With SPX @ 1296.3
Double Calendar
Sell 1 Sep 1330 Call, Buy 1 Oct 1330 Call
Sell 1 Sep 1290 Put, Buy 1 Oct 1290 Put
Double Diagonal
Sell 1 Sep 1330 Call, Buy 1 Oct 1350 Call
Sell 1 Sep 1290 Put, Buy 1 Oct 1270 Put
The way I learnt these two strategies is they both start with the...