The Mini-SPX Index, based on 1/10th the value of the Standard & Poor's 500 Index (SPX). The Standard & Poor's 500 Index is a capitalization-weighted index of 500 stocks from a broad range of industries. The component stocks are weighted according to the total market value of their outstanding "free float" shares.
Strike Price Intervals
Generally, $1 or greater where the strike price is $200 or less and $5.00 or greater where the strike price is greater than $200. For XSP weekly contracts, the lowest strike price interval Cboe may list is $0.50.
Strike (Exercise) Prices
In-, at- and out-of-the-money strike prices are initially listed. New strikes can be added as the index moves up or down.
Stated in decimals. One point equals $100. The minimum tick for XSP options is 0.01 ($1.00) for all series, including LEAPS.
European - Mini-SPX Index options generally may be exercised only on the expiration date.
Last Trading Days
The last trading day for Standard, Weekly and End-of-Month (EOM) XSP options is their expiration date. On their last trading day, trading in expiring XSP options closes at 4:00 p.m. ET.
Expiration Dates for Standard, Weekly and EOM Options
Standard XSP options expire on the third Friday of the expiration month or
the immediately preceding business day if the Exchange is not open on that
Friday. XSP Weekly options expire on a Monday, Tuesday, Wednesday, Thursday,
or a Friday. If the Exchange is not open on a Tuesday, Wednesday, Thursday, or Friday, the
normally expiring Tuesday, Wednesday, Thursday, or Friday Weekly will expire on the immediately
preceding business day. If the Exchange is not open on a Monday, the normally
expiring Monday XSP Weekly will expire on the first business day immediately
following that Monday. EOM XSP options expire on the last business day of the
Cboe may list up to twelve expiration months of XSP options at one time. Weekly options (End-of-Week, Wednesday Weekly), EOM options and LEAPS may also be listed.
Settlement of Option Exercise
Exercise will result in delivery of cash on the business day following expiration. The exercise settlement value, XSP, is one-tenth (1/10th) the official closing price of the S&P 500 Index as reported by Standard & Poor's on the last trading day of the expiring series. The exercise settlement amount is equal to the difference between the exercise-settlement value and the exercise price of the option, multiplied by $100.
No position and exercise limits are in effect.
Purchases of puts or calls with 9 months or less until expiration must be paid for in full. Writers of uncovered puts or calls must deposit / maintain 100% of the option proceeds* plus 15% of the aggregate contract value (current index level x $100) minus the amount by which the option is out-of-the-money, if any, subject to a minimum for calls of option proceeds* plus 10% of the aggregate contract value and a minimum for puts of option proceeds* plus 10% of the aggregate exercise price amount. (*For calculating maintenance margin, use option current market value instead of option proceeds.) Additional margin may be required pursuant to Exchange Rules 12.3(h) and 12.10.
XSP Trading Hours
Regular Hours: 8:30 a.m. to 3:15 p.m. (Chicago). Expiring Mini-SPX (XSP) Weeklys and End Of Month: On the last trading day, trading in both expiring Mini-SPX (XSP) Weeklys and End of Month closes at 3:00 p.m. (Chicago). All non-expiring XSP Weeklys and End of Month continue to trade until 3:15 p.m. (Chicago).
Curb: 3:15 p.m. to 4:00 p.m. (Chicago)
Global Trading Hours: 7:15 p.m. to 8:15 a.m. (Chicago)