CBOE Mexico Index Options

Symbol:
MEX

Underlying:
The CBOE Mexico Index is an equal dollar weighted index of ten U.S.-listed Mexican ADRs and ADSs. The Index will be rebalanced quarterly after the close of trading on the third Friday of March, June, September and December to maintain equal-dollar weighting.

Index Components

Multiplier:
$100.

Strike Price Intervals:
5 points.

Strike Prices:
In-, at- and out-of-the-money strike prices are initially listed. New series are generally added when the underlying trades through the highest or lowest strike price available.

Premium Quote:
Stated in decimals. One point equals $100. Minimum tick for options trading below 3.00 is 0.05 ($5.00) and for all other series, 0.10 ($10.00).

Expiration Date:
Saturday immediately following the third Friday of the expiration month.

Expiration Months:
Up to three near-term months plus up to three additional months from the March quarterly cycle (March, June, September and December).

Exercise Style:
European- MEX options may be exercised only on the last business day before expiration.

Last Trading Day:
Trading in MEX options will ordinarily cease on the business day (usually a Thursday) preceding the day on which the exercise-settlement value is calculated.

Settlement of Option Exercise:
The exercise-settlement value, MEO, is calculated using the first (opening) 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 and the exercise price of the option, multiplied by $100. Exercise will result in delivery of cash on the business day following expiration.

Position and Exercise Limits:
The aggregate (MEX and MEX LEAPS) position and exercise limits are 24,000 contracts on the same side of the market. 10 MEX LEAPS are equivalent to 1 full-value MEX option contract. *

Margin:
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 20% 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 Rule 12.10.

Cusip Number:
124973

Trading Hours:
8:30 a.m. - 3:15 p.m. Central Time (Chicago time).

Position and Exercise limits are subject to change.