Options on Micro E-mini Standard and Poors 500 Stock Price Index Futures Contract Specs

Micro E-mini S&P 500 futures (MES) offer smaller-sized versions of our liquid benchmark E-mini contracts
They are designed to manage exposure to the 500 U.S. large-cap stocks tracked by the S&P 500 Index, widely regarded as the best single gauge of the U.S. stock market
The Micro E-mini S&P 500 futures contract is $5 x the S&P 500 Index and has a minimum tick of 0.25 index points
View delayed data for Micro E-mini S&P 500 futures below for the open, high and low prices and volume for the active contracts

Contract Unit	One Micro E-mini S&P 500 futures contract
Minimum Price Fluctuation	Regular Tick: 0.25 index points = $1.25 for premium > 5.00 index points = $25.00 Reduced Tick: 0.05 index points = $0.25 for premium at or below 5.00 index points = $25.00
Trading Hours	CME Globex:	Sunday - Friday 6:00 p.m. - 5:00 p.m. Eastern Time (ET) with trading halt 4:15 p.m. - 4:30 p.m
	CME ClearPort:	Sunday 5:00 p.m. - Friday 5:45 p.m. CT with no reporting Monday - Thursday from 5:45 p.m. – 6:00 p.m. CT
Product Code	CME Globex: MES CME ClearPort: MES Clearing: MES
Listed Contracts	Contracts listed for 2 consecutive months in the March Quarterly Cycle (Mar, Jun, Sep, Dec)
Termination Of Trading	Trading terminates at 8:30 a.m. CT on the 3rd Friday of the contract month
Position Limits	CME Position Limits
Exchange Rulebook	CME 353A
Price Limit Or Circuit	Price Limits
Vendor Codes	Quote Vendor Symbols Listing
Strike Price Listing Procedures	100 index point integer multiples, when listed: +30% to -50% of the prior day’s settlement price on the underlying future contract 50 index point integer multiples, when listed: +20% to -40% of the prior day’s settlement price on the underlying future contract 10 index point integer multiples, when the underlying future is the second closest contract: +10% to -25% of the prior day’s settlement price on the underlying future contract 5 index point integer multiples, 35 days prior to expiry (or 5 Weeks): +5% to -15% of the prior day’s settlement price on the underlying future contract
Exercise Style	American Style
Exercise Procedure	American Style. An option can be exercised until 5.30 p.m. CT on any business day the option is traded
Settlement At Expiration	Option exercise results in a position in the underlying cash-settled futures contract. In-the-money options, in the absence of contrarian instructions delivered to the Clearing House by 5:30 p.m. CT on the day of expiration, are automatically exercised into expiring cash-settled futures, which settle to the SOQ calculated the morning of the 3rd Friday of the contract month
Settlement Method	Deliverable
Underlying	Micro E-mini S&P 500 Stock Price Index Futures

Contract Unit	One Micro E-mini S&P 500 futures
Minimum Price Fluctuation	Regular Tick: 0.25 index points = $1.25 for premium >5.00 index points = $25.00 Reduced Tick: 0.05 index points = $0.25 for premium at or below 5.00 index points = $25.00
Trading Hours	CME Globex:	Sunday - Friday 6:00 p.m. - 5:00 p.m. Eastern Time (ET) with trading halt 4:15 p.m. - 4:30 p.m
	CME ClearPort:	Sunday 5:00 p.m. - Friday 5:45 p.m. CT with no reporting Monday - Thursday from 5:45 p.m. – 6:00 p.m. CT
Product Code	CME Globex: EX CME ClearPort: EX Clearing: EX
Listed Contracts	Monthly contracts listed for 3 consecutive months.
Termination Of Trading	Trading terminates at 3:00 p.m. CT on the last business day of the contract month.
Position Limits	CME Position Limits
Exchange Rulebook	CME 353A
Price Limit Or Circuit	Price Limits
Vendor Codes	Quote Vendor Symbols Listing
Strike Price Listing Procedures	100 index point integer multiples, when listed: +30% to -50% of the prior day’s settlement price on the underlying future contract 50 index point integer multiples, when listed: +20% to -40% of the prior day’s settlement price on the underlying future contract 10 index point integer multiples, when listed: +10% to -25% of the prior day’s settlement price on the underlying future contract 5 index point integer multiples, 35 days prior to expiry: +5% to -15% of the prior day’s settlement price on the underlying future contract
Exercise Procedure	European Style. Exercisable only on expiration day.
Settlement At Expiration	Option exercise results in a position in the underlying cash-settled futures contract. Options which are in-the-money on the last day of trading are automatically exercised. A 3:00 p.m. CT price fixing based on the weighted average traded price fixing (symbol ESF) of the E-mini Standard and Poor’s 500 Stock Price Index Futures in the last 30 seconds of trading on expiration day (2:59:30 p.m.- 3:00:00 p.m. CT) will be used to determine which options are in-the-money. Contrarian instructions are prohibited.
Settlement Method	Deliverable
Underlying	Micro E-mini S&P 500 Stock Price Index Futures

Contract Unit	One E-mini S&P 500 futures contract
Minimum Price Fluctuation	Regular Tick: 0.25 index points = $1.25 for premium > 5.00 index points = $25.00 Reduced Tick: 0.05 index points = $0.25 for premium at or below 5.00 index points = $25.00
Trading Hours	Sunday - Friday 5:00 p.m. - 4:00 p.m. (6:00 p.m. - 5:00 p.m. ET) with a 60-minute break each day beginning at 4:00 p.m. (5:00 p.m. ET)
Product Code	CME Globex: EX1,EX2,EX3,EX4 CME ClearPort: EX1,EX2,EX3,EX4 Clearing: EX1,EX2,EX3,EX4
Listed Contracts	At any given time, three nearest weeks of EX1, EX2, and EX4 (Weeks 1, 2 & 4) and two nearest weeks of EX3 (Week 3) will be listed for trading
Termination Of Trading	Trading terminates at 3:00 p.m. CT on the Last Business Day of the contract month
Position Limits	CME Position Limits
Exchange Rulebook	CME 353A
Price Limit Or Circuit	Price Limits
Vendor Codes	Quote Vendor Symbols Listing
Strike Price Listing Procedures	EX3 (Week 3) 100 index point integer multiples, when listed: +30% to -50% of the prior day’s settlement price on the underlying future contract 50 index point integer multiples, when listed: +20% to -40% of the prior day’s settlement price on the underlying future contract 10 index point integer multiples, when listed: +10% to -25% of the prior day’s settlement price on the underlying future contract 5 index point integer multiples, 35 days prior to expiry: +5% to -15% of the prior day’s settlement price on the underlying future contract EX1, EX2 and EX4 (Week 1, 2 & 4) 100 index point integer multiples, when listed: +30% to -50% of the prior day’s settlement price on the underlying future contract 50 index point integer multiples, when listed: +20% to -40% of the prior day’s settlement price on the underlying future contract 10 index point integer multiples, when listed: +10% to -25% of the prior day’s settlement price on the underlying future contract 5 index point integer multiples, when listed: +5% to -15% of the prior day’s settlement price on the underlying future contract
Exercise Procedure	European Style. Exercisable only on expiration day.
Settlement At Expiration	Option exercise results in a position in the underlying cash-settled futures contract. Options which are in-the-money on the last day of trading are automatically exercised. A 3:00 p.m. CT price fixing based on the weighted average traded price fixing (symbol ESF) of the E-mini Standard and Poor’s 500 Stock Price Index Futures in the last 30 seconds of trading on expiration day (2:59:30 p.m.- 3:00:00 p.m. CT) will be used to determine which options are in-the-money. Contrarian instructions are prohibited.
Settlement Method	Deliverable
Underlying	Micro E-mini S&P 500 Stock Price Index Futures

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Options on Micro E-mini Standard and Poors 500 Stock Price Index Futures Contract Specs

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