$HTZ: trying to understand this trade. A premium on $875 on 2500 shares means you sold at a spread of 0.35 right? Shouldn't the margin requirement be then: 2500 x (4-0.35) = $9,125? Also the Dec 30C doesn't seem to have enough liquidity ? I see only 4 contracts traded today at 2:51pm on the ETrade options screen.