Yeah, my memory doens't go back that far. Are you certain there was a 40 handle move from Thursday's closing and the SET print on the following morning?
This is taken from the CBOE website under the data tab. "June 2005 SETTLEMENT VALUES S&P 100 (OEX): 572.34 S&P 500 (SET): 1222.68 Dow Jones (DJS): 106.75 Russell 2000 (RLS): 646.12 Nasdaq 100 (NDS): 1553.96" Set is not established by any trade, it is the opening price of each of the S & P 500 stocks. The SPX may not have traded anywhere near the final SET price. Here is the link. http://www.cboe.com/data/Settlement.aspx PS I do not think the NDS or DJS traded as high as their set either.
Also direct from the CBOE website: Settlement of Option Exercise: The exercise-settlement value, SET, is calculated using the opening (first) reported sales price in the primary market of each component stock on the last business day (usually a Friday) before the expiration date. If a stock in the index does not open on the day on which the exercise & settlement value is determined, the last reported sales price in the primary market will be used in calculating the exercise-settlement value. The exercise-settlement amount is equal to the difference between the exercise- settlement value, SET, and the exercise price of the option, multiplied by $100. Exercise will result in delivery of cash on the business day following expiration.
Yeah, I realize that the SPX need not trade there... I had only taken a look at the chart. Amazing that the SET traded 5 points > than the high-print.
Last year we had one about 5 or 6 below the low print as well. Futures dropped hard in the 30 mins before the open, then reversed on the open and the SET was way down, well below the low print.
Was told it comes out around 12PM and will appear on the CBOE website. With the index down to 1224.43 I am expecting a SET value below 1230. Phil