100 shares per option contract. Option may be exercised on any business day prior to the expiration date.
Limits vary according to the number of outstaing share and trading volume.
Customer hedge exemptions are available. Expiration occurs on the Saturday following the third Friday of the expiration month. NYA options have a minimum tick of .05 for all series. Generally, index options are listed at 5 point intervals to bracket the current value of the index. Higher index values may result in larger strike price intervals.