the 310's have Vega of apx .17 at 15 vol..If you believe the market will trade at 10 vol,theoretically you should be able to capture 5 vol handles which would be 5 x .17=.85.
Im rounding up the vol to 10% on the 323 strike
Keep in mind you are selling gamma at very low levels and your total edge for each 1x4 spread is 0.85...
Thanks for the reply! All this is great info for me. I am really just trying to find the most efficient way to "sell insurance" as part of my portfolio. If I come across as trying to find the holy grail of option trades, I am not. I believe markets are extremely efficient, but with that comes reward for taking risk. So again, thanks for all advice.
In my example, the 1/17 310 puts each have a vega of .17. So wouldn't the "total edge" be 4x the 0.85 you put above?
And given vega changes, (typically falls) as vol drops, can you just multiply the difference in impled vs realized by the options vega? For example, if the 310s IV dropped to 10%, its price would not fall by (5 x .17).
