https://www.cmegroup.com/markets/fixing-price.html?redirect=/trading/fixing-price.html#fx
Everything about CME FX options remains the same, except the time they expire. The expiry time changed from 2 p.m. Chicago to 10 a.m. New York on June 9 2019.
https://www.cmegroup.com/markets/fx/g10/canadian-dollar.contractSpecs.options.html#optionProductId=8104
European style. Auto-exercised against ; no contrary instructions allowed.
In-the-money (ITM) strikes exercised. Out-of-the-money (OTM) strikes abandoned.
An option is ITM if the CME Group FX Fixing Price for the underlying futures contract is equal to or above the strike price in the case of a call or below the strike price in the case of a put.