Options Price Reporting Authority (OPRA)
A committee of representatives from participating exchanges responsible for providing last-sale options quotations and information from the participating exchanges.

Investopedia Says:
OPRA divides its services into two main areas: a basic service for all options except foreign currency derivatives and a "FCO service" for foreign currency options information. The organization includes the American Stock Exchange (AMEX), Chicago Board Options Exchange (CBOE), Boston Options Exchange (BOX), International Securities Exchange (ISE), Pacific Exchange (PCX) and Philadelphia Stock Exchange (PHLX).

Related Terms:
American Stock Exchange - AMEX
Chicago Board Options Exchange - CBOE
Exchange
Exercise Price
Option

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