Brain Fart Question on SPX options
I sell a call at say 2150 expiring on Jan. 9 and buy one for 2220 expiring EOM, my margin, for the week, is $5000.
And if I sell a put spread similarly OTM and dated weekly and monthly, it does not add to my margin.
Not using portfolio margin, using IB.
Thanks in advance.
By the way, in the parlance of the trade, what is this spread called (no snark please). Diagonal time calendar?
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