Quote from zman7854:
NOV SET prices on SPX 1254.85 - big move from the close yesterday and huge move from highs this a.m. (1249). :eek:
Hope everyone did alright with their positions.
Quote from andysmith:
REDUCING RISK.
I'd like some feedback on this techique to reduce spread risk. Say you have $100,000 to invest. Instead of putting it all one spread or iron condor, all in one day, how about doing 5 or 10 separate spreads over the course of two weeks?
If the underlying stays totally flat, then all 10 spreads may have identical strikes. But if the underlying moves around then you've distributed your spreads around a dancing underlying, and therefore reduced risk. Comments?
Quote from ssternlight:
I'm missing something here obviously. I thought the SET was the opening price of the SPX on Friday. How could it be higher than the high of the day?
Quote from optioncoach:
The SET is based on the opening prices of all 500 stocks. If stocks open at different times throughout the morning on gap ups then it could skew the gap higher. The SPX takes all 500 stocks at the same instant while the SET could have stock prices spread out over an hour or so. It is quite possible that the SET was made at the opening of all 500 and most opened at their high for the day but staggared. Imagine taking the index value just using the high for the day of every stock and compare that to the actual high of the index for the day. The only way the index in that situation would have a high similar to the value if all the stocks hit their highs for the day at the same exact time.
So the SET was juiced higher because most stocks gapped up at the open with different open price times.

Quote from skdoyle1:
Still, with all the reading I've done at CBOE on SET and all the discussions here, I STILL don't get it. It seems like a blackbox number to me. How did they get 1254 when:
Open: 1,249.35
Day's Range: 1,241.87 - 1,249.58
52wk Range: 1,136.15 - 1,245.86
Didn't affect me at all, but I feel for all the dudes who had a short 1250.
sd
Quote from optioncoach:
Some problems are that if you do 10 different spreads you might be getting like $400 for each spread. Over two weeks with theta and market swings you could do worse trying to grab puts with the market running away from you and chasing the premium to higher strikes. Since the $100,000 will still be invested in the same position ultimately, there is no clear advantage of legging in 10 spreads at a time or just doing 100 40 days out. I think it is hard to define ahead of time how you are going to go in. Legging in might raise your overall average entry or it might lower it. In the end you might average out to what you initial were trying to get over the long haul. Maybe not, I have not tested it but I prefer to commit to the spread when I have time to get the premium and can always add later since I always keep margin in reserve.
Quote from reengleman:
I just spoke with a rep at the CBOE about the SET being 5 points higher than the high of the day for the SPX. He responded that SET was a settlement figure, as opposed to an index number. When I asked if it could be lower than the previous day's close, he didn't know. I've learned my lesson, and will return to the XEO.
Bob Engleman