I have a couple silly questions here that i hope some can help out with. -I bought a put option on gold futures. $16 put on ZG. It is OTM. My unrealized profit fluctuates. How can my unrealized loss grow...i thought the point of an option was that you can only lose the premium? ($16) -It seems i had to post margin as if i was buying a futures contract...i assume this is standard procedure? -How do i calculate a running P/L count. How do i calculate the value of a $2 change, or a $1 change. I assume this will change based on how the greeks change. Yes i know i sound like an idiot, so flame away if you'd like. But, I'd really appreciate any help. Thanks all.