S&P 500® Index Options - SPX www.cboe.com/SPX

The S&P 500 Index is widely regarded as the leading benchmark of the overall U.S. stock market. Comprised of 500 leading companies, the index is considered the best single gauge of large cap U.S. equities.

Cboe is the exclusive home for S&P 500 Index options (SPX). Cboe's suite of S&P 500 products includes the flagship SPX contract -- the most-actively traded index option in the U.S. -- along with contracts featuring different expirations (SPXW - Weeklys and End-of-Month), exercises (AM and PM), sizes (regular and mini) and trading methods (electronic and open outcry).

S&P 500 Index options have Global Trading Hours (GTH) available. Trading hours begin at 2:00 a.m. Central time and end at 8:15 a.m Central time. Please visit the Global Trading Hours page for more details.

Cboe's SPX products provide investors different ways to efficiently gain exposure to the U.S. market and execute risk management, hedging, asset allocation and income generation strategies.

Description Underlying Options Chain

Options Root Ticker Symbol

Settlement AM or PM Settlement Date* Settlement Type Exercise-Style GTH Available
SPX Options Traditional (AM-Settled on 3rd Friday of Every Month)
SPX SPX SPX AM-settled 3rd Fridays Cash European Yes
SPX Options Non-Traditional (PM-Settled on Various Expiration Dates)
SPX Friday End-of-Weeks (EOW) SPX SPXW PM-settled Fridays Cash European Yes
SPX Wednesday Weeklys SPX SPXW PM-settled Wednesdays Cash European Yes
SPX Monday Weeklys SPX SPXW PM-settled Mondays Cash European Yes
SPX End-of-Month (EOM) SPX SPXW PM-settled Last Trading day of Month Cash European Yes
SPX PM-settled 3rd Fridays SPX SPXW PM-settled 3rd Fridays Cash European Yes
SPX Options - Mini (1/10th the Notional Size)
Mini-SPX Index Options (Weeklys Available) XSP XSP PM-settled Fridays Cash European No
SPY Options - SPDR ETF
SPDR ETF Options (3rd Fridays, Weeklys and Quarterlys) SPY SPY PM-settled Fridays or End of Quarters Physical ETF American No

* In the case of a holiday on the settlement date, the settlement date is moved back one business day (e.g. from Friday to Thursday), with the exception of Monday Weeklys, where the settlement date will move forward one business day (i.e. Monday to Tuesday). In addition, no SPX EOW, Wednesday Weeklys, or Monday Weeklys will be listed that would have an expiration date that coincides with the expiration date of a traditional SPX option or SPX EOM option.

SPX Options - Conversion to the Hybrid Platform

  • Please visit www.cboe.com/Hybrid for updates on conversion of SPX options series to the standard Hybrid trading platform.

Key features of SPX options include:

  • Large Notional Size -- around $200,000 per Contract with the SPX index at 2000 (10 times that of SPDR options)
  • No Early Exercise of SPX Options - European-style Exercise
  • Cash-settlement with No Delivery of Stocks or ETFs
  • Price and Quote Transparency with Competitive Auction Markets for Leading Option Contracts
  • Daily Mark-to-market for SEC-regulated securities
  • Clearance of Transactions is guaranteed by the Options Clearing Corporation
  • Margin - Cboe Regulatory Circular RG15-183 notes that Cboe rules allow a short position in a cash-settled-index option established and carried in a margin account to receive covered margin treatment, if the short option position is offset in the same account by an equivalent position in an index-tracking ETF that is based on the same index that underlies the short option(s).

    In order to receive covered margin treatment, the market value of the offsetting ETF position must be equivalent or exceed the current aggregate index value of the option being covered. One should note that not all ETFs are managed so as to maintain a share price that is a constant fraction (e.g., 1/10 th, 1/100 th, 1/1,000 th, etc.) of the index being tracked.
  • Tax Treatment under section 1256 of the Tax Code, profit and loss on transactions in certain exchange-traded options, including SPX, SPXW and XSP, are entitled to be taxed at a rate equal to 60% long-term and 40% short-term capital gain or loss, provided that the investor involved and the strategy employed satisfy the criteria of the Tax Code*

* Investors should consult with their tax advisors to determine how the profit and loss on any particular option strategy will be taxed. Tax laws and regulations change from time to time and may be subject to varying interpretations.

Conversion of SPXPM options to Symbol SPXW

On May 1, 2017, Cboe changed the symbol for existing SPXPM option series to option symbol SPXW in both the Regular Trading Hours (RTH) and Global Trading Hours (GTH) session.

On standard expiration dates (i.e., generally the third Friday of the month), both AM-settled options trading under symbol SPX and PM-settled options trading under symbol SPXW, both of which have the same underlying SPX index, will expire and be settled. The settlement symbol for the AM-settled SPX options will be “SET”; settlement for the PM-settled SPXW options is based on the official SPX closing price on the expiration date.

For more details, see Cboe Regulatory Circular RG17-002.


SPX Average Daily Volume
SPX Weeklys ADV

Updated Price Charts


Investors appreciate many features of the SPX options, including:

  • the fact that the options are tied to the world's leading benchmark for institutional investors;
  • SPX options are powerful, flexible tools that allow investors to synthetically adjust their positions to a 500-stock portfolio;
  • these listed options minimize counterparty risk - they are guaranteed by The Options Clearing Corporation;
  • there is price discovery in competitive, SEC-regulated auction markets.