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@Sirion I don't think it's too late. Looking at the Thinkback on TOS the EOD price on a 56/50 spread is back at .83 today which is exactly the same as EOD on the 17th. Basically you want to see a steady trend sideways or upward to take advantage of either/or gamma and theta so that the position can be bought back to cover at a cheaper price. But as has been pointed out the risk to reward ratio is daunting -- in this case 1:4 ($83 premium received with risk of $517 loss). So one loss can wipe out a lot of prospective wins. That tells me that a tight Stop Loss is a must -- but in a period of volatility that creates it's own problems. Plus the profitability is 16% maximum -- 83/517 of margin used. (Others can correct me on this if I'm wrong with this calculation of profitability). The spread is going to cost something to buy back so it will be something less than 16%. Obviously, I am not annualizing this result to get the same or similar number that Ophir indicates. Bottom line for me: It's a longer play needing careful management and I'm not blown away by the profit potential. I will stay away unless someone can convince me otherwise.

Closed out MRVL this morning on a GTC order. In 23.5 Dec8 call yesterday for $0.80 near end of day. Out this morning for $1.10, a gain of 34% after commissions. I noticed that the price had a quick spike up, then almost immediate pullback after my order executed. Even so, those who got in before me are probably sitting on very nice gains.

stock: MOMO Earnings: 11/28/2017 I'm planning to enter sometime today depending on the trend. yesterday it was bearish. We have 2.5 tradings left with weekend and thanksgiving holidays. Let's see how this one goes.

I would also be interested.