### Comment:
You're not borrowing 100k+ from your broker if you think that. The 6600 dollars are what the broker and the exchange requires you to hold that position. If the position goes against you, the money you lose is from these 6600 dollars you 'reserve'. You can be required to put up additional capital, just like when you are short options, and can therefore be issued a margin call.

### REPLY:
Not borrowing but if there's a big swing you can still be on the hook for a very large portion of that $100k+, right?

### END.