Quote from rallymode:
Cache,
i guess you and i dont think alike about everything afterall.
With all due respect, i think that your fear of the SET is misguided. It is my impression that many here view the SET as the little brother of the black swan. Some even avoid using the SPX all together or prefer paying more in commissions or accept lesser credits on other instruments just so that they dont have to deal with the dreaded SET. While i agree that it is uncomfortable to see a winning position turn into a loser when you have no control over it since options expire thu night, i think the SET is just that - emotional discomfort. Its nature isn't much more than psychological and doesn't have much bearing on your long term results.
One of the benefits of being closer to the market is your increased r/r. With this relatively high r/r you can afford to see the position through as you are in no rush to close. And since probability bets is pretty much all we are doing here, letting things expire is probably a good way to go about things.
Statistically, with few exceptions, the SET is just as likely to help you as it is to hurt you. While sometimes it may turn your profitable OTM spreads into losers overnight, it will also save you and turn those losing ITM spreads into profitables OTM spreads just as many times.
I am not advocating that people completely dismiss the existence of the SET. People should clearly understand the risks it introduces on the short term, but over the long term, i think the SET is a non-event as the effects balance themselves out.
Just my views, you are welcome to disagree
I'm not really inclined to disagree with you. In fact, I agree with everything that you said. In the long run, it is a non-issue, IF your strategy includes holding all positions through expiration.
My comment should be taken in light of a position exit preference. Thursday afternoon before expiry and I am 5-points OTM.... am I likely to close the position or ride it out for a worthless expiration? Under these circumstances I will close the position rather than letting a +10 point SET ruin my day.
Given that I will probably be in a 5-10 point spread, a bad SET could take me from a situation where I would capture 90% of the potential profit from the trade, to a 100% margin loss without the ability to adjust. On the other hand, a favorable SET will only benefit me as much as the additional potential profit. So the r/r of holding through the SET is horrible.
If my short strike is ITM a couple days before expiry I will roll the position. Once I've rolled, a favorable SET doesn't help me. When viewed in this light, SET is only a bad thing with the potential to hurt and completely lacking the ability to help.
So let's say that I think we will find strong resistance at 1320-ish. What I am saying is that we won't break-out past 1320, but I'm not saying that we won't close near 1320 thurs afternoon. If I've ventured too close with my short strike (say 1330), a close at 1320-ish won't allow me to sit through expiration. As stated above, the r/r of sitting it out is horrible.
So I like to give myself a good enough cushion past certain support/resistance. Under these guidelines, I would never find myself opening a position closer than 20 points above/below the underlying
if I intended to hold it through expiry.