery month (postponed in case of legal holidays);
(2) The delivery period is 5 consecutive working days after the last trading day;
(3) Position restriction: For individual investors, after the closing of the third trading day before the last trading day, they can't hold positions. If they hold positions, they can close their positions directly, because natural persons can't enter delivery.
Therefore, for Shanghai Aluminum 1708 Contract:
① The last trading day is August 15, and Tuesday is a working day, which need not be postponed;
② The delivery dates are 8. 16, 8. 17, 8. 18, (8. 19 and 8.20 are weekends and non-working days) 8.2 1 and 8.22 respectively;
③ Position restriction: The first three trading days of the last trading day (8. 15) are August 10. According to the above position restrictions, individual investors need to close all positions of Shanghai Aluminum before 8. 10 closing. If there are still positions after the close, close the position directly.
3. Futures varieties with different variety rules have different last trading day, delivery period and position restrictions.
You can view the contract information directly in the quotation software by pressing F 10. Or you can consult me, there are summary data ~ o (* *) o.